Merge gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net
Dave writes:
"Various fixes, all over the place:
1) OOB data generation fix in bluetooth, from Matias Karhumaa.
2) BPF BTF boundary calculation fix, from Martin KaFai Lau.
3) Don't bug on excessive frags, to be compatible in situations mixing
older and newer kernels on each end. From Juergen Gross.
4) Scheduling in RCU fix in hv_netvsc, from Stephen Hemminger.
5) Zero keying information in TLS layer before freeing copies
of them, from Sabrina Dubroca.
6) Fix NULL deref in act_sample, from Davide Caratti.
7) Orphan SKB before GRO in veth to prevent crashes with XDP,
from Toshiaki Makita.
8) Fix use after free in ip6_xmit, from Eric Dumazet.
9) Fix VF mac address regression in bnxt_en, from Micahel Chan.
10) Fix MSG_PEEK behavior in TLS layer, from Daniel Borkmann.
11) Programming adjustments to r8169 which fix not being to enter deep
sleep states on some machines, from Kai-Heng Feng and Hans de
Goede.
12) Fix DST_NOCOUNT flag handling for ipv6 routes, from Peter
Oskolkov."
* gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (45 commits)
net/ipv6: do not copy dst flags on rt init
qmi_wwan: set DTR for modems in forced USB2 mode
clk: x86: Stop marking clocks as CLK_IS_CRITICAL
r8169: Get and enable optional ether_clk clock
clk: x86: add "ether_clk" alias for Bay Trail / Cherry Trail
r8169: enable ASPM on RTL8106E
r8169: Align ASPM/CLKREQ setting function with vendor driver
Revert "kcm: remove any offset before parsing messages"
kcm: remove any offset before parsing messages
net: ethernet: Fix a unused function warning.
net: dsa: mv88e6xxx: Fix ATU Miss Violation
tls: fix currently broken MSG_PEEK behavior
hv_netvsc: pair VF based on serial number
PCI: hv: support reporting serial number as slot information
bnxt_en: Fix VF mac address regression.
ipv6: fix possible use-after-free in ip6_xmit()
net: hp100: fix always-true check for link up state
ARM: dts: at91: add new compatibility string for macb on sama5d3
net: macb: disable scatter-gather for macb on sama5d3
net: mvpp2: let phylink manage the carrier state
...
diff --git a/Documentation/ABI/stable/sysfs-devices-system-xen_memory b/Documentation/ABI/stable/sysfs-devices-system-xen_memory
index caa311d..6d83f95 100644
--- a/Documentation/ABI/stable/sysfs-devices-system-xen_memory
+++ b/Documentation/ABI/stable/sysfs-devices-system-xen_memory
@@ -75,3 +75,12 @@
Description:
Amount (in KiB) of low (or normal) memory in the
balloon.
+
+What: /sys/devices/system/xen_memory/xen_memory0/scrub_pages
+Date: September 2018
+KernelVersion: 4.20
+Contact: xen-devel@lists.xenproject.org
+Description:
+ Control scrubbing pages before returning them to Xen for others domains
+ use. Can be set with xen_scrub_pages cmdline
+ parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 64a3bf5..92eb1f4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5000,6 +5000,12 @@
Disables the PV optimizations forcing the HVM guest to
run as generic HVM guest with no PV drivers.
+ xen_scrub_pages= [XEN]
+ Boolean option to control scrubbing pages before giving them back
+ to Xen, for use by other domains. Can be also changed at runtime
+ with /sys/devices/system/xen_memory/xen_memory0/scrub_pages.
+ Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.
+
xirc2ps_cs= [NET,PCMCIA]
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index 390c145..52a719b 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -348,3 +348,7 @@
1.13.1 Fix deadlock caused by early md_stop_writes(). Also fix size an
state races.
1.13.2 Fix raid redundancy validation and avoid keeping raid set frozen
+1.14.0 Fix reshape race on small devices. Fix stripe adding reshape
+ deadlock/potential data corruption. Update superblock when
+ specific devices are requested via rebuild. Fix RAID leg
+ rebuild errors.
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 4b2084d..a6c6a8a 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -848,7 +848,7 @@
----------------------
This describes how the VFS can manipulate an open file. As of kernel
-4.1, the following members are defined:
+4.18, the following members are defined:
struct file_operations {
struct module *owner;
@@ -858,11 +858,11 @@
ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
int (*iterate) (struct file *, struct dir_context *);
+ int (*iterate_shared) (struct file *, struct dir_context *);
__poll_t (*poll) (struct file *, struct poll_table_struct *);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
- int (*mremap)(struct file *, struct vm_area_struct *);
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *, fl_owner_t id);
int (*release) (struct inode *, struct file *);
@@ -882,6 +882,10 @@
#ifndef CONFIG_MMU
unsigned (*mmap_capabilities)(struct file *);
#endif
+ ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
+ int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
+ int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
+ int (*fadvise)(struct file *, loff_t, loff_t, int);
};
Again, all methods are called without any locks being held, unless
@@ -899,6 +903,9 @@
iterate: called when the VFS needs to read the directory contents
+ iterate_shared: called when the VFS needs to read the directory contents
+ when filesystem supports concurrent dir iterators
+
poll: called by the VFS when a process wants to check if there is
activity on this file and (optionally) go to sleep until there
is activity. Called by the select(2) and poll(2) system calls
@@ -951,6 +958,16 @@
fallocate: called by the VFS to preallocate blocks or punch a hole.
+ copy_file_range: called by the copy_file_range(2) system call.
+
+ clone_file_range: called by the ioctl(2) system call for FICLONERANGE and
+ FICLONE commands.
+
+ dedupe_file_range: called by the ioctl(2) system call for FIDEDUPERANGE
+ command.
+
+ fadvise: possibly called by the fadvise64() system call.
+
Note that the file operations are implemented by the specific
filesystem in which the inode resides. When opening a device node
(character or block special) most filesystems will call special
diff --git a/Documentation/process/code-of-conduct.rst b/Documentation/process/code-of-conduct.rst
new file mode 100644
index 0000000..ab7c24b
--- /dev/null
+++ b/Documentation/process/code-of-conduct.rst
@@ -0,0 +1,81 @@
+Contributor Covenant Code of Conduct
+++++++++++++++++++++++++++++++++++++
+
+Our Pledge
+==========
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and
+expression, level of experience, education, socio-economic status, nationality,
+personal appearance, race, religion, or sexual identity and orientation.
+
+Our Standards
+=============
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others’ private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+
+Our Responsibilities
+====================
+
+Maintainers are responsible for clarifying the standards of acceptable behavior
+and are expected to take appropriate and fair corrective action in response to
+any instances of unacceptable behavior.
+
+Maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, or to ban temporarily or permanently any
+contributor for other behaviors that they deem inappropriate, threatening,
+offensive, or harmful.
+
+Scope
+=====
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+Enforcement
+===========
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the Technical Advisory Board (TAB) at
+<tab@lists.linux-foundation.org>. All complaints will be reviewed and
+investigated and will result in a response that is deemed necessary and
+appropriate to the circumstances. The TAB is obligated to maintain
+confidentiality with regard to the reporter of an incident. Further details of
+specific enforcement policies may be posted separately.
+
+Maintainers who do not follow or enforce the Code of Conduct in good faith may
+face temporary or permanent repercussions as determined by other members of the
+project’s leadership.
+
+Attribution
+===========
+
+This Code of Conduct is adapted from the Contributor Covenant, version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
diff --git a/Documentation/process/code-of-conflict.rst b/Documentation/process/code-of-conflict.rst
deleted file mode 100644
index 47b6de76..0000000
--- a/Documentation/process/code-of-conflict.rst
+++ /dev/null
@@ -1,28 +0,0 @@
-Code of Conflict
-----------------
-
-The Linux kernel development effort is a very personal process compared
-to "traditional" ways of developing software. Your code and ideas
-behind it will be carefully reviewed, often resulting in critique and
-criticism. The review will almost always require improvements to the
-code before it can be included in the kernel. Know that this happens
-because everyone involved wants to see the best possible solution for
-the overall success of Linux. This development process has been proven
-to create the most robust operating system kernel ever, and we do not
-want to do anything to cause the quality of submission and eventual
-result to ever decrease.
-
-If however, anyone feels personally abused, threatened, or otherwise
-uncomfortable due to this process, that is not acceptable. If so,
-please contact the Linux Foundation's Technical Advisory Board at
-<tab@lists.linux-foundation.org>, or the individual members, and they
-will work to resolve the issue to the best of their ability. For more
-information on who is on the Technical Advisory Board and what their
-role is, please see:
-
- - http://www.linuxfoundation.org/projects/linux/tab
-
-As a reviewer of code, please strive to keep things civil and focused on
-the technical issues involved. We are all humans, and frustrations can
-be high on both sides of the process. Try to keep in mind the immortal
-words of Bill and Ted, "Be excellent to each other."
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 37bd062..9ae3e31 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -20,7 +20,7 @@
:maxdepth: 1
howto
- code-of-conflict
+ code-of-conduct
development-process
submitting-patches
coding-style
diff --git a/Documentation/x86/earlyprintk.txt b/Documentation/x86/earlyprintk.txt
index 688e3ee..46933e0 100644
--- a/Documentation/x86/earlyprintk.txt
+++ b/Documentation/x86/earlyprintk.txt
@@ -35,25 +35,25 @@
( If your system does not list a debug port capability then you probably
won't be able to use the USB debug key. )
- b.) You also need a Netchip USB debug cable/key:
+ b.) You also need a NetChip USB debug cable/key:
http://www.plxtech.com/products/NET2000/NET20DC/default.asp
- This is a small blue plastic connector with two USB connections,
+ This is a small blue plastic connector with two USB connections;
it draws power from its USB connections.
c.) You need a second client/console system with a high speed USB 2.0
port.
- d.) The Netchip device must be plugged directly into the physical
+ d.) The NetChip device must be plugged directly into the physical
debug port on the "host/target" system. You cannot use a USB hub in
between the physical debug port and the "host/target" system.
The EHCI debug controller is bound to a specific physical USB
- port and the Netchip device will only work as an early printk
+ port and the NetChip device will only work as an early printk
device in this port. The EHCI host controllers are electrically
wired such that the EHCI debug controller is hooked up to the
- first physical and there is no way to change this via software.
+ first physical port and there is no way to change this via software.
You can find the physical port through experimentation by trying
each physical port on the system and rebooting. Or you can try
and use lsusb or look at the kernel info messages emitted by the
@@ -65,9 +65,9 @@
to the hardware vendor, because there is no reason not to wire
this port into one of the physically accessible ports.
- e.) It is also important to note, that many versions of the Netchip
+ e.) It is also important to note, that many versions of the NetChip
device require the "client/console" system to be plugged into the
- right and side of the device (with the product logo facing up and
+ right hand side of the device (with the product logo facing up and
readable left to right). The reason being is that the 5 volt
power supply is taken from only one side of the device and it
must be the side that does not get rebooted.
@@ -81,13 +81,18 @@
CONFIG_EARLY_PRINTK_DBGP=y
And you need to add the boot command line: "earlyprintk=dbgp".
+
(If you are using Grub, append it to the 'kernel' line in
- /etc/grub.conf)
+ /etc/grub.conf. If you are using Grub2 on a BIOS firmware system,
+ append it to the 'linux' line in /boot/grub2/grub.cfg. If you are
+ using Grub2 on an EFI firmware system, append it to the 'linux'
+ or 'linuxefi' line in /boot/grub2/grub.cfg or
+ /boot/efi/EFI/<distro>/grub.cfg.)
On systems with more than one EHCI debug controller you must
specify the correct EHCI debug controller number. The ordering
comes from the PCI bus enumeration of the EHCI controllers. The
- default with no number argument is "0" the first EHCI debug
+ default with no number argument is "0" or the first EHCI debug
controller. To use the second EHCI debug controller, you would
use the command line: "earlyprintk=dbgp1"
@@ -111,7 +116,7 @@
see the raw output.
c.) On Nvidia Southbridge based systems: the kernel will try to probe
- and find out which port has debug device connected.
+ and find out which port has a debug device connected.
3. Testing that it works fine:
diff --git a/MAINTAINERS b/MAINTAINERS
index d870cb5..4ece30f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5625,6 +5625,8 @@
FBTFT Framebuffer drivers
M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+L: dri-devel@lists.freedesktop.org
+L: linux-fbdev@vger.kernel.org
S: Maintained
F: drivers/staging/fbtft/
@@ -6060,7 +6062,7 @@
GASKET DRIVER FRAMEWORK
M: Rob Springer <rspringer@google.com>
-M: John Joseph <jnjoseph@google.com>
+M: Todd Poynor <toddpoynor@google.com>
M: Ben Chan <benchan@chromium.org>
S: Maintained
F: drivers/staging/gasket/
@@ -7016,6 +7018,20 @@
F: drivers/crypto/vmx/ghash*
F: drivers/crypto/vmx/ppc-xlate.pl
+IBM Power PCI Hotplug Driver for RPA-compliant PPC64 platform
+M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+L: linux-pci@vger.kernel.org
+L: linuxppc-dev@lists.ozlabs.org
+S: Supported
+F: drivers/pci/hotplug/rpaphp*
+
+IBM Power IO DLPAR Driver for RPA-compliant PPC64 platform
+M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+L: linux-pci@vger.kernel.org
+L: linuxppc-dev@lists.ozlabs.org
+S: Supported
+F: drivers/pci/hotplug/rpadlpar*
+
IBM ServeRAID RAID DRIVER
S: Orphan
F: drivers/scsi/ips.*
@@ -8300,7 +8316,7 @@
F: Documentation/devicetree/bindings/ata/
LIBLOCKDEP
-M: Sasha Levin <alexander.levin@verizon.com>
+M: Sasha Levin <alexander.levin@microsoft.com>
S: Maintained
F: tools/lib/lockdep/
@@ -11154,7 +11170,7 @@
PCI DRIVER FOR SYNOPSYS DESIGNWARE
M: Jingoo Han <jingoohan1@gmail.com>
-M: Joao Pinto <Joao.Pinto@synopsys.com>
+M: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -11346,10 +11362,10 @@
F: drivers/platform/x86/peaq-wmi.c
PER-CPU MEMORY ALLOCATOR
+M: Dennis Zhou <dennis@kernel.org>
M: Tejun Heo <tj@kernel.org>
M: Christoph Lameter <cl@linux.com>
-M: Dennis Zhou <dennisszhou@gmail.com>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git
S: Maintained
F: include/linux/percpu*.h
F: mm/percpu*.c
diff --git a/Makefile b/Makefile
index 4d5c883a..f03a1e0 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 19
SUBLEVEL = 0
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
NAME = Merciless Moray
# *DOCUMENTATION*
@@ -299,19 +299,7 @@
KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
-# SUBARCH tells the usermode build what the underlying arch is. That is set
-# first, and if a usermode build is happening, the "ARCH=um" on the command
-# line overrides the setting of ARCH below. If a native build is happening,
-# then ARCH is assigned, getting whatever value it gets normally, and
-# SUBARCH is subsequently ignored.
-
-SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
- -e s/sun4u/sparc64/ \
- -e s/arm.*/arm/ -e s/sa110/arm/ \
- -e s/s390x/s390/ -e s/parisc64/parisc/ \
- -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
- -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
- -e s/riscv.*/riscv/)
+include scripts/subarch.include
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
@@ -616,6 +604,11 @@
$(call cc-disable-warning,maybe-uninitialized,)
export CFLAGS_GCOV
+# The arch Makefiles can override CC_FLAGS_FTRACE. We may also append it later.
+ifdef CONFIG_FUNCTION_TRACER
+ CC_FLAGS_FTRACE := -pg
+endif
+
# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
# values of the respective KBUILD_* variables
ARCH_CPPFLAGS :=
@@ -755,9 +748,6 @@
endif
ifdef CONFIG_FUNCTION_TRACER
-ifndef CC_FLAGS_FTRACE
-CC_FLAGS_FTRACE := -pg
-endif
ifdef CONFIG_FTRACE_MCOUNT_RECORD
# gcc 5 supports generating the mcount tables directly
ifeq ($(call cc-option-yn,-mrecord-mcount),y)
diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h
index 1b5e0e8..7e2b3e3 100644
--- a/arch/arm64/include/asm/jump_label.h
+++ b/arch/arm64/include/asm/jump_label.h
@@ -28,7 +28,7 @@
static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
- asm goto("1: nop\n\t"
+ asm_volatile_goto("1: nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".align 3\n\t"
".quad 1b, %l[l_yes], %c0\n\t"
@@ -42,7 +42,7 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool bran
static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
{
- asm goto("1: b %l[l_yes]\n\t"
+ asm_volatile_goto("1: b %l[l_yes]\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".align 3\n\t"
".quad 1b, %l[l_yes], %c0\n\t"
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 95ac737..4c8b13b 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -54,6 +54,7 @@
arm64-obj-$(CONFIG_ARM64_RELOC_TEST) += arm64-reloc-test.o
arm64-reloc-test-y := reloc_test_core.o reloc_test_syms.o
arm64-obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
+arm64-obj-$(CONFIG_CRASH_CORE) += crash_core.o
arm64-obj-$(CONFIG_ARM_SDE_INTERFACE) += sdei.o
arm64-obj-$(CONFIG_ARM64_SSBD) += ssbd.o
diff --git a/arch/arm64/kernel/crash_core.c b/arch/arm64/kernel/crash_core.c
new file mode 100644
index 0000000..ca4c3e1
--- /dev/null
+++ b/arch/arm64/kernel/crash_core.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) Linaro.
+ * Copyright (C) Huawei Futurewei Technologies.
+ */
+
+#include <linux/crash_core.h>
+#include <asm/memory.h>
+
+void arch_crash_save_vmcoreinfo(void)
+{
+ VMCOREINFO_NUMBER(VA_BITS);
+ /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */
+ vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n",
+ kimage_voffset);
+ vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n",
+ PHYS_OFFSET);
+ vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
+}
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index f6a5c6b..922add8 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -358,14 +358,3 @@ void crash_free_reserved_phys_range(unsigned long begin, unsigned long end)
}
}
#endif /* CONFIG_HIBERNATION */
-
-void arch_crash_save_vmcoreinfo(void)
-{
- VMCOREINFO_NUMBER(VA_BITS);
- /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */
- vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n",
- kimage_voffset);
- vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n",
- PHYS_OFFSET);
- vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
-}
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 5e4a59b..2691a18 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -211,7 +211,7 @@ static inline long ffz(int x)
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static inline long fls(int x)
+static inline int fls(int x)
{
int r;
@@ -232,7 +232,7 @@ static inline long fls(int x)
* the libc and compiler builtin ffs routines, therefore
* differs in spirit from the above ffz (man ffs).
*/
-static inline long ffs(int x)
+static inline int ffs(int x)
{
int r;
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 77459df..7ebe7ad 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -60,7 +60,7 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size,
panic("Can't create %s() memory pool!", __func__);
else
gen_pool_add(coherent_pool,
- pfn_to_virt(max_low_pfn),
+ (unsigned long)pfn_to_virt(max_low_pfn),
hexagon_coherent_pool_size, -1);
}
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index 80b2729..ab9a0eb 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -208,7 +208,7 @@ static int cbc_paes_crypt(struct blkcipher_desc *desc, unsigned long modifier,
walk->dst.virt.addr, walk->src.virt.addr, n);
if (k)
ret = blkcipher_walk_done(desc, walk, nbytes - k);
- if (n < k) {
+ if (k < n) {
if (__cbc_paes_set_key(ctx) != 0)
return blkcipher_walk_done(desc, walk, -EIO);
memcpy(param.key, ctx->pk.protkey, MAXPROTKEYSIZE);
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index f3e006b..c88ed39 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1272,4 +1272,8 @@ void intel_pmu_lbr_init_knl(void)
x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
x86_pmu.lbr_sel_map = snb_lbr_sel_map;
+
+ /* Knights Landing does have MISPREDICT bit */
+ if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_LIP)
+ x86_pmu.intel_cap.lbr_format = LBR_FORMAT_EIP_FLAGS;
}
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index 24c6cf5..60d0f90 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -19,9 +19,6 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
{
-#ifdef CONFIG_PAGE_TABLE_ISOLATION
- pmd.pud.p4d.pgd = pti_set_user_pgtbl(&pmdp->pud.p4d.pgd, pmd.pud.p4d.pgd);
-#endif
*pmdp = pmd;
}
@@ -61,9 +58,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
#ifdef CONFIG_SMP
static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
{
-#ifdef CONFIG_PAGE_TABLE_ISOLATION
- pti_set_user_pgtbl(&xp->pud.p4d.pgd, __pgd(0));
-#endif
return __pmd(xchg((pmdval_t *)xp, 0));
}
#else
@@ -73,9 +67,6 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
#ifdef CONFIG_SMP
static inline pud_t native_pudp_get_and_clear(pud_t *xp)
{
-#ifdef CONFIG_PAGE_TABLE_ISOLATION
- pti_set_user_pgtbl(&xp->p4d.pgd, __pgd(0));
-#endif
return __pud(xchg((pudval_t *)xp, 0));
}
#else
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index ec00d1f..f7151cd 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1640,6 +1640,7 @@ static int do_open(struct inode *inode, struct file *filp)
return 0;
}
+#ifdef CONFIG_PROC_FS
static int proc_apm_show(struct seq_file *m, void *v)
{
unsigned short bx;
@@ -1719,6 +1720,7 @@ static int proc_apm_show(struct seq_file *m, void *v)
units);
return 0;
}
+#endif
static int apm(void *unused)
{
diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c
index f260e45..e8c8c5d 100644
--- a/arch/x86/kernel/eisa.c
+++ b/arch/x86/kernel/eisa.c
@@ -7,11 +7,17 @@
#include <linux/eisa.h>
#include <linux/io.h>
+#include <xen/xen.h>
+
static __init int eisa_bus_probe(void)
{
- void __iomem *p = ioremap(0x0FFFD9, 4);
+ void __iomem *p;
- if (readl(p) == 'E' + ('I'<<8) + ('S'<<16) + ('A'<<24))
+ if (xen_pv_domain() && !xen_initial_domain())
+ return 0;
+
+ p = ioremap(0x0FFFD9, 4);
+ if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24))
EISA_bus = 1;
iounmap(p);
return 0;
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 12cbe2b..738bf42 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -111,8 +111,10 @@ int arch_register_cpu(int num)
/*
* Currently CPU0 is only hotpluggable on Intel platforms. Other
* vendors can add hotplug support later.
+ * Xen PV guests don't support CPU0 hotplug at all.
*/
- if (c->x86_vendor != X86_VENDOR_INTEL)
+ if (c->x86_vendor != X86_VENDOR_INTEL ||
+ boot_cpu_has(X86_FEATURE_XENPV))
cpu0_hotpluggable = 0;
/*
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 05ca142..9959657 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -85,10 +85,9 @@ pgd_t * __init efi_call_phys_prolog(void)
void __init efi_call_phys_epilog(pgd_t *save_pgd)
{
+ load_fixmap_gdt(0);
load_cr3(save_pgd);
__flush_tlb_all();
-
- load_fixmap_gdt(0);
}
void __init efi_runtime_update_mappings(void)
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 04d038f..b9ad83a 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -4,6 +4,7 @@
config XTENSA
def_bool y
+ select ARCH_HAS_SG_CHAIN
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_COHERENT_DMA_MMAP if !MMU
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 295c120..d67e30fa 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -64,11 +64,7 @@
vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
-ifeq ($(KBUILD_SRC),)
-KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
-else
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
-endif
KBUILD_DEFCONFIG := iss_defconfig
diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
index f4bbb28..58709e8 100644
--- a/arch/xtensa/platforms/iss/setup.c
+++ b/arch/xtensa/platforms/iss/setup.c
@@ -78,23 +78,28 @@ static struct notifier_block iss_panic_block = {
void __init platform_setup(char **p_cmdline)
{
+ static void *argv[COMMAND_LINE_SIZE / sizeof(void *)] __initdata;
+ static char cmdline[COMMAND_LINE_SIZE] __initdata;
int argc = simc_argc();
int argv_size = simc_argv_size();
if (argc > 1) {
- void **argv = alloc_bootmem(argv_size);
- char *cmdline = alloc_bootmem(argv_size);
- int i;
+ if (argv_size > sizeof(argv)) {
+ pr_err("%s: command line too long: argv_size = %d\n",
+ __func__, argv_size);
+ } else {
+ int i;
- cmdline[0] = 0;
- simc_argv((void *)argv);
+ cmdline[0] = 0;
+ simc_argv((void *)argv);
- for (i = 1; i < argc; ++i) {
- if (i > 1)
- strcat(cmdline, " ");
- strcat(cmdline, argv[i]);
+ for (i = 1; i < argc; ++i) {
+ if (i > 1)
+ strcat(cmdline, " ");
+ strcat(cmdline, argv[i]);
+ }
+ *p_cmdline = cmdline;
}
- *p_cmdline = cmdline;
}
atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block);
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index c19f907..c630e02 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1510,8 +1510,10 @@ int blkcg_policy_register(struct blkcg_policy *pol)
for (i = 0; i < BLKCG_MAX_POLS; i++)
if (!blkcg_policy[i])
break;
- if (i >= BLKCG_MAX_POLS)
+ if (i >= BLKCG_MAX_POLS) {
+ pr_warn("blkcg_policy_register: BLKCG_MAX_POLS too small\n");
goto err_unlock;
+ }
/* Make sure cpd/pd_alloc_fn and cpd/pd_free_fn in pairs */
if ((!pol->cpd_alloc_fn ^ !pol->cpd_free_fn) ||
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 3f3b7b2..64fd96e 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -332,6 +332,35 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
return vma ? -ENOMEM : -ESRCH;
}
+
+static inline void binder_alloc_set_vma(struct binder_alloc *alloc,
+ struct vm_area_struct *vma)
+{
+ if (vma)
+ alloc->vma_vm_mm = vma->vm_mm;
+ /*
+ * If we see alloc->vma is not NULL, buffer data structures set up
+ * completely. Look at smp_rmb side binder_alloc_get_vma.
+ * We also want to guarantee new alloc->vma_vm_mm is always visible
+ * if alloc->vma is set.
+ */
+ smp_wmb();
+ alloc->vma = vma;
+}
+
+static inline struct vm_area_struct *binder_alloc_get_vma(
+ struct binder_alloc *alloc)
+{
+ struct vm_area_struct *vma = NULL;
+
+ if (alloc->vma) {
+ /* Look at description in binder_alloc_set_vma */
+ smp_rmb();
+ vma = alloc->vma;
+ }
+ return vma;
+}
+
static struct binder_buffer *binder_alloc_new_buf_locked(
struct binder_alloc *alloc,
size_t data_size,
@@ -348,7 +377,7 @@ static struct binder_buffer *binder_alloc_new_buf_locked(
size_t size, data_offsets_size;
int ret;
- if (alloc->vma == NULL) {
+ if (!binder_alloc_get_vma(alloc)) {
binder_alloc_debug(BINDER_DEBUG_USER_ERROR,
"%d: binder_alloc_buf, no vma\n",
alloc->pid);
@@ -723,9 +752,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
buffer->free = 1;
binder_insert_free_buffer(alloc, buffer);
alloc->free_async_space = alloc->buffer_size / 2;
- barrier();
- alloc->vma = vma;
- alloc->vma_vm_mm = vma->vm_mm;
+ binder_alloc_set_vma(alloc, vma);
mmgrab(alloc->vma_vm_mm);
return 0;
@@ -754,10 +781,10 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc)
int buffers, page_count;
struct binder_buffer *buffer;
- BUG_ON(alloc->vma);
-
buffers = 0;
mutex_lock(&alloc->mutex);
+ BUG_ON(alloc->vma);
+
while ((n = rb_first(&alloc->allocated_buffers))) {
buffer = rb_entry(n, struct binder_buffer, rb_node);
@@ -900,7 +927,7 @@ int binder_alloc_get_allocated_count(struct binder_alloc *alloc)
*/
void binder_alloc_vma_close(struct binder_alloc *alloc)
{
- WRITE_ONCE(alloc->vma, NULL);
+ binder_alloc_set_vma(alloc, NULL);
}
/**
@@ -935,7 +962,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
index = page - alloc->pages;
page_addr = (uintptr_t)alloc->buffer + index * PAGE_SIZE;
- vma = alloc->vma;
+ vma = binder_alloc_get_vma(alloc);
if (vma) {
if (!mmget_not_zero(alloc->vma_vm_mm))
goto err_mmget;
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 0943e70..b3c0498 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -209,21 +209,24 @@ static struct fw_priv *__lookup_fw_priv(const char *fw_name)
static int alloc_lookup_fw_priv(const char *fw_name,
struct firmware_cache *fwc,
struct fw_priv **fw_priv, void *dbuf,
- size_t size)
+ size_t size, enum fw_opt opt_flags)
{
struct fw_priv *tmp;
spin_lock(&fwc->lock);
- tmp = __lookup_fw_priv(fw_name);
- if (tmp) {
- kref_get(&tmp->ref);
- spin_unlock(&fwc->lock);
- *fw_priv = tmp;
- pr_debug("batched request - sharing the same struct fw_priv and lookup for multiple requests\n");
- return 1;
+ if (!(opt_flags & FW_OPT_NOCACHE)) {
+ tmp = __lookup_fw_priv(fw_name);
+ if (tmp) {
+ kref_get(&tmp->ref);
+ spin_unlock(&fwc->lock);
+ *fw_priv = tmp;
+ pr_debug("batched request - sharing the same struct fw_priv and lookup for multiple requests\n");
+ return 1;
+ }
}
+
tmp = __allocate_fw_priv(fw_name, fwc, dbuf, size);
- if (tmp)
+ if (tmp && !(opt_flags & FW_OPT_NOCACHE))
list_add(&tmp->list, &fwc->head);
spin_unlock(&fwc->lock);
@@ -493,7 +496,8 @@ int assign_fw(struct firmware *fw, struct device *device,
*/
static int
_request_firmware_prepare(struct firmware **firmware_p, const char *name,
- struct device *device, void *dbuf, size_t size)
+ struct device *device, void *dbuf, size_t size,
+ enum fw_opt opt_flags)
{
struct firmware *firmware;
struct fw_priv *fw_priv;
@@ -511,7 +515,8 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name,
return 0; /* assigned */
}
- ret = alloc_lookup_fw_priv(name, &fw_cache, &fw_priv, dbuf, size);
+ ret = alloc_lookup_fw_priv(name, &fw_cache, &fw_priv, dbuf, size,
+ opt_flags);
/*
* bind with 'priv' now to avoid warning in failure path
@@ -571,7 +576,8 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
goto out;
}
- ret = _request_firmware_prepare(&fw, name, device, buf, size);
+ ret = _request_firmware_prepare(&fw, name, device, buf, size,
+ opt_flags);
if (ret <= 0) /* error or already assigned */
goto out;
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h
index d81781f..34e0030 100644
--- a/drivers/block/null_blk.h
+++ b/drivers/block/null_blk.h
@@ -87,10 +87,10 @@ struct nullb {
#ifdef CONFIG_BLK_DEV_ZONED
int null_zone_init(struct nullb_device *dev);
void null_zone_exit(struct nullb_device *dev);
-blk_status_t null_zone_report(struct nullb *nullb,
- struct nullb_cmd *cmd);
-void null_zone_write(struct nullb_cmd *cmd);
-void null_zone_reset(struct nullb_cmd *cmd);
+blk_status_t null_zone_report(struct nullb *nullb, struct bio *bio);
+void null_zone_write(struct nullb_cmd *cmd, sector_t sector,
+ unsigned int nr_sectors);
+void null_zone_reset(struct nullb_cmd *cmd, sector_t sector);
#else
static inline int null_zone_init(struct nullb_device *dev)
{
@@ -98,11 +98,14 @@ static inline int null_zone_init(struct nullb_device *dev)
}
static inline void null_zone_exit(struct nullb_device *dev) {}
static inline blk_status_t null_zone_report(struct nullb *nullb,
- struct nullb_cmd *cmd)
+ struct bio *bio)
{
return BLK_STS_NOTSUPP;
}
-static inline void null_zone_write(struct nullb_cmd *cmd) {}
-static inline void null_zone_reset(struct nullb_cmd *cmd) {}
+static inline void null_zone_write(struct nullb_cmd *cmd, sector_t sector,
+ unsigned int nr_sectors)
+{
+}
+static inline void null_zone_reset(struct nullb_cmd *cmd, sector_t sector) {}
#endif /* CONFIG_BLK_DEV_ZONED */
#endif /* __NULL_BLK_H */
diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c
index 6127e3f..093b614 100644
--- a/drivers/block/null_blk_main.c
+++ b/drivers/block/null_blk_main.c
@@ -1157,16 +1157,33 @@ static void null_restart_queue_async(struct nullb *nullb)
}
}
+static bool cmd_report_zone(struct nullb *nullb, struct nullb_cmd *cmd)
+{
+ struct nullb_device *dev = cmd->nq->dev;
+
+ if (dev->queue_mode == NULL_Q_BIO) {
+ if (bio_op(cmd->bio) == REQ_OP_ZONE_REPORT) {
+ cmd->error = null_zone_report(nullb, cmd->bio);
+ return true;
+ }
+ } else {
+ if (req_op(cmd->rq) == REQ_OP_ZONE_REPORT) {
+ cmd->error = null_zone_report(nullb, cmd->rq->bio);
+ return true;
+ }
+ }
+
+ return false;
+}
+
static blk_status_t null_handle_cmd(struct nullb_cmd *cmd)
{
struct nullb_device *dev = cmd->nq->dev;
struct nullb *nullb = dev->nullb;
int err = 0;
- if (req_op(cmd->rq) == REQ_OP_ZONE_REPORT) {
- cmd->error = null_zone_report(nullb, cmd);
+ if (cmd_report_zone(nullb, cmd))
goto out;
- }
if (test_bit(NULLB_DEV_FL_THROTTLED, &dev->flags)) {
struct request *rq = cmd->rq;
@@ -1234,10 +1251,24 @@ static blk_status_t null_handle_cmd(struct nullb_cmd *cmd)
cmd->error = errno_to_blk_status(err);
if (!cmd->error && dev->zoned) {
- if (req_op(cmd->rq) == REQ_OP_WRITE)
- null_zone_write(cmd);
- else if (req_op(cmd->rq) == REQ_OP_ZONE_RESET)
- null_zone_reset(cmd);
+ sector_t sector;
+ unsigned int nr_sectors;
+ int op;
+
+ if (dev->queue_mode == NULL_Q_BIO) {
+ op = bio_op(cmd->bio);
+ sector = cmd->bio->bi_iter.bi_sector;
+ nr_sectors = cmd->bio->bi_iter.bi_size >> 9;
+ } else {
+ op = req_op(cmd->rq);
+ sector = blk_rq_pos(cmd->rq);
+ nr_sectors = blk_rq_sectors(cmd->rq);
+ }
+
+ if (op == REQ_OP_WRITE)
+ null_zone_write(cmd, sector, nr_sectors);
+ else if (op == REQ_OP_ZONE_RESET)
+ null_zone_reset(cmd, sector);
}
out:
/* Complete IO by inline, softirq or timer */
diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c
index a979ca0..7c6b86d 100644
--- a/drivers/block/null_blk_zoned.c
+++ b/drivers/block/null_blk_zoned.c
@@ -48,8 +48,8 @@ void null_zone_exit(struct nullb_device *dev)
kvfree(dev->zones);
}
-static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq,
- unsigned int zno, unsigned int nr_zones)
+static void null_zone_fill_bio(struct nullb_device *dev, struct bio *bio,
+ unsigned int zno, unsigned int nr_zones)
{
struct blk_zone_report_hdr *hdr = NULL;
struct bio_vec bvec;
@@ -57,7 +57,7 @@ static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq,
void *addr;
unsigned int zones_to_cpy;
- bio_for_each_segment(bvec, rq->bio, iter) {
+ bio_for_each_segment(bvec, bio, iter) {
addr = kmap_atomic(bvec.bv_page);
zones_to_cpy = bvec.bv_len / sizeof(struct blk_zone);
@@ -84,29 +84,24 @@ static void null_zone_fill_rq(struct nullb_device *dev, struct request *rq,
}
}
-blk_status_t null_zone_report(struct nullb *nullb,
- struct nullb_cmd *cmd)
+blk_status_t null_zone_report(struct nullb *nullb, struct bio *bio)
{
struct nullb_device *dev = nullb->dev;
- struct request *rq = cmd->rq;
- unsigned int zno = null_zone_no(dev, blk_rq_pos(rq));
+ unsigned int zno = null_zone_no(dev, bio->bi_iter.bi_sector);
unsigned int nr_zones = dev->nr_zones - zno;
- unsigned int max_zones = (blk_rq_bytes(rq) /
- sizeof(struct blk_zone)) - 1;
+ unsigned int max_zones;
+ max_zones = (bio->bi_iter.bi_size / sizeof(struct blk_zone)) - 1;
nr_zones = min_t(unsigned int, nr_zones, max_zones);
-
- null_zone_fill_rq(nullb->dev, rq, zno, nr_zones);
+ null_zone_fill_bio(nullb->dev, bio, zno, nr_zones);
return BLK_STS_OK;
}
-void null_zone_write(struct nullb_cmd *cmd)
+void null_zone_write(struct nullb_cmd *cmd, sector_t sector,
+ unsigned int nr_sectors)
{
struct nullb_device *dev = cmd->nq->dev;
- struct request *rq = cmd->rq;
- sector_t sector = blk_rq_pos(rq);
- unsigned int rq_sectors = blk_rq_sectors(rq);
unsigned int zno = null_zone_no(dev, sector);
struct blk_zone *zone = &dev->zones[zno];
@@ -118,7 +113,7 @@ void null_zone_write(struct nullb_cmd *cmd)
case BLK_ZONE_COND_EMPTY:
case BLK_ZONE_COND_IMP_OPEN:
/* Writes must be at the write pointer position */
- if (blk_rq_pos(rq) != zone->wp) {
+ if (sector != zone->wp) {
cmd->error = BLK_STS_IOERR;
break;
}
@@ -126,7 +121,7 @@ void null_zone_write(struct nullb_cmd *cmd)
if (zone->cond == BLK_ZONE_COND_EMPTY)
zone->cond = BLK_ZONE_COND_IMP_OPEN;
- zone->wp += rq_sectors;
+ zone->wp += nr_sectors;
if (zone->wp == zone->start + zone->len)
zone->cond = BLK_ZONE_COND_FULL;
break;
@@ -137,11 +132,10 @@ void null_zone_write(struct nullb_cmd *cmd)
}
}
-void null_zone_reset(struct nullb_cmd *cmd)
+void null_zone_reset(struct nullb_cmd *cmd, sector_t sector)
{
struct nullb_device *dev = cmd->nq->dev;
- struct request *rq = cmd->rq;
- unsigned int zno = null_zone_no(dev, blk_rq_pos(rq));
+ unsigned int zno = null_zone_no(dev, sector);
struct blk_zone *zone = &dev->zones[zno];
zone->cond = BLK_ZONE_COND_EMPTY;
diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c
index a339766..97d6856c 100644
--- a/drivers/char/ipmi/ipmi_bt_sm.c
+++ b/drivers/char/ipmi/ipmi_bt_sm.c
@@ -59,8 +59,6 @@ enum bt_states {
BT_STATE_RESET3,
BT_STATE_RESTART,
BT_STATE_PRINTME,
- BT_STATE_CAPABILITIES_BEGIN,
- BT_STATE_CAPABILITIES_END,
BT_STATE_LONG_BUSY /* BT doesn't get hosed :-) */
};
@@ -86,7 +84,6 @@ struct si_sm_data {
int error_retries; /* end of "common" fields */
int nonzero_status; /* hung BMCs stay all 0 */
enum bt_states complete; /* to divert the state machine */
- int BT_CAP_outreqs;
long BT_CAP_req2rsp;
int BT_CAP_retries; /* Recommended retries */
};
@@ -137,8 +134,6 @@ static char *state2txt(unsigned char state)
case BT_STATE_RESET3: return("RESET3");
case BT_STATE_RESTART: return("RESTART");
case BT_STATE_LONG_BUSY: return("LONG_BUSY");
- case BT_STATE_CAPABILITIES_BEGIN: return("CAP_BEGIN");
- case BT_STATE_CAPABILITIES_END: return("CAP_END");
}
return("BAD STATE");
}
@@ -185,7 +180,6 @@ static unsigned int bt_init_data(struct si_sm_data *bt, struct si_sm_io *io)
bt->complete = BT_STATE_IDLE; /* end here */
bt->BT_CAP_req2rsp = BT_NORMAL_TIMEOUT * USEC_PER_SEC;
bt->BT_CAP_retries = BT_NORMAL_RETRY_LIMIT;
- /* BT_CAP_outreqs == zero is a flag to read BT Capabilities */
return 3; /* We claim 3 bytes of space; ought to check SPMI table */
}
@@ -451,7 +445,7 @@ static enum si_sm_result error_recovery(struct si_sm_data *bt,
static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
{
- unsigned char status, BT_CAP[8];
+ unsigned char status;
static enum bt_states last_printed = BT_STATE_PRINTME;
int i;
@@ -504,12 +498,6 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
if (status & BT_H_BUSY) /* clear a leftover H_BUSY */
BT_CONTROL(BT_H_BUSY);
- bt->timeout = bt->BT_CAP_req2rsp;
-
- /* Read BT capabilities if it hasn't been done yet */
- if (!bt->BT_CAP_outreqs)
- BT_STATE_CHANGE(BT_STATE_CAPABILITIES_BEGIN,
- SI_SM_CALL_WITHOUT_DELAY);
BT_SI_SM_RETURN(SI_SM_IDLE);
case BT_STATE_XACTION_START:
@@ -614,37 +602,6 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
BT_STATE_CHANGE(BT_STATE_XACTION_START,
SI_SM_CALL_WITH_DELAY);
- /*
- * Get BT Capabilities, using timing of upper level state machine.
- * Set outreqs to prevent infinite loop on timeout.
- */
- case BT_STATE_CAPABILITIES_BEGIN:
- bt->BT_CAP_outreqs = 1;
- {
- unsigned char GetBT_CAP[] = { 0x18, 0x36 };
- bt->state = BT_STATE_IDLE;
- bt_start_transaction(bt, GetBT_CAP, sizeof(GetBT_CAP));
- }
- bt->complete = BT_STATE_CAPABILITIES_END;
- BT_STATE_CHANGE(BT_STATE_XACTION_START,
- SI_SM_CALL_WITH_DELAY);
-
- case BT_STATE_CAPABILITIES_END:
- i = bt_get_result(bt, BT_CAP, sizeof(BT_CAP));
- bt_init_data(bt, bt->io);
- if ((i == 8) && !BT_CAP[2]) {
- bt->BT_CAP_outreqs = BT_CAP[3];
- bt->BT_CAP_req2rsp = BT_CAP[6] * USEC_PER_SEC;
- bt->BT_CAP_retries = BT_CAP[7];
- } else
- printk(KERN_WARNING "IPMI BT: using default values\n");
- if (!bt->BT_CAP_outreqs)
- bt->BT_CAP_outreqs = 1;
- printk(KERN_WARNING "IPMI BT: req2rsp=%ld secs retries=%d\n",
- bt->BT_CAP_req2rsp / USEC_PER_SEC, bt->BT_CAP_retries);
- bt->timeout = bt->BT_CAP_req2rsp;
- return SI_SM_CALL_WITHOUT_DELAY;
-
default: /* should never occur */
return error_recovery(bt,
status,
@@ -655,6 +612,11 @@ static enum si_sm_result bt_event(struct si_sm_data *bt, long time)
static int bt_detect(struct si_sm_data *bt)
{
+ unsigned char GetBT_CAP[] = { 0x18, 0x36 };
+ unsigned char BT_CAP[8];
+ enum si_sm_result smi_result;
+ int rv;
+
/*
* It's impossible for the BT status and interrupt registers to be
* all 1's, (assuming a properly functioning, self-initialized BMC)
@@ -665,6 +627,48 @@ static int bt_detect(struct si_sm_data *bt)
if ((BT_STATUS == 0xFF) && (BT_INTMASK_R == 0xFF))
return 1;
reset_flags(bt);
+
+ /*
+ * Try getting the BT capabilities here.
+ */
+ rv = bt_start_transaction(bt, GetBT_CAP, sizeof(GetBT_CAP));
+ if (rv) {
+ dev_warn(bt->io->dev,
+ "Can't start capabilities transaction: %d\n", rv);
+ goto out_no_bt_cap;
+ }
+
+ smi_result = SI_SM_CALL_WITHOUT_DELAY;
+ for (;;) {
+ if (smi_result == SI_SM_CALL_WITH_DELAY ||
+ smi_result == SI_SM_CALL_WITH_TICK_DELAY) {
+ schedule_timeout_uninterruptible(1);
+ smi_result = bt_event(bt, jiffies_to_usecs(1));
+ } else if (smi_result == SI_SM_CALL_WITHOUT_DELAY) {
+ smi_result = bt_event(bt, 0);
+ } else
+ break;
+ }
+
+ rv = bt_get_result(bt, BT_CAP, sizeof(BT_CAP));
+ bt_init_data(bt, bt->io);
+ if (rv < 8) {
+ dev_warn(bt->io->dev, "bt cap response too short: %d\n", rv);
+ goto out_no_bt_cap;
+ }
+
+ if (BT_CAP[2]) {
+ dev_warn(bt->io->dev, "Error fetching bt cap: %x\n", BT_CAP[2]);
+out_no_bt_cap:
+ dev_warn(bt->io->dev, "using default values\n");
+ } else {
+ bt->BT_CAP_req2rsp = BT_CAP[6] * USEC_PER_SEC;
+ bt->BT_CAP_retries = BT_CAP[7];
+ }
+
+ dev_info(bt->io->dev, "req2rsp=%ld secs retries=%d\n",
+ bt->BT_CAP_req2rsp / USEC_PER_SEC, bt->BT_CAP_retries);
+
return 0;
}
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 51832b8..7fc9612 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -3381,39 +3381,45 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
rv = handlers->start_processing(send_info, intf);
if (rv)
- goto out;
+ goto out_err;
rv = __bmc_get_device_id(intf, NULL, &id, NULL, NULL, i);
if (rv) {
dev_err(si_dev, "Unable to get the device id: %d\n", rv);
- goto out;
+ goto out_err_started;
}
mutex_lock(&intf->bmc_reg_mutex);
rv = __scan_channels(intf, &id);
mutex_unlock(&intf->bmc_reg_mutex);
+ if (rv)
+ goto out_err_bmc_reg;
- out:
- if (rv) {
- ipmi_bmc_unregister(intf);
- list_del_rcu(&intf->link);
- mutex_unlock(&ipmi_interfaces_mutex);
- synchronize_srcu(&ipmi_interfaces_srcu);
- cleanup_srcu_struct(&intf->users_srcu);
- kref_put(&intf->refcount, intf_free);
- } else {
- /*
- * Keep memory order straight for RCU readers. Make
- * sure everything else is committed to memory before
- * setting intf_num to mark the interface valid.
- */
- smp_wmb();
- intf->intf_num = i;
- mutex_unlock(&ipmi_interfaces_mutex);
+ /*
+ * Keep memory order straight for RCU readers. Make
+ * sure everything else is committed to memory before
+ * setting intf_num to mark the interface valid.
+ */
+ smp_wmb();
+ intf->intf_num = i;
+ mutex_unlock(&ipmi_interfaces_mutex);
- /* After this point the interface is legal to use. */
- call_smi_watchers(i, intf->si_dev);
- }
+ /* After this point the interface is legal to use. */
+ call_smi_watchers(i, intf->si_dev);
+
+ return 0;
+
+ out_err_bmc_reg:
+ ipmi_bmc_unregister(intf);
+ out_err_started:
+ if (intf->handlers->shutdown)
+ intf->handlers->shutdown(intf->send_info);
+ out_err:
+ list_del_rcu(&intf->link);
+ mutex_unlock(&ipmi_interfaces_mutex);
+ synchronize_srcu(&ipmi_interfaces_srcu);
+ cleanup_srcu_struct(&intf->users_srcu);
+ kref_put(&intf->refcount, intf_free);
return rv;
}
@@ -3504,7 +3510,8 @@ void ipmi_unregister_smi(struct ipmi_smi *intf)
}
srcu_read_unlock(&intf->users_srcu, index);
- intf->handlers->shutdown(intf->send_info);
+ if (intf->handlers->shutdown)
+ intf->handlers->shutdown(intf->send_info);
cleanup_smi_msgs(intf);
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 90ec010b..5faa917 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -2083,18 +2083,9 @@ static int try_smi_init(struct smi_info *new_smi)
si_to_str[new_smi->io.si_type]);
WARN_ON(new_smi->io.dev->init_name != NULL);
+
+ out_err:
kfree(init_name);
-
- return 0;
-
-out_err:
- if (new_smi->intf) {
- ipmi_unregister_smi(new_smi->intf);
- new_smi->intf = NULL;
- }
-
- kfree(init_name);
-
return rv;
}
@@ -2227,6 +2218,8 @@ static void shutdown_smi(void *send_info)
kfree(smi_info->si_sm);
smi_info->si_sm = NULL;
+
+ smi_info->intf = NULL;
}
/*
@@ -2240,10 +2233,8 @@ static void cleanup_one_si(struct smi_info *smi_info)
list_del(&smi_info->link);
- if (smi_info->intf) {
+ if (smi_info->intf)
ipmi_unregister_smi(smi_info->intf);
- smi_info->intf = NULL;
- }
if (smi_info->pdev) {
if (smi_info->pdev_registered)
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 18e4650..29e67a80 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -181,6 +181,8 @@ struct ssif_addr_info {
struct device *dev;
struct i2c_client *client;
+ struct i2c_client *added_client;
+
struct mutex clients_mutex;
struct list_head clients;
@@ -1214,18 +1216,11 @@ static void shutdown_ssif(void *send_info)
complete(&ssif_info->wake_thread);
kthread_stop(ssif_info->thread);
}
-
- /*
- * No message can be outstanding now, we have removed the
- * upper layer and it permitted us to do so.
- */
- kfree(ssif_info);
}
static int ssif_remove(struct i2c_client *client)
{
struct ssif_info *ssif_info = i2c_get_clientdata(client);
- struct ipmi_smi *intf;
struct ssif_addr_info *addr_info;
if (!ssif_info)
@@ -1235,9 +1230,7 @@ static int ssif_remove(struct i2c_client *client)
* After this point, we won't deliver anything asychronously
* to the message handler. We can unregister ourself.
*/
- intf = ssif_info->intf;
- ssif_info->intf = NULL;
- ipmi_unregister_smi(intf);
+ ipmi_unregister_smi(ssif_info->intf);
list_for_each_entry(addr_info, &ssif_infos, link) {
if (addr_info->client == client) {
@@ -1246,6 +1239,8 @@ static int ssif_remove(struct i2c_client *client)
}
}
+ kfree(ssif_info);
+
return 0;
}
@@ -1648,15 +1643,9 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
out:
if (rv) {
- /*
- * Note that if addr_info->client is assigned, we
- * leave it. The i2c client hangs around even if we
- * return a failure here, and the failure here is not
- * propagated back to the i2c code. This seems to be
- * design intent, strange as it may be. But if we
- * don't leave it, ssif_platform_remove will not remove
- * the client like it should.
- */
+ if (addr_info)
+ addr_info->client = NULL;
+
dev_err(&client->dev, "Unable to start IPMI SSIF: %d\n", rv);
kfree(ssif_info);
}
@@ -1676,7 +1665,8 @@ static int ssif_adapter_handler(struct device *adev, void *opaque)
if (adev->type != &i2c_adapter_type)
return 0;
- i2c_new_device(to_i2c_adapter(adev), &addr_info->binfo);
+ addr_info->added_client = i2c_new_device(to_i2c_adapter(adev),
+ &addr_info->binfo);
if (!addr_info->adapter_name)
return 1; /* Only try the first I2C adapter by default. */
@@ -1849,7 +1839,7 @@ static int ssif_platform_remove(struct platform_device *dev)
return 0;
mutex_lock(&ssif_infos_mutex);
- i2c_unregister_device(addr_info->client);
+ i2c_unregister_device(addr_info->added_client);
list_del(&addr_info->link);
kfree(addr_info);
diff --git a/drivers/char/ipmi/kcs_bmc.c b/drivers/char/ipmi/kcs_bmc.c
index bb882ab1..e6124bd 100644
--- a/drivers/char/ipmi/kcs_bmc.c
+++ b/drivers/char/ipmi/kcs_bmc.c
@@ -16,6 +16,8 @@
#include "kcs_bmc.h"
+#define DEVICE_NAME "ipmi-kcs"
+
#define KCS_MSG_BUFSIZ 1000
#define KCS_ZERO_DATA 0
@@ -429,8 +431,6 @@ struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, u32 channel)
if (!kcs_bmc)
return NULL;
- dev_set_name(dev, "ipmi-kcs%u", channel);
-
spin_lock_init(&kcs_bmc->lock);
kcs_bmc->channel = channel;
@@ -444,7 +444,8 @@ struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, u32 channel)
return NULL;
kcs_bmc->miscdev.minor = MISC_DYNAMIC_MINOR;
- kcs_bmc->miscdev.name = dev_name(dev);
+ kcs_bmc->miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "%s%u",
+ DEVICE_NAME, channel);
kcs_bmc->miscdev.fops = &kcs_bmc_fops;
return kcs_bmc;
diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
index b76cb17..adfd316 100644
--- a/drivers/dma/mic_x100_dma.c
+++ b/drivers/dma/mic_x100_dma.c
@@ -639,7 +639,7 @@ static struct mic_dma_device *mic_dma_dev_reg(struct mbus_device *mbdev,
int ret;
struct device *dev = &mbdev->dev;
- mic_dma_dev = kzalloc(sizeof(*mic_dma_dev), GFP_KERNEL);
+ mic_dma_dev = devm_kzalloc(dev, sizeof(*mic_dma_dev), GFP_KERNEL);
if (!mic_dma_dev) {
ret = -ENOMEM;
goto alloc_error;
@@ -664,7 +664,6 @@ static struct mic_dma_device *mic_dma_dev_reg(struct mbus_device *mbdev,
reg_error:
mic_dma_uninit(mic_dma_dev);
init_error:
- kfree(mic_dma_dev);
mic_dma_dev = NULL;
alloc_error:
dev_err(dev, "Error at %s %d ret=%d\n", __func__, __LINE__, ret);
@@ -674,7 +673,6 @@ static struct mic_dma_device *mic_dma_dev_reg(struct mbus_device *mbdev,
static void mic_dma_dev_unreg(struct mic_dma_device *mic_dma_dev)
{
mic_dma_uninit(mic_dma_dev);
- kfree(mic_dma_dev);
}
/* DEBUGFS CODE */
diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
index fc9fd2d..0b84053 100644
--- a/drivers/fpga/dfl-fme-pr.c
+++ b/drivers/fpga/dfl-fme-pr.c
@@ -420,7 +420,7 @@ static int pr_mgmt_init(struct platform_device *pdev,
/* Create region for each port */
fme_region = dfl_fme_create_region(pdata, mgr,
fme_br->br, i);
- if (!fme_region) {
+ if (IS_ERR(fme_region)) {
ret = PTR_ERR(fme_region);
goto destroy_region;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index b6e9df1..b31d121 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -39,6 +39,7 @@ static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p,
{
struct drm_gem_object *gobj;
unsigned long size;
+ int r;
gobj = drm_gem_object_lookup(p->filp, data->handle);
if (gobj == NULL)
@@ -50,20 +51,26 @@ static int amdgpu_cs_user_fence_chunk(struct amdgpu_cs_parser *p,
p->uf_entry.tv.shared = true;
p->uf_entry.user_pages = NULL;
+ drm_gem_object_put_unlocked(gobj);
+
size = amdgpu_bo_size(p->uf_entry.robj);
- if (size != PAGE_SIZE || (data->offset + 8) > size)
- return -EINVAL;
+ if (size != PAGE_SIZE || (data->offset + 8) > size) {
+ r = -EINVAL;
+ goto error_unref;
+ }
+
+ if (amdgpu_ttm_tt_get_usermm(p->uf_entry.robj->tbo.ttm)) {
+ r = -EINVAL;
+ goto error_unref;
+ }
*offset = data->offset;
- drm_gem_object_put_unlocked(gobj);
-
- if (amdgpu_ttm_tt_get_usermm(p->uf_entry.robj->tbo.ttm)) {
- amdgpu_bo_unref(&p->uf_entry.robj);
- return -EINVAL;
- }
-
return 0;
+
+error_unref:
+ amdgpu_bo_unref(&p->uf_entry.robj);
+ return r;
}
static int amdgpu_cs_bo_handles_chunk(struct amdgpu_cs_parser *p,
@@ -1262,10 +1269,10 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
error_abort:
dma_fence_put(&job->base.s_fence->finished);
job->base.s_fence = NULL;
+ amdgpu_mn_unlock(p->mn);
error_unlock:
amdgpu_job_free(job);
- amdgpu_mn_unlock(p->mn);
return r;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 8ab5ccb..39bf2ce 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2063,6 +2063,7 @@ static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev)
static enum amd_ip_block_type ip_order[] = {
AMD_IP_BLOCK_TYPE_GMC,
AMD_IP_BLOCK_TYPE_COMMON,
+ AMD_IP_BLOCK_TYPE_PSP,
AMD_IP_BLOCK_TYPE_IH,
};
@@ -2093,7 +2094,6 @@ static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev)
static enum amd_ip_block_type ip_order[] = {
AMD_IP_BLOCK_TYPE_SMC,
- AMD_IP_BLOCK_TYPE_PSP,
AMD_IP_BLOCK_TYPE_DCE,
AMD_IP_BLOCK_TYPE_GFX,
AMD_IP_BLOCK_TYPE_SDMA,
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index e7ca462..7c3b634 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -70,6 +70,7 @@ static const struct soc15_reg_golden golden_settings_sdma_4[] = {
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0100, 0x00000100),
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0),
+ SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_WATERMK, 0xfc000000, 0x00000000),
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CHICKEN_BITS, 0xfe931f07, 0x02831f07),
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_CLK_CTRL, 0xffffffff, 0x3f000100),
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_GFX_IB_CNTL, 0x800f0100, 0x00000100),
@@ -81,7 +82,8 @@ static const struct soc15_reg_golden golden_settings_sdma_4[] = {
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_IB_CNTL, 0x800f0100, 0x00000100),
SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
- SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0)
+ SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_PAGE, 0x000003ff, 0x000003c0),
+ SOC15_REG_GOLDEN_VALUE(SDMA1, 0, mmSDMA1_UTCL1_WATERMK, 0xfc000000, 0x00000000)
};
static const struct soc15_reg_golden golden_settings_sdma_vg10[] = {
@@ -109,7 +111,8 @@ static const struct soc15_reg_golden golden_settings_sdma_4_1[] =
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_IB_CNTL, 0x800f0111, 0x00000100),
SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
- SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0)
+ SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_PAGE, 0x000003ff, 0x000003c0),
+ SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_WATERMK, 0xfc000000, 0x00000000)
};
static const struct soc15_reg_golden golden_settings_sdma_4_2[] =
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index a45f46d..c7afee3 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -32,6 +32,7 @@
#include <linux/device.h>
#include <linux/mm.h>
#include <linux/mmu_context.h>
+#include <linux/sched/mm.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/rbtree.h>
@@ -1792,16 +1793,21 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa,
info = (struct kvmgt_guest_info *)handle;
kvm = info->kvm;
- if (kthread)
+ if (kthread) {
+ if (!mmget_not_zero(kvm->mm))
+ return -EFAULT;
use_mm(kvm->mm);
+ }
idx = srcu_read_lock(&kvm->srcu);
ret = write ? kvm_write_guest(kvm, gpa, buf, len) :
kvm_read_guest(kvm, gpa, buf, len);
srcu_read_unlock(&kvm->srcu, idx);
- if (kthread)
+ if (kthread) {
unuse_mm(kvm->mm);
+ mmput(kvm->mm);
+ }
return ret;
}
diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
index fa75a2e..b0d3a43 100644
--- a/drivers/gpu/drm/i915/gvt/opregion.c
+++ b/drivers/gpu/drm/i915/gvt/opregion.c
@@ -42,8 +42,6 @@
#define DEVICE_TYPE_EFP3 0x20
#define DEVICE_TYPE_EFP4 0x10
-#define DEV_SIZE 38
-
struct opregion_header {
u8 signature[16];
u32 size;
@@ -63,6 +61,10 @@ struct bdb_data_header {
u16 size; /* data size */
} __packed;
+/* For supporting windows guest with opregion, here hardcode the emulated
+ * bdb header version as '186', and the corresponding child_device_config
+ * length should be '33' but not '38'.
+ */
struct efp_child_device_config {
u16 handle;
u16 device_type;
@@ -109,12 +111,6 @@ struct efp_child_device_config {
u8 mipi_bridge_type; /* 171 */
u16 device_class_ext;
u8 dvo_function;
- u8 dp_usb_type_c:1; /* 195 */
- u8 skip6:7;
- u8 dp_usb_type_c_2x_gpio_index; /* 195 */
- u16 dp_usb_type_c_2x_gpio_pin; /* 195 */
- u8 iboost_dp:4; /* 196 */
- u8 iboost_hdmi:4; /* 196 */
} __packed;
struct vbt {
@@ -155,7 +151,7 @@ static void virt_vbt_generation(struct vbt *v)
v->header.bdb_offset = offsetof(struct vbt, bdb_header);
strcpy(&v->bdb_header.signature[0], "BIOS_DATA_BLOCK");
- v->bdb_header.version = 186; /* child_dev_size = 38 */
+ v->bdb_header.version = 186; /* child_dev_size = 33 */
v->bdb_header.header_size = sizeof(v->bdb_header);
v->bdb_header.bdb_size = sizeof(struct vbt) - sizeof(struct vbt_header)
@@ -169,11 +165,13 @@ static void virt_vbt_generation(struct vbt *v)
/* child device */
num_child = 4; /* each port has one child */
+ v->general_definitions.child_dev_size =
+ sizeof(struct efp_child_device_config);
v->general_definitions_header.id = BDB_GENERAL_DEFINITIONS;
/* size will include child devices */
v->general_definitions_header.size =
- sizeof(struct bdb_general_definitions) + num_child * DEV_SIZE;
- v->general_definitions.child_dev_size = DEV_SIZE;
+ sizeof(struct bdb_general_definitions) +
+ num_child * v->general_definitions.child_dev_size;
/* portA */
v->child0.handle = DEVICE_TYPE_EFP1;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4a3c8ee..d295109 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5079,10 +5079,14 @@ void hsw_disable_ips(const struct intel_crtc_state *crtc_state)
mutex_lock(&dev_priv->pcu_lock);
WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
mutex_unlock(&dev_priv->pcu_lock);
- /* wait for pcode to finish disabling IPS, which may take up to 42ms */
+ /*
+ * Wait for PCODE to finish disabling IPS. The BSpec specified
+ * 42ms timeout value leads to occasional timeouts so use 100ms
+ * instead.
+ */
if (intel_wait_for_register(dev_priv,
IPS_CTL, IPS_ENABLE, 0,
- 42))
+ 100))
DRM_ERROR("Timed out waiting for IPS disable\n");
} else {
I915_WRITE(IPS_CTL, 0);
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index c2f10d8..443dfae 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -181,8 +181,9 @@ struct intel_overlay {
u32 brightness, contrast, saturation;
u32 old_xscale, old_yscale;
/* register access */
- u32 flip_addr;
struct drm_i915_gem_object *reg_bo;
+ struct overlay_registers __iomem *regs;
+ u32 flip_addr;
/* flip handling */
struct i915_gem_active last_flip;
};
@@ -210,29 +211,6 @@ static void i830_overlay_clock_gating(struct drm_i915_private *dev_priv,
PCI_DEVFN(0, 0), I830_CLOCK_GATE, val);
}
-static struct overlay_registers __iomem *
-intel_overlay_map_regs(struct intel_overlay *overlay)
-{
- struct drm_i915_private *dev_priv = overlay->i915;
- struct overlay_registers __iomem *regs;
-
- if (OVERLAY_NEEDS_PHYSICAL(dev_priv))
- regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_handle->vaddr;
- else
- regs = io_mapping_map_wc(&dev_priv->ggtt.iomap,
- overlay->flip_addr,
- PAGE_SIZE);
-
- return regs;
-}
-
-static void intel_overlay_unmap_regs(struct intel_overlay *overlay,
- struct overlay_registers __iomem *regs)
-{
- if (!OVERLAY_NEEDS_PHYSICAL(overlay->i915))
- io_mapping_unmap(regs);
-}
-
static void intel_overlay_submit_request(struct intel_overlay *overlay,
struct i915_request *rq,
i915_gem_retire_fn retire)
@@ -784,13 +762,13 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
struct drm_i915_gem_object *new_bo,
struct put_image_params *params)
{
- int ret, tmp_width;
- struct overlay_registers __iomem *regs;
- bool scale_changed = false;
+ struct overlay_registers __iomem *regs = overlay->regs;
struct drm_i915_private *dev_priv = overlay->i915;
u32 swidth, swidthsw, sheight, ostride;
enum pipe pipe = overlay->crtc->pipe;
+ bool scale_changed = false;
struct i915_vma *vma;
+ int ret, tmp_width;
lockdep_assert_held(&dev_priv->drm.struct_mutex);
WARN_ON(!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
@@ -815,30 +793,19 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
if (!overlay->active) {
u32 oconfig;
- regs = intel_overlay_map_regs(overlay);
- if (!regs) {
- ret = -ENOMEM;
- goto out_unpin;
- }
+
oconfig = OCONF_CC_OUT_8BIT;
if (IS_GEN4(dev_priv))
oconfig |= OCONF_CSC_MODE_BT709;
oconfig |= pipe == 0 ?
OCONF_PIPE_A : OCONF_PIPE_B;
iowrite32(oconfig, ®s->OCONFIG);
- intel_overlay_unmap_regs(overlay, regs);
ret = intel_overlay_on(overlay);
if (ret != 0)
goto out_unpin;
}
- regs = intel_overlay_map_regs(overlay);
- if (!regs) {
- ret = -ENOMEM;
- goto out_unpin;
- }
-
iowrite32((params->dst_y << 16) | params->dst_x, ®s->DWINPOS);
iowrite32((params->dst_h << 16) | params->dst_w, ®s->DWINSZ);
@@ -882,8 +849,6 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
iowrite32(overlay_cmd_reg(params), ®s->OCMD);
- intel_overlay_unmap_regs(overlay, regs);
-
ret = intel_overlay_continue(overlay, vma, scale_changed);
if (ret)
goto out_unpin;
@@ -901,7 +866,6 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
int intel_overlay_switch_off(struct intel_overlay *overlay)
{
struct drm_i915_private *dev_priv = overlay->i915;
- struct overlay_registers __iomem *regs;
int ret;
lockdep_assert_held(&dev_priv->drm.struct_mutex);
@@ -918,9 +882,7 @@ int intel_overlay_switch_off(struct intel_overlay *overlay)
if (ret != 0)
return ret;
- regs = intel_overlay_map_regs(overlay);
- iowrite32(0, ®s->OCMD);
- intel_overlay_unmap_regs(overlay, regs);
+ iowrite32(0, &overlay->regs->OCMD);
return intel_overlay_off(overlay);
}
@@ -1305,7 +1267,6 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
struct drm_intel_overlay_attrs *attrs = data;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_overlay *overlay;
- struct overlay_registers __iomem *regs;
int ret;
overlay = dev_priv->overlay;
@@ -1345,15 +1306,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
overlay->contrast = attrs->contrast;
overlay->saturation = attrs->saturation;
- regs = intel_overlay_map_regs(overlay);
- if (!regs) {
- ret = -ENOMEM;
- goto out_unlock;
- }
-
- update_reg_attrs(overlay, regs);
-
- intel_overlay_unmap_regs(overlay, regs);
+ update_reg_attrs(overlay, overlay->regs);
if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) {
if (IS_GEN2(dev_priv))
@@ -1386,12 +1339,47 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
return ret;
}
+static int get_registers(struct intel_overlay *overlay, bool use_phys)
+{
+ struct drm_i915_gem_object *obj;
+ struct i915_vma *vma;
+ int err;
+
+ obj = i915_gem_object_create_stolen(overlay->i915, PAGE_SIZE);
+ if (obj == NULL)
+ obj = i915_gem_object_create_internal(overlay->i915, PAGE_SIZE);
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
+
+ vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, PIN_MAPPABLE);
+ if (IS_ERR(vma)) {
+ err = PTR_ERR(vma);
+ goto err_put_bo;
+ }
+
+ if (use_phys)
+ overlay->flip_addr = sg_dma_address(obj->mm.pages->sgl);
+ else
+ overlay->flip_addr = i915_ggtt_offset(vma);
+ overlay->regs = i915_vma_pin_iomap(vma);
+ i915_vma_unpin(vma);
+
+ if (IS_ERR(overlay->regs)) {
+ err = PTR_ERR(overlay->regs);
+ goto err_put_bo;
+ }
+
+ overlay->reg_bo = obj;
+ return 0;
+
+err_put_bo:
+ i915_gem_object_put(obj);
+ return err;
+}
+
void intel_setup_overlay(struct drm_i915_private *dev_priv)
{
struct intel_overlay *overlay;
- struct drm_i915_gem_object *reg_bo;
- struct overlay_registers __iomem *regs;
- struct i915_vma *vma = NULL;
int ret;
if (!HAS_OVERLAY(dev_priv))
@@ -1401,46 +1389,8 @@ void intel_setup_overlay(struct drm_i915_private *dev_priv)
if (!overlay)
return;
- mutex_lock(&dev_priv->drm.struct_mutex);
- if (WARN_ON(dev_priv->overlay))
- goto out_free;
-
overlay->i915 = dev_priv;
- reg_bo = NULL;
- if (!OVERLAY_NEEDS_PHYSICAL(dev_priv))
- reg_bo = i915_gem_object_create_stolen(dev_priv, PAGE_SIZE);
- if (reg_bo == NULL)
- reg_bo = i915_gem_object_create(dev_priv, PAGE_SIZE);
- if (IS_ERR(reg_bo))
- goto out_free;
- overlay->reg_bo = reg_bo;
-
- if (OVERLAY_NEEDS_PHYSICAL(dev_priv)) {
- ret = i915_gem_object_attach_phys(reg_bo, PAGE_SIZE);
- if (ret) {
- DRM_ERROR("failed to attach phys overlay regs\n");
- goto out_free_bo;
- }
- overlay->flip_addr = reg_bo->phys_handle->busaddr;
- } else {
- vma = i915_gem_object_ggtt_pin(reg_bo, NULL,
- 0, PAGE_SIZE, PIN_MAPPABLE);
- if (IS_ERR(vma)) {
- DRM_ERROR("failed to pin overlay register bo\n");
- ret = PTR_ERR(vma);
- goto out_free_bo;
- }
- overlay->flip_addr = i915_ggtt_offset(vma);
-
- ret = i915_gem_object_set_to_gtt_domain(reg_bo, true);
- if (ret) {
- DRM_ERROR("failed to move overlay register bo into the GTT\n");
- goto out_unpin_bo;
- }
- }
-
- /* init all values */
overlay->color_key = 0x0101fe;
overlay->color_key_enabled = true;
overlay->brightness = -19;
@@ -1449,44 +1399,51 @@ void intel_setup_overlay(struct drm_i915_private *dev_priv)
init_request_active(&overlay->last_flip, NULL);
- regs = intel_overlay_map_regs(overlay);
- if (!regs)
- goto out_unpin_bo;
+ mutex_lock(&dev_priv->drm.struct_mutex);
- memset_io(regs, 0, sizeof(struct overlay_registers));
- update_polyphase_filter(regs);
- update_reg_attrs(overlay, regs);
+ ret = get_registers(overlay, OVERLAY_NEEDS_PHYSICAL(dev_priv));
+ if (ret)
+ goto out_free;
- intel_overlay_unmap_regs(overlay, regs);
+ ret = i915_gem_object_set_to_gtt_domain(overlay->reg_bo, true);
+ if (ret)
+ goto out_reg_bo;
+
+ mutex_unlock(&dev_priv->drm.struct_mutex);
+
+ memset_io(overlay->regs, 0, sizeof(struct overlay_registers));
+ update_polyphase_filter(overlay->regs);
+ update_reg_attrs(overlay, overlay->regs);
dev_priv->overlay = overlay;
- mutex_unlock(&dev_priv->drm.struct_mutex);
- DRM_INFO("initialized overlay support\n");
+ DRM_INFO("Initialized overlay support.\n");
return;
-out_unpin_bo:
- if (vma)
- i915_vma_unpin(vma);
-out_free_bo:
- i915_gem_object_put(reg_bo);
+out_reg_bo:
+ i915_gem_object_put(overlay->reg_bo);
out_free:
mutex_unlock(&dev_priv->drm.struct_mutex);
kfree(overlay);
- return;
}
void intel_cleanup_overlay(struct drm_i915_private *dev_priv)
{
- if (!dev_priv->overlay)
+ struct intel_overlay *overlay;
+
+ overlay = fetch_and_zero(&dev_priv->overlay);
+ if (!overlay)
return;
- /* The bo's should be free'd by the generic code already.
+ /*
+ * The bo's should be free'd by the generic code already.
* Furthermore modesetting teardown happens beforehand so the
- * hardware should be off already */
- WARN_ON(dev_priv->overlay->active);
+ * hardware should be off already.
+ */
+ WARN_ON(overlay->active);
- i915_gem_object_put(dev_priv->overlay->reg_bo);
- kfree(dev_priv->overlay);
+ i915_gem_object_put(overlay->reg_bo);
+
+ kfree(overlay);
}
#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
@@ -1498,37 +1455,11 @@ struct intel_overlay_error_state {
u32 isr;
};
-static struct overlay_registers __iomem *
-intel_overlay_map_regs_atomic(struct intel_overlay *overlay)
-{
- struct drm_i915_private *dev_priv = overlay->i915;
- struct overlay_registers __iomem *regs;
-
- if (OVERLAY_NEEDS_PHYSICAL(dev_priv))
- /* Cast to make sparse happy, but it's wc memory anyway, so
- * equivalent to the wc io mapping on X86. */
- regs = (struct overlay_registers __iomem *)
- overlay->reg_bo->phys_handle->vaddr;
- else
- regs = io_mapping_map_atomic_wc(&dev_priv->ggtt.iomap,
- overlay->flip_addr);
-
- return regs;
-}
-
-static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay,
- struct overlay_registers __iomem *regs)
-{
- if (!OVERLAY_NEEDS_PHYSICAL(overlay->i915))
- io_mapping_unmap_atomic(regs);
-}
-
struct intel_overlay_error_state *
intel_overlay_capture_error_state(struct drm_i915_private *dev_priv)
{
struct intel_overlay *overlay = dev_priv->overlay;
struct intel_overlay_error_state *error;
- struct overlay_registers __iomem *regs;
if (!overlay || !overlay->active)
return NULL;
@@ -1541,18 +1472,9 @@ intel_overlay_capture_error_state(struct drm_i915_private *dev_priv)
error->isr = I915_READ(ISR);
error->base = overlay->flip_addr;
- regs = intel_overlay_map_regs_atomic(overlay);
- if (!regs)
- goto err;
-
- memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers));
- intel_overlay_unmap_regs_atomic(overlay, regs);
+ memcpy_fromio(&error->regs, overlay->regs, sizeof(error->regs));
return error;
-
-err:
- kfree(error);
- return NULL;
}
void
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c
index d65959e..17235e9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gm200.c
@@ -86,10 +86,8 @@ pmu_load(struct nv50_devinit *init, u8 type, bool post,
struct nvkm_bios *bios = subdev->device->bios;
struct nvbios_pmuR pmu;
- if (!nvbios_pmuRm(bios, type, &pmu)) {
- nvkm_error(subdev, "VBIOS PMU fuc %02x not found\n", type);
+ if (!nvbios_pmuRm(bios, type, &pmu))
return -EINVAL;
- }
if (!post)
return 0;
@@ -124,29 +122,30 @@ gm200_devinit_post(struct nvkm_devinit *base, bool post)
return -EINVAL;
}
+ /* Upload DEVINIT application from VBIOS onto PMU. */
ret = pmu_load(init, 0x04, post, &exec, &args);
- if (ret)
+ if (ret) {
+ nvkm_error(subdev, "VBIOS PMU/DEVINIT not found\n");
return ret;
+ }
- /* upload first chunk of init data */
+ /* Upload tables required by opcodes in boot scripts. */
if (post) {
- // devinit tables
u32 pmu = pmu_args(init, args + 0x08, 0x08);
u32 img = nvbios_rd16(bios, bit_I.offset + 0x14);
u32 len = nvbios_rd16(bios, bit_I.offset + 0x16);
pmu_data(init, pmu, img, len);
}
- /* upload second chunk of init data */
+ /* Upload boot scripts. */
if (post) {
- // devinit boot scripts
u32 pmu = pmu_args(init, args + 0x08, 0x10);
u32 img = nvbios_rd16(bios, bit_I.offset + 0x18);
u32 len = nvbios_rd16(bios, bit_I.offset + 0x1a);
pmu_data(init, pmu, img, len);
}
- /* execute init tables */
+ /* Execute DEVINIT. */
if (post) {
nvkm_wr32(device, 0x10a040, 0x00005000);
pmu_exec(init, exec);
@@ -157,7 +156,9 @@ gm200_devinit_post(struct nvkm_devinit *base, bool post)
return -ETIMEDOUT;
}
- /* load and execute some other ucode image (bios therm?) */
+ /* Optional: Execute PRE_OS application on PMU, which should at
+ * least take care of fans until a full PMU has been loaded.
+ */
pmu_load(init, 0x01, post, NULL, NULL);
return 0;
}
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index b1b548a..c71cc85 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1291,6 +1291,9 @@ static ssize_t vmbus_chan_attr_show(struct kobject *kobj,
if (!attribute->show)
return -EIO;
+ if (chan->state != CHANNEL_OPENED_STATE)
+ return -EINVAL;
+
return attribute->show(chan, buf);
}
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 7589f2a..631360b 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -187,12 +187,15 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor,
int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
{
- u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask;
+ u16 fifo_watermark = ~0, cur_watermark, fifo_th_mask;
struct st_lsm6dsx_hw *hw = sensor->hw;
struct st_lsm6dsx_sensor *cur_sensor;
int i, err, data;
__le16 wdata;
+ if (!hw->sip)
+ return 0;
+
for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
cur_sensor = iio_priv(hw->iio_devs[i]);
@@ -203,14 +206,10 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
: cur_sensor->watermark;
fifo_watermark = min_t(u16, fifo_watermark, cur_watermark);
- sip += cur_sensor->sip;
}
- if (!sip)
- return 0;
-
- fifo_watermark = max_t(u16, fifo_watermark, sip);
- fifo_watermark = (fifo_watermark / sip) * sip;
+ fifo_watermark = max_t(u16, fifo_watermark, hw->sip);
+ fifo_watermark = (fifo_watermark / hw->sip) * hw->sip;
fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl;
err = regmap_read(hw->regmap, hw->settings->fifo_ops.fifo_th.addr + 1,
diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c
index 54e3832..c31b963 100644
--- a/drivers/iio/temperature/maxim_thermocouple.c
+++ b/drivers/iio/temperature/maxim_thermocouple.c
@@ -258,7 +258,6 @@ static int maxim_thermocouple_remove(struct spi_device *spi)
static const struct spi_device_id maxim_thermocouple_id[] = {
{"max6675", MAX6675},
{"max31855", MAX31855},
- {"max31856", MAX31855},
{},
};
MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id);
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index eec8375..6c967dd 100644
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -893,14 +893,11 @@ static int trigger_sbr(struct hfi1_devdata *dd)
}
/*
- * A secondary bus reset (SBR) issues a hot reset to our device.
- * The following routine does a 1s wait after the reset is dropped
- * per PCI Trhfa (recovery time). PCIe 3.0 section 6.6.1 -
- * Conventional Reset, paragraph 3, line 35 also says that a 1s
- * delay after a reset is required. Per spec requirements,
- * the link is either working or not after that point.
+ * This is an end around to do an SBR during probe time. A new API needs
+ * to be implemented to have cleaner interface but this fixes the
+ * current brokenness
*/
- return pci_reset_bus(dev);
+ return pci_bridge_secondary_bus_reset(dev->bus->self);
}
/*
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index f266c81..0481223 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -332,7 +332,7 @@ static int crypt_iv_essiv_init(struct crypt_config *cc)
int err;
desc->tfm = essiv->hash_tfm;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ desc->flags = 0;
err = crypto_shash_digest(desc, cc->key, cc->key_size, essiv->salt);
shash_desc_zero(desc);
@@ -606,7 +606,7 @@ static int crypt_iv_lmk_one(struct crypt_config *cc, u8 *iv,
int i, r;
desc->tfm = lmk->hash_tfm;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ desc->flags = 0;
r = crypto_shash_init(desc);
if (r)
@@ -768,7 +768,7 @@ static int crypt_iv_tcw_whitening(struct crypt_config *cc,
/* calculate crc32 for every 32bit part and xor it */
desc->tfm = tcw->crc32_tfm;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ desc->flags = 0;
for (i = 0; i < 4; i++) {
r = crypto_shash_init(desc);
if (r)
@@ -1251,7 +1251,7 @@ static void crypt_alloc_req_skcipher(struct crypt_config *cc,
* requests if driver request queue is full.
*/
skcipher_request_set_callback(ctx->r.req,
- CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
kcryptd_async_done, dmreq_of_req(cc, ctx->r.req));
}
@@ -1268,7 +1268,7 @@ static void crypt_alloc_req_aead(struct crypt_config *cc,
* requests if driver request queue is full.
*/
aead_request_set_callback(ctx->r.req_aead,
- CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
kcryptd_async_done, dmreq_of_req(cc, ctx->r.req_aead));
}
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 3788785..89ccb64 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -532,7 +532,7 @@ static void section_mac(struct dm_integrity_c *ic, unsigned section, __u8 result
unsigned j, size;
desc->tfm = ic->journal_mac;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ desc->flags = 0;
r = crypto_shash_init(desc);
if (unlikely(r)) {
@@ -676,7 +676,7 @@ static void complete_journal_encrypt(struct crypto_async_request *req, int err)
static bool do_crypt(bool encrypt, struct skcipher_request *req, struct journal_completion *comp)
{
int r;
- skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
+ skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
complete_journal_encrypt, comp);
if (likely(encrypt))
r = crypto_skcipher_encrypt(req);
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index cae689d..5ba067f 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2010-2011 Neil Brown
- * Copyright (C) 2010-2017 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.
*
* This file is released under the GPL.
*/
@@ -29,9 +29,6 @@
*/
#define MIN_RAID456_JOURNAL_SPACE (4*2048)
-/* Global list of all raid sets */
-static LIST_HEAD(raid_sets);
-
static bool devices_handle_discard_safely = false;
/*
@@ -227,7 +224,6 @@ struct rs_layout {
struct raid_set {
struct dm_target *ti;
- struct list_head list;
uint32_t stripe_cache_entries;
unsigned long ctr_flags;
@@ -273,19 +269,6 @@ static void rs_config_restore(struct raid_set *rs, struct rs_layout *l)
mddev->new_chunk_sectors = l->new_chunk_sectors;
}
-/* Find any raid_set in active slot for @rs on global list */
-static struct raid_set *rs_find_active(struct raid_set *rs)
-{
- struct raid_set *r;
- struct mapped_device *md = dm_table_get_md(rs->ti->table);
-
- list_for_each_entry(r, &raid_sets, list)
- if (r != rs && dm_table_get_md(r->ti->table) == md)
- return r;
-
- return NULL;
-}
-
/* raid10 algorithms (i.e. formats) */
#define ALGORITHM_RAID10_DEFAULT 0
#define ALGORITHM_RAID10_NEAR 1
@@ -764,7 +747,6 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r
mddev_init(&rs->md);
- INIT_LIST_HEAD(&rs->list);
rs->raid_disks = raid_devs;
rs->delta_disks = 0;
@@ -782,9 +764,6 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r
for (i = 0; i < raid_devs; i++)
md_rdev_init(&rs->dev[i].rdev);
- /* Add @rs to global list. */
- list_add(&rs->list, &raid_sets);
-
/*
* Remaining items to be initialized by further RAID params:
* rs->md.persistent
@@ -797,7 +776,7 @@ static struct raid_set *raid_set_alloc(struct dm_target *ti, struct raid_type *r
return rs;
}
-/* Free all @rs allocations and remove it from global list. */
+/* Free all @rs allocations */
static void raid_set_free(struct raid_set *rs)
{
int i;
@@ -815,8 +794,6 @@ static void raid_set_free(struct raid_set *rs)
dm_put_device(rs->ti, rs->dev[i].data_dev);
}
- list_del(&rs->list);
-
kfree(rs);
}
@@ -2649,7 +2626,7 @@ static int rs_adjust_data_offsets(struct raid_set *rs)
return 0;
}
- /* HM FIXME: get InSync raid_dev? */
+ /* HM FIXME: get In_Sync raid_dev? */
rdev = &rs->dev[0].rdev;
if (rs->delta_disks < 0) {
@@ -3149,6 +3126,11 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags);
rs_set_new(rs);
} else if (rs_is_recovering(rs)) {
+ /* Rebuild particular devices */
+ if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) {
+ set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags);
+ rs_setup_recovery(rs, MaxSector);
+ }
/* A recovering raid set may be resized */
; /* skip setup rs */
} else if (rs_is_reshaping(rs)) {
@@ -3242,6 +3224,8 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
/* Start raid set read-only and assumed clean to change in raid_resume() */
rs->md.ro = 1;
rs->md.in_sync = 1;
+
+ /* Keep array frozen */
set_bit(MD_RECOVERY_FROZEN, &rs->md.recovery);
/* Has to be held on running the array */
@@ -3265,7 +3249,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
rs->callbacks.congested_fn = raid_is_congested;
dm_table_add_target_callbacks(ti->table, &rs->callbacks);
- /* If raid4/5/6 journal mode explictely requested (only possible with journal dev) -> set it */
+ /* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */
if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags)) {
r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode);
if (r) {
@@ -3350,32 +3334,53 @@ static int raid_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_SUBMITTED;
}
-/* Return string describing the current sync action of @mddev */
-static const char *decipher_sync_action(struct mddev *mddev, unsigned long recovery)
+/* Return sync state string for @state */
+enum sync_state { st_frozen, st_reshape, st_resync, st_check, st_repair, st_recover, st_idle };
+static const char *sync_str(enum sync_state state)
+{
+ /* Has to be in above sync_state order! */
+ static const char *sync_strs[] = {
+ "frozen",
+ "reshape",
+ "resync",
+ "check",
+ "repair",
+ "recover",
+ "idle"
+ };
+
+ return __within_range(state, 0, ARRAY_SIZE(sync_strs) - 1) ? sync_strs[state] : "undef";
+};
+
+/* Return enum sync_state for @mddev derived from @recovery flags */
+static const enum sync_state decipher_sync_action(struct mddev *mddev, unsigned long recovery)
{
if (test_bit(MD_RECOVERY_FROZEN, &recovery))
- return "frozen";
+ return st_frozen;
- /* The MD sync thread can be done with io but still be running */
+ /* The MD sync thread can be done with io or be interrupted but still be running */
if (!test_bit(MD_RECOVERY_DONE, &recovery) &&
(test_bit(MD_RECOVERY_RUNNING, &recovery) ||
(!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &recovery)))) {
if (test_bit(MD_RECOVERY_RESHAPE, &recovery))
- return "reshape";
+ return st_reshape;
if (test_bit(MD_RECOVERY_SYNC, &recovery)) {
if (!test_bit(MD_RECOVERY_REQUESTED, &recovery))
- return "resync";
- else if (test_bit(MD_RECOVERY_CHECK, &recovery))
- return "check";
- return "repair";
+ return st_resync;
+ if (test_bit(MD_RECOVERY_CHECK, &recovery))
+ return st_check;
+ return st_repair;
}
if (test_bit(MD_RECOVERY_RECOVER, &recovery))
- return "recover";
+ return st_recover;
+
+ if (mddev->reshape_position != MaxSector)
+ return st_reshape;
}
- return "idle";
+ return st_idle;
}
/*
@@ -3409,6 +3414,7 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
sector_t resync_max_sectors)
{
sector_t r;
+ enum sync_state state;
struct mddev *mddev = &rs->md;
clear_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
@@ -3419,20 +3425,14 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
} else {
- if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) &&
- !test_bit(MD_RECOVERY_INTR, &recovery) &&
- (test_bit(MD_RECOVERY_NEEDED, &recovery) ||
- test_bit(MD_RECOVERY_RESHAPE, &recovery) ||
- test_bit(MD_RECOVERY_RUNNING, &recovery)))
- r = mddev->curr_resync_completed;
- else
- r = mddev->recovery_cp;
+ state = decipher_sync_action(mddev, recovery);
- if (r >= resync_max_sectors &&
- (!test_bit(MD_RECOVERY_REQUESTED, &recovery) ||
- (!test_bit(MD_RECOVERY_FROZEN, &recovery) &&
- !test_bit(MD_RECOVERY_NEEDED, &recovery) &&
- !test_bit(MD_RECOVERY_RUNNING, &recovery)))) {
+ if (state == st_idle && !test_bit(MD_RECOVERY_INTR, &recovery))
+ r = mddev->recovery_cp;
+ else
+ r = mddev->curr_resync_completed;
+
+ if (state == st_idle && r >= resync_max_sectors) {
/*
* Sync complete.
*/
@@ -3440,24 +3440,20 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
if (test_bit(MD_RECOVERY_RECOVER, &recovery))
set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
- } else if (test_bit(MD_RECOVERY_RECOVER, &recovery)) {
+ } else if (state == st_recover)
/*
* In case we are recovering, the array is not in sync
* and health chars should show the recovering legs.
*/
;
-
- } else if (test_bit(MD_RECOVERY_SYNC, &recovery) &&
- !test_bit(MD_RECOVERY_REQUESTED, &recovery)) {
+ else if (state == st_resync)
/*
* If "resync" is occurring, the raid set
* is or may be out of sync hence the health
* characters shall be 'a'.
*/
set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags);
-
- } else if (test_bit(MD_RECOVERY_RESHAPE, &recovery) &&
- !test_bit(MD_RECOVERY_REQUESTED, &recovery)) {
+ else if (state == st_reshape)
/*
* If "reshape" is occurring, the raid set
* is or may be out of sync hence the health
@@ -3465,7 +3461,7 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
*/
set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags);
- } else if (test_bit(MD_RECOVERY_REQUESTED, &recovery)) {
+ else if (state == st_check || state == st_repair)
/*
* If "check" or "repair" is occurring, the raid set has
* undergone an initial sync and the health characters
@@ -3473,12 +3469,12 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
*/
set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
- } else {
+ else {
struct md_rdev *rdev;
/*
* We are idle and recovery is needed, prevent 'A' chars race
- * caused by components still set to in-sync by constrcuctor.
+ * caused by components still set to in-sync by constructor.
*/
if (test_bit(MD_RECOVERY_NEEDED, &recovery))
set_bit(RT_FLAG_RS_RESYNCING, &rs->runtime_flags);
@@ -3542,7 +3538,7 @@ static void raid_status(struct dm_target *ti, status_type_t type,
progress = rs_get_progress(rs, recovery, resync_max_sectors);
resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ?
atomic64_read(&mddev->resync_mismatches) : 0;
- sync_action = decipher_sync_action(&rs->md, recovery);
+ sync_action = sync_str(decipher_sync_action(&rs->md, recovery));
/* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */
for (i = 0; i < rs->raid_disks; i++)
@@ -3892,14 +3888,13 @@ static int rs_start_reshape(struct raid_set *rs)
struct mddev *mddev = &rs->md;
struct md_personality *pers = mddev->pers;
+ /* Don't allow the sync thread to work until the table gets reloaded. */
+ set_bit(MD_RECOVERY_WAIT, &mddev->recovery);
+
r = rs_setup_reshape(rs);
if (r)
return r;
- /* Need to be resumed to be able to start reshape, recovery is frozen until raid_resume() though */
- if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
- mddev_resume(mddev);
-
/*
* Check any reshape constraints enforced by the personalility
*
@@ -3923,10 +3918,6 @@ static int rs_start_reshape(struct raid_set *rs)
}
}
- /* Suspend because a resume will happen in raid_resume() */
- set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags);
- mddev_suspend(mddev);
-
/*
* Now reshape got set up, update superblocks to
* reflect the fact so that a table reload will
@@ -3947,29 +3938,6 @@ static int raid_preresume(struct dm_target *ti)
if (test_and_set_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags))
return 0;
- if (!test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) {
- struct raid_set *rs_active = rs_find_active(rs);
-
- if (rs_active) {
- /*
- * In case no rebuilds have been requested
- * and an active table slot exists, copy
- * current resynchonization completed and
- * reshape position pointers across from
- * suspended raid set in the active slot.
- *
- * This resumes the new mapping at current
- * offsets to continue recover/reshape without
- * necessarily redoing a raid set partially or
- * causing data corruption in case of a reshape.
- */
- if (rs_active->md.curr_resync_completed != MaxSector)
- mddev->curr_resync_completed = rs_active->md.curr_resync_completed;
- if (rs_active->md.reshape_position != MaxSector)
- mddev->reshape_position = rs_active->md.reshape_position;
- }
- }
-
/*
* The superblocks need to be updated on disk if the
* array is new or new devices got added (thus zeroed
@@ -4046,7 +4014,7 @@ static void raid_resume(struct dm_target *ti)
static struct target_type raid_target = {
.name = "raid",
- .version = {1, 13, 2},
+ .version = {1, 14, 0},
.module = THIS_MODULE,
.ctr = raid_ctr,
.dtr = raid_dtr,
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 7214202..74f6770 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -189,6 +189,12 @@ struct dm_pool_metadata {
sector_t data_block_size;
/*
+ * We reserve a section of the metadata for commit overhead.
+ * All reported space does *not* include this.
+ */
+ dm_block_t metadata_reserve;
+
+ /*
* Set if a transaction has to be aborted but the attempt to roll back
* to the previous (good) transaction failed. The only pool metadata
* operation possible in this state is the closing of the device.
@@ -816,6 +822,22 @@ static int __commit_transaction(struct dm_pool_metadata *pmd)
return dm_tm_commit(pmd->tm, sblock);
}
+static void __set_metadata_reserve(struct dm_pool_metadata *pmd)
+{
+ int r;
+ dm_block_t total;
+ dm_block_t max_blocks = 4096; /* 16M */
+
+ r = dm_sm_get_nr_blocks(pmd->metadata_sm, &total);
+ if (r) {
+ DMERR("could not get size of metadata device");
+ pmd->metadata_reserve = max_blocks;
+ } else {
+ sector_div(total, 10);
+ pmd->metadata_reserve = min(max_blocks, total);
+ }
+}
+
struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev,
sector_t data_block_size,
bool format_device)
@@ -849,6 +871,8 @@ struct dm_pool_metadata *dm_pool_metadata_open(struct block_device *bdev,
return ERR_PTR(r);
}
+ __set_metadata_reserve(pmd);
+
return pmd;
}
@@ -1820,6 +1844,13 @@ int dm_pool_get_free_metadata_block_count(struct dm_pool_metadata *pmd,
down_read(&pmd->root_lock);
if (!pmd->fail_io)
r = dm_sm_get_nr_free(pmd->metadata_sm, result);
+
+ if (!r) {
+ if (*result < pmd->metadata_reserve)
+ *result = 0;
+ else
+ *result -= pmd->metadata_reserve;
+ }
up_read(&pmd->root_lock);
return r;
@@ -1932,8 +1963,11 @@ int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_cou
int r = -EINVAL;
down_write(&pmd->root_lock);
- if (!pmd->fail_io)
+ if (!pmd->fail_io) {
r = __resize_space_map(pmd->metadata_sm, new_count);
+ if (!r)
+ __set_metadata_reserve(pmd);
+ }
up_write(&pmd->root_lock);
return r;
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 7bd60a1..aaf1ad4 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -200,7 +200,13 @@ struct dm_thin_new_mapping;
enum pool_mode {
PM_WRITE, /* metadata may be changed */
PM_OUT_OF_DATA_SPACE, /* metadata may be changed, though data may not be allocated */
+
+ /*
+ * Like READ_ONLY, except may switch back to WRITE on metadata resize. Reported as READ_ONLY.
+ */
+ PM_OUT_OF_METADATA_SPACE,
PM_READ_ONLY, /* metadata may not be changed */
+
PM_FAIL, /* all I/O fails */
};
@@ -1371,7 +1377,35 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode);
static void requeue_bios(struct pool *pool);
-static void check_for_space(struct pool *pool)
+static bool is_read_only_pool_mode(enum pool_mode mode)
+{
+ return (mode == PM_OUT_OF_METADATA_SPACE || mode == PM_READ_ONLY);
+}
+
+static bool is_read_only(struct pool *pool)
+{
+ return is_read_only_pool_mode(get_pool_mode(pool));
+}
+
+static void check_for_metadata_space(struct pool *pool)
+{
+ int r;
+ const char *ooms_reason = NULL;
+ dm_block_t nr_free;
+
+ r = dm_pool_get_free_metadata_block_count(pool->pmd, &nr_free);
+ if (r)
+ ooms_reason = "Could not get free metadata blocks";
+ else if (!nr_free)
+ ooms_reason = "No free metadata blocks";
+
+ if (ooms_reason && !is_read_only(pool)) {
+ DMERR("%s", ooms_reason);
+ set_pool_mode(pool, PM_OUT_OF_METADATA_SPACE);
+ }
+}
+
+static void check_for_data_space(struct pool *pool)
{
int r;
dm_block_t nr_free;
@@ -1397,14 +1431,16 @@ static int commit(struct pool *pool)
{
int r;
- if (get_pool_mode(pool) >= PM_READ_ONLY)
+ if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE)
return -EINVAL;
r = dm_pool_commit_metadata(pool->pmd);
if (r)
metadata_operation_failed(pool, "dm_pool_commit_metadata", r);
- else
- check_for_space(pool);
+ else {
+ check_for_metadata_space(pool);
+ check_for_data_space(pool);
+ }
return r;
}
@@ -1470,6 +1506,19 @@ static int alloc_data_block(struct thin_c *tc, dm_block_t *result)
return r;
}
+ r = dm_pool_get_free_metadata_block_count(pool->pmd, &free_blocks);
+ if (r) {
+ metadata_operation_failed(pool, "dm_pool_get_free_metadata_block_count", r);
+ return r;
+ }
+
+ if (!free_blocks) {
+ /* Let's commit before we use up the metadata reserve. */
+ r = commit(pool);
+ if (r)
+ return r;
+ }
+
return 0;
}
@@ -1501,6 +1550,7 @@ static blk_status_t should_error_unserviceable_bio(struct pool *pool)
case PM_OUT_OF_DATA_SPACE:
return pool->pf.error_if_no_space ? BLK_STS_NOSPC : 0;
+ case PM_OUT_OF_METADATA_SPACE:
case PM_READ_ONLY:
case PM_FAIL:
return BLK_STS_IOERR;
@@ -2464,8 +2514,9 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
error_retry_list(pool);
break;
+ case PM_OUT_OF_METADATA_SPACE:
case PM_READ_ONLY:
- if (old_mode != new_mode)
+ if (!is_read_only_pool_mode(old_mode))
notify_of_pool_mode_change(pool, "read-only");
dm_pool_metadata_read_only(pool->pmd);
pool->process_bio = process_bio_read_only;
@@ -3403,6 +3454,10 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
DMINFO("%s: growing the metadata device from %llu to %llu blocks",
dm_device_name(pool->pool_md),
sb_metadata_dev_size, metadata_dev_size);
+
+ if (get_pool_mode(pool) == PM_OUT_OF_METADATA_SPACE)
+ set_pool_mode(pool, PM_WRITE);
+
r = dm_pool_resize_metadata_dev(pool->pmd, metadata_dev_size);
if (r) {
metadata_operation_failed(pool, "dm_pool_resize_metadata_dev", r);
@@ -3707,7 +3762,7 @@ static int pool_message(struct dm_target *ti, unsigned argc, char **argv,
struct pool_c *pt = ti->private;
struct pool *pool = pt->pool;
- if (get_pool_mode(pool) >= PM_READ_ONLY) {
+ if (get_pool_mode(pool) >= PM_OUT_OF_METADATA_SPACE) {
DMERR("%s: unable to service pool target messages in READ_ONLY or FAIL mode",
dm_device_name(pool->pool_md));
return -EOPNOTSUPP;
@@ -3781,6 +3836,7 @@ static void pool_status(struct dm_target *ti, status_type_t type,
dm_block_t nr_blocks_data;
dm_block_t nr_blocks_metadata;
dm_block_t held_root;
+ enum pool_mode mode;
char buf[BDEVNAME_SIZE];
char buf2[BDEVNAME_SIZE];
struct pool_c *pt = ti->private;
@@ -3851,9 +3907,10 @@ static void pool_status(struct dm_target *ti, status_type_t type,
else
DMEMIT("- ");
- if (pool->pf.mode == PM_OUT_OF_DATA_SPACE)
+ mode = get_pool_mode(pool);
+ if (mode == PM_OUT_OF_DATA_SPACE)
DMEMIT("out_of_data_space ");
- else if (pool->pf.mode == PM_READ_ONLY)
+ else if (is_read_only_pool_mode(mode))
DMEMIT("ro ");
else
DMEMIT("rw ");
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 12decdbd7..fc65f0d 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -99,10 +99,26 @@ static int verity_hash_update(struct dm_verity *v, struct ahash_request *req,
{
struct scatterlist sg;
- sg_init_one(&sg, data, len);
- ahash_request_set_crypt(req, &sg, NULL, len);
-
- return crypto_wait_req(crypto_ahash_update(req), wait);
+ if (likely(!is_vmalloc_addr(data))) {
+ sg_init_one(&sg, data, len);
+ ahash_request_set_crypt(req, &sg, NULL, len);
+ return crypto_wait_req(crypto_ahash_update(req), wait);
+ } else {
+ do {
+ int r;
+ size_t this_step = min_t(size_t, len, PAGE_SIZE - offset_in_page(data));
+ flush_kernel_vmap_range((void *)data, this_step);
+ sg_init_table(&sg, 1);
+ sg_set_page(&sg, vmalloc_to_page(data), this_step, offset_in_page(data));
+ ahash_request_set_crypt(req, &sg, NULL, this_step);
+ r = crypto_wait_req(crypto_ahash_update(req), wait);
+ if (unlikely(r))
+ return r;
+ data += this_step;
+ len -= this_step;
+ } while (len);
+ return 0;
+ }
}
/*
diff --git a/drivers/misc/hmc6352.c b/drivers/misc/hmc6352.c
index eeb7eef..38f90e1 100644
--- a/drivers/misc/hmc6352.c
+++ b/drivers/misc/hmc6352.c
@@ -27,6 +27,7 @@
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/sysfs.h>
+#include <linux/nospec.h>
static DEFINE_MUTEX(compass_mutex);
@@ -50,6 +51,7 @@ static int compass_store(struct device *dev, const char *buf, size_t count,
return ret;
if (val >= strlen(map))
return -EINVAL;
+ val = array_index_nospec(val, strlen(map));
mutex_lock(&compass_mutex);
ret = compass_command(c, map[val]);
mutex_unlock(&compass_mutex);
diff --git a/drivers/misc/ibmvmc.c b/drivers/misc/ibmvmc.c
index 8f82bb9..b8aaa68 100644
--- a/drivers/misc/ibmvmc.c
+++ b/drivers/misc/ibmvmc.c
@@ -2131,7 +2131,7 @@ static int ibmvmc_init_crq_queue(struct crq_server_adapter *adapter)
retrc = plpar_hcall_norets(H_REG_CRQ,
vdev->unit_address,
queue->msg_token, PAGE_SIZE);
- retrc = rc;
+ rc = retrc;
if (rc == H_RESOURCE)
rc = ibmvmc_reset_crq_queue(adapter);
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 7bba62a..fc3872f 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -521,17 +521,15 @@ int mei_cldev_enable(struct mei_cl_device *cldev)
cl = cldev->cl;
+ mutex_lock(&bus->device_lock);
if (cl->state == MEI_FILE_UNINITIALIZED) {
- mutex_lock(&bus->device_lock);
ret = mei_cl_link(cl);
- mutex_unlock(&bus->device_lock);
if (ret)
- return ret;
+ goto out;
/* update pointers */
cl->cldev = cldev;
}
- mutex_lock(&bus->device_lock);
if (mei_cl_is_connected(cl)) {
ret = 0;
goto out;
@@ -616,9 +614,8 @@ int mei_cldev_disable(struct mei_cl_device *cldev)
if (err < 0)
dev_err(bus->dev, "Could not disconnect from the ME client\n");
-out:
mei_cl_bus_module_put(cldev);
-
+out:
/* Flush queues and remove any pending read */
mei_cl_flush_queues(cl, NULL);
mei_cl_unlink(cl);
@@ -876,12 +873,13 @@ static void mei_cl_bus_dev_release(struct device *dev)
mei_me_cl_put(cldev->me_cl);
mei_dev_bus_put(cldev->bus);
+ mei_cl_unlink(cldev->cl);
kfree(cldev->cl);
kfree(cldev);
}
static const struct device_type mei_cl_device_type = {
- .release = mei_cl_bus_dev_release,
+ .release = mei_cl_bus_dev_release,
};
/**
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 4ab6251..ebdcf0b 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -1767,7 +1767,7 @@ ssize_t mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb)
}
}
- rets = buf->size;
+ rets = len;
err:
cl_dbg(dev, cl, "rpm: autosuspend\n");
pm_runtime_mark_last_busy(dev->dev);
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 09e233d..e56f3e7 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -1161,15 +1161,18 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
props_res = (struct hbm_props_response *)mei_msg;
- if (props_res->status) {
+ if (props_res->status == MEI_HBMS_CLIENT_NOT_FOUND) {
+ dev_dbg(dev->dev, "hbm: properties response: %d CLIENT_NOT_FOUND\n",
+ props_res->me_addr);
+ } else if (props_res->status) {
dev_err(dev->dev, "hbm: properties response: wrong status = %d %s\n",
props_res->status,
mei_hbm_status_str(props_res->status));
return -EPROTO;
+ } else {
+ mei_hbm_me_cl_add(dev, props_res);
}
- mei_hbm_me_cl_add(dev, props_res);
-
/* request property for the next client */
if (mei_hbm_prop_req(dev, props_res->me_addr + 1))
return -EIO;
diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
index 09cb896..2cfec33 100644
--- a/drivers/mmc/host/meson-mx-sdio.c
+++ b/drivers/mmc/host/meson-mx-sdio.c
@@ -517,19 +517,23 @@ static struct mmc_host_ops meson_mx_mmc_ops = {
static struct platform_device *meson_mx_mmc_slot_pdev(struct device *parent)
{
struct device_node *slot_node;
+ struct platform_device *pdev;
/*
* TODO: the MMC core framework currently does not support
* controllers with multiple slots properly. So we only register
* the first slot for now
*/
- slot_node = of_find_compatible_node(parent->of_node, NULL, "mmc-slot");
+ slot_node = of_get_compatible_child(parent->of_node, "mmc-slot");
if (!slot_node) {
dev_warn(parent, "no 'mmc-slot' sub-node found\n");
return ERR_PTR(-ENOENT);
}
- return of_platform_device_create(slot_node, NULL, parent);
+ pdev = of_platform_device_create(slot_node, NULL, parent);
+ of_node_put(slot_node);
+
+ return pdev;
}
static int meson_mx_mmc_add_host(struct meson_mx_mmc_host *host)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 071693e..68760d4 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2177,6 +2177,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
dma_release_channel(host->tx_chan);
dma_release_channel(host->rx_chan);
+ dev_pm_clear_wake_irq(host->dev);
pm_runtime_dont_use_autosuspend(host->dev);
pm_runtime_put_sync(host->dev);
pm_runtime_disable(host->dev);
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 3533e91..bfc4da6 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -66,6 +66,7 @@ struct nvmet_rdma_rsp {
struct nvmet_req req;
+ bool allocated;
u8 n_rdma;
u32 flags;
u32 invalidate_rkey;
@@ -174,11 +175,19 @@ nvmet_rdma_get_rsp(struct nvmet_rdma_queue *queue)
unsigned long flags;
spin_lock_irqsave(&queue->rsps_lock, flags);
- rsp = list_first_entry(&queue->free_rsps,
+ rsp = list_first_entry_or_null(&queue->free_rsps,
struct nvmet_rdma_rsp, free_list);
- list_del(&rsp->free_list);
+ if (likely(rsp))
+ list_del(&rsp->free_list);
spin_unlock_irqrestore(&queue->rsps_lock, flags);
+ if (unlikely(!rsp)) {
+ rsp = kmalloc(sizeof(*rsp), GFP_KERNEL);
+ if (unlikely(!rsp))
+ return NULL;
+ rsp->allocated = true;
+ }
+
return rsp;
}
@@ -187,6 +196,11 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp *rsp)
{
unsigned long flags;
+ if (rsp->allocated) {
+ kfree(rsp);
+ return;
+ }
+
spin_lock_irqsave(&rsp->queue->rsps_lock, flags);
list_add_tail(&rsp->free_list, &rsp->queue->free_rsps);
spin_unlock_irqrestore(&rsp->queue->rsps_lock, flags);
@@ -776,6 +790,15 @@ static void nvmet_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc)
cmd->queue = queue;
rsp = nvmet_rdma_get_rsp(queue);
+ if (unlikely(!rsp)) {
+ /*
+ * we get here only under memory pressure,
+ * silently drop and have the host retry
+ * as we can't even fail it.
+ */
+ nvmet_rdma_post_recv(queue->dev, cmd);
+ return;
+ }
rsp->queue = queue;
rsp->cmd = cmd;
rsp->flags = 0;
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 9095b82..74eaedd 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -140,6 +140,9 @@ void of_populate_phandle_cache(void)
if (np->phandle && np->phandle != OF_PHANDLE_ILLEGAL)
phandles++;
+ if (!phandles)
+ goto out;
+
cache_entries = roundup_pow_of_two(phandles);
phandle_cache_mask = cache_entries - 1;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 7136e34..a938abd 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -496,7 +496,7 @@ int pciehp_power_on_slot(struct slot *slot)
u16 slot_status;
int retval;
- /* Clear sticky power-fault bit from previous power failures */
+ /* Clear power-fault bit from previous power failures */
pcie_capability_read_word(pdev, PCI_EXP_SLTSTA, &slot_status);
if (slot_status & PCI_EXP_SLTSTA_PFD)
pcie_capability_write_word(pdev, PCI_EXP_SLTSTA,
@@ -646,6 +646,14 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
pciehp_handle_button_press(slot);
}
+ /* Check Power Fault Detected */
+ if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) {
+ ctrl->power_fault_detected = 1;
+ ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(slot));
+ pciehp_set_attention_status(slot, 1);
+ pciehp_green_led_off(slot);
+ }
+
/*
* Disable requests have higher priority than Presence Detect Changed
* or Data Link Layer State Changed events.
@@ -657,14 +665,6 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
pciehp_handle_presence_or_link_change(slot, events);
up_read(&ctrl->reset_lock);
- /* Check Power Fault Detected */
- if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) {
- ctrl->power_fault_detected = 1;
- ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(slot));
- pciehp_set_attention_status(slot, 1);
- pciehp_green_led_off(slot);
- }
-
pci_config_pm_runtime_put(pdev);
wake_up(&ctrl->requester);
return IRQ_HANDLED;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 29ff961..1835f3a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4547,6 +4547,7 @@ int pci_bridge_secondary_bus_reset(struct pci_dev *dev)
return pci_dev_wait(dev, "bus reset", PCIE_RESET_READY_POLL_MS);
}
+EXPORT_SYMBOL_GPL(pci_bridge_secondary_bus_reset);
static int pci_parent_bus_reset(struct pci_dev *dev, int probe)
{
@@ -5200,7 +5201,7 @@ static int __pci_reset_bus(struct pci_bus *bus)
*/
int pci_reset_bus(struct pci_dev *pdev)
{
- return pci_probe_reset_slot(pdev->slot) ?
+ return (!pci_probe_reset_slot(pdev->slot)) ?
__pci_reset_slot(pdev->slot) : __pci_reset_bus(pdev->bus);
}
EXPORT_SYMBOL_GPL(pci_reset_bus);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index ec78400..201f9e5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2074,6 +2074,7 @@ static void pci_configure_eetlp_prefix(struct pci_dev *dev)
{
#ifdef CONFIG_PCI_PASID
struct pci_dev *bridge;
+ int pcie_type;
u32 cap;
if (!pci_is_pcie(dev))
@@ -2083,7 +2084,9 @@ static void pci_configure_eetlp_prefix(struct pci_dev *dev)
if (!(cap & PCI_EXP_DEVCAP2_EE_PREFIX))
return;
- if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT)
+ pcie_type = pci_pcie_type(dev);
+ if (pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
+ pcie_type == PCI_EXP_TYPE_RC_END)
dev->eetlp_prefix_path = 1;
else {
bridge = pci_upstream_bridge(dev);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index ef7143a..6bc27b7 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4355,11 +4355,6 @@ static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
*
* 0x9d10-0x9d1b PCI Express Root port #{1-12}
*
- * The 300 series chipset suffers from the same bug so include those root
- * ports here as well.
- *
- * 0xa32c-0xa343 PCI Express Root port #{0-24}
- *
* [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
* [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
* [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
@@ -4377,7 +4372,6 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
- case 0xa32c ... 0xa343: /* 300 series */
return true;
}
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 9940cc7..54a8b30 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -14,6 +14,8 @@
#include <linux/poll.h>
#include <linux/wait.h>
+#include <linux/nospec.h>
+
MODULE_DESCRIPTION("Microsemi Switchtec(tm) PCIe Management Driver");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");
@@ -909,6 +911,8 @@ static int ioctl_port_to_pff(struct switchtec_dev *stdev,
default:
if (p.port > ARRAY_SIZE(pcfg->dsp_pff_inst_id))
return -EINVAL;
+ p.port = array_index_nospec(p.port,
+ ARRAY_SIZE(pcfg->dsp_pff_inst_id) + 1);
p.pff = ioread32(&pcfg->dsp_pff_inst_id[p.port - 1]);
break;
}
diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
index ece41fb..c4f4d90 100644
--- a/drivers/pinctrl/cirrus/pinctrl-madera-core.c
+++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
@@ -1040,7 +1040,7 @@ static int madera_pin_probe(struct platform_device *pdev)
}
/* if the configuration is provided through pdata, apply it */
- if (pdata) {
+ if (pdata && pdata->gpio_configs) {
ret = pinctrl_register_mappings(pdata->gpio_configs,
pdata->n_gpio_configs);
if (ret) {
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 6a1b605..628817c 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -793,7 +793,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
err = pinctrl_generic_add_group(jzpc->pctl, group->name,
group->pins, group->num_pins, group->data);
- if (err) {
+ if (err < 0) {
dev_err(dev, "Failed to register group %s\n",
group->name);
return err;
@@ -806,7 +806,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
err = pinmux_generic_add_function(jzpc->pctl, func->name,
func->group_names, func->num_group_names,
func->data);
- if (err) {
+ if (err < 0) {
dev_err(dev, "Failed to register function %s\n",
func->name);
return err;
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 2155a30..5d72ffa 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -634,6 +634,29 @@ static void msm_gpio_irq_mask(struct irq_data *d)
raw_spin_lock_irqsave(&pctrl->lock, flags);
val = readl(pctrl->regs + g->intr_cfg_reg);
+ /*
+ * There are two bits that control interrupt forwarding to the CPU. The
+ * RAW_STATUS_EN bit causes the level or edge sensed on the line to be
+ * latched into the interrupt status register when the hardware detects
+ * an irq that it's configured for (either edge for edge type or level
+ * for level type irq). The 'non-raw' status enable bit causes the
+ * hardware to assert the summary interrupt to the CPU if the latched
+ * status bit is set. There's a bug though, the edge detection logic
+ * seems to have a problem where toggling the RAW_STATUS_EN bit may
+ * cause the status bit to latch spuriously when there isn't any edge
+ * so we can't touch that bit for edge type irqs and we have to keep
+ * the bit set anyway so that edges are latched while the line is masked.
+ *
+ * To make matters more complicated, leaving the RAW_STATUS_EN bit
+ * enabled all the time causes level interrupts to re-latch into the
+ * status register because the level is still present on the line after
+ * we ack it. We clear the raw status enable bit during mask here and
+ * set the bit on unmask so the interrupt can't latch into the hardware
+ * while it's masked.
+ */
+ if (irqd_get_trigger_type(d) & IRQ_TYPE_LEVEL_MASK)
+ val &= ~BIT(g->intr_raw_status_bit);
+
val &= ~BIT(g->intr_enable_bit);
writel(val, pctrl->regs + g->intr_cfg_reg);
@@ -655,6 +678,7 @@ static void msm_gpio_irq_unmask(struct irq_data *d)
raw_spin_lock_irqsave(&pctrl->lock, flags);
val = readl(pctrl->regs + g->intr_cfg_reg);
+ val |= BIT(g->intr_raw_status_bit);
val |= BIT(g->intr_enable_bit);
writel(val, pctrl->regs + g->intr_cfg_reg);
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index ec891bc..f039266 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -872,8 +872,6 @@ static int hex2bitmap(const char *str, unsigned long *bitmap, int bits)
if (bits & 0x07)
return -EINVAL;
- memset(bitmap, 0, bits / 8);
-
if (str[0] == '0' && str[1] == 'x')
str++;
if (*str == 'x')
@@ -895,25 +893,23 @@ static int hex2bitmap(const char *str, unsigned long *bitmap, int bits)
}
/*
- * str2clrsetmasks() - parse bitmask argument and set the clear and
- * the set bitmap mask. A concatenation (done with ',') of these terms
- * is recognized:
+ * modify_bitmap() - parse bitmask argument and modify an existing
+ * bit mask accordingly. A concatenation (done with ',') of these
+ * terms is recognized:
* +<bitnr>[-<bitnr>] or -<bitnr>[-<bitnr>]
* <bitnr> may be any valid number (hex, decimal or octal) in the range
* 0...bits-1; the leading + or - is required. Here are some examples:
* +0-15,+32,-128,-0xFF
* -0-255,+1-16,+0x128
* +1,+2,+3,+4,-5,-7-10
- * Returns a clear and a set bitmask. Every positive value in the string
- * results in a bit set in the set mask and every negative value in the
- * string results in a bit SET in the clear mask. As a bit may be touched
- * more than once, the last 'operation' wins: +0-255,-128 = all but bit
- * 128 set in the set mask, only bit 128 set in the clear mask.
+ * Returns the new bitmap after all changes have been applied. Every
+ * positive value in the string will set a bit and every negative value
+ * in the string will clear a bit. As a bit may be touched more than once,
+ * the last 'operation' wins:
+ * +0-255,-128 = first bits 0-255 will be set, then bit 128 will be
+ * cleared again. All other bits are unmodified.
*/
-static int str2clrsetmasks(const char *str,
- unsigned long *clrmap,
- unsigned long *setmap,
- int bits)
+static int modify_bitmap(const char *str, unsigned long *bitmap, int bits)
{
int a, i, z;
char *np, sign;
@@ -922,9 +918,6 @@ static int str2clrsetmasks(const char *str,
if (bits & 0x07)
return -EINVAL;
- memset(clrmap, 0, bits / 8);
- memset(setmap, 0, bits / 8);
-
while (*str) {
sign = *str++;
if (sign != '+' && sign != '-')
@@ -940,13 +933,10 @@ static int str2clrsetmasks(const char *str,
str = np;
}
for (i = a; i <= z; i++)
- if (sign == '+') {
- set_bit_inv(i, setmap);
- clear_bit_inv(i, clrmap);
- } else {
- clear_bit_inv(i, setmap);
- set_bit_inv(i, clrmap);
- }
+ if (sign == '+')
+ set_bit_inv(i, bitmap);
+ else
+ clear_bit_inv(i, bitmap);
while (*str == ',' || *str == '\n')
str++;
}
@@ -970,44 +960,34 @@ static int process_mask_arg(const char *str,
unsigned long *bitmap, int bits,
struct mutex *lock)
{
- int i;
+ unsigned long *newmap, size;
+ int rc;
/* bits needs to be a multiple of 8 */
if (bits & 0x07)
return -EINVAL;
- if (*str == '+' || *str == '-') {
- DECLARE_BITMAP(clrm, bits);
- DECLARE_BITMAP(setm, bits);
-
- i = str2clrsetmasks(str, clrm, setm, bits);
- if (i)
- return i;
- if (mutex_lock_interruptible(lock))
- return -ERESTARTSYS;
- for (i = 0; i < bits; i++) {
- if (test_bit_inv(i, clrm))
- clear_bit_inv(i, bitmap);
- if (test_bit_inv(i, setm))
- set_bit_inv(i, bitmap);
- }
- } else {
- DECLARE_BITMAP(setm, bits);
-
- i = hex2bitmap(str, setm, bits);
- if (i)
- return i;
- if (mutex_lock_interruptible(lock))
- return -ERESTARTSYS;
- for (i = 0; i < bits; i++)
- if (test_bit_inv(i, setm))
- set_bit_inv(i, bitmap);
- else
- clear_bit_inv(i, bitmap);
+ size = BITS_TO_LONGS(bits)*sizeof(unsigned long);
+ newmap = kmalloc(size, GFP_KERNEL);
+ if (!newmap)
+ return -ENOMEM;
+ if (mutex_lock_interruptible(lock)) {
+ kfree(newmap);
+ return -ERESTARTSYS;
}
- mutex_unlock(lock);
- return 0;
+ if (*str == '+' || *str == '-') {
+ memcpy(newmap, bitmap, size);
+ rc = modify_bitmap(str, newmap, bits);
+ } else {
+ memset(newmap, 0, size);
+ rc = hex2bitmap(str, newmap, bits);
+ }
+ if (rc == 0)
+ memcpy(bitmap, newmap, size);
+ mutex_unlock(lock);
+ kfree(newmap);
+ return rc;
}
/*
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 7cb3ab0..3082e72 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -30,7 +30,11 @@
#define DRIVER_NAME "fsl-dspi"
+#ifdef CONFIG_M5441x
+#define DSPI_FIFO_SIZE 16
+#else
#define DSPI_FIFO_SIZE 4
+#endif
#define DSPI_DMA_BUFSIZE (DSPI_FIFO_SIZE * 1024)
#define SPI_MCR 0x00
@@ -623,9 +627,11 @@ static void dspi_tcfq_read(struct fsl_dspi *dspi)
static void dspi_eoq_write(struct fsl_dspi *dspi)
{
int fifo_size = DSPI_FIFO_SIZE;
+ u16 xfer_cmd = dspi->tx_cmd;
/* Fill TX FIFO with as many transfers as possible */
while (dspi->len && fifo_size--) {
+ dspi->tx_cmd = xfer_cmd;
/* Request EOQF for last transfer in FIFO */
if (dspi->len == dspi->bytes_per_word || fifo_size == 0)
dspi->tx_cmd |= SPI_PUSHR_CMD_EOQ;
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index ec395a6..9da0bc5 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2143,8 +2143,17 @@ int spi_register_controller(struct spi_controller *ctlr)
*/
if (ctlr->num_chipselect == 0)
return -EINVAL;
- /* allocate dynamic bus number using Linux idr */
- if ((ctlr->bus_num < 0) && ctlr->dev.of_node) {
+ if (ctlr->bus_num >= 0) {
+ /* devices with a fixed bus num must check-in with the num */
+ mutex_lock(&board_lock);
+ id = idr_alloc(&spi_master_idr, ctlr, ctlr->bus_num,
+ ctlr->bus_num + 1, GFP_KERNEL);
+ mutex_unlock(&board_lock);
+ if (WARN(id < 0, "couldn't get idr"))
+ return id == -ENOSPC ? -EBUSY : id;
+ ctlr->bus_num = id;
+ } else if (ctlr->dev.of_node) {
+ /* allocate dynamic bus number using Linux idr */
id = of_alias_get_id(ctlr->dev.of_node, "spi");
if (id >= 0) {
ctlr->bus_num = id;
diff --git a/drivers/staging/erofs/Kconfig b/drivers/staging/erofs/Kconfig
index 96f6149..663b755 100644
--- a/drivers/staging/erofs/Kconfig
+++ b/drivers/staging/erofs/Kconfig
@@ -2,7 +2,7 @@
config EROFS_FS
tristate "EROFS filesystem support"
- depends on BROKEN
+ depends on BLOCK
help
EROFS(Enhanced Read-Only File System) is a lightweight
read-only file system with modern designs (eg. page-sized
diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c
index 1aec509..2df9768 100644
--- a/drivers/staging/erofs/super.c
+++ b/drivers/staging/erofs/super.c
@@ -340,7 +340,7 @@ static int erofs_read_super(struct super_block *sb,
goto err_sbread;
sb->s_magic = EROFS_SUPER_MAGIC;
- sb->s_flags |= MS_RDONLY | MS_NOATIME;
+ sb->s_flags |= SB_RDONLY | SB_NOATIME;
sb->s_maxbytes = MAX_LFS_FILESIZE;
sb->s_time_gran = 1;
@@ -627,7 +627,7 @@ static int erofs_remount(struct super_block *sb, int *flags, char *data)
{
BUG_ON(!sb_rdonly(sb));
- *flags |= MS_RDONLY;
+ *flags |= SB_RDONLY;
return 0;
}
diff --git a/drivers/staging/fbtft/TODO b/drivers/staging/fbtft/TODO
index 7e64c7e..a9f4802 100644
--- a/drivers/staging/fbtft/TODO
+++ b/drivers/staging/fbtft/TODO
@@ -2,3 +2,7 @@
GPIO descriptor API in <linux/gpio/consumer.h> and look up GPIO
lines from device tree, ACPI or board files, board files should
use <linux/gpio/machine.h>
+
+* convert all these over to drm_simple_display_pipe and submit for inclusion
+ into the DRM subsystem under drivers/gpu/drm - fbdev doesn't take any new
+ drivers anymore.
diff --git a/drivers/staging/gasket/TODO b/drivers/staging/gasket/TODO
index 6ff8e01..5b1865f 100644
--- a/drivers/staging/gasket/TODO
+++ b/drivers/staging/gasket/TODO
@@ -1,9 +1,22 @@
This is a list of things that need to be done to get this driver out of the
staging directory.
+
+- Implement the gasket framework's functionality through UIO instead of
+ introducing a new user-space drivers framework that is quite similar.
+
+ UIO provides the necessary bits to implement user-space drivers. Meanwhile
+ the gasket APIs adds some extra conveniences like PCI BAR mapping, and
+ MSI interrupts. Add these features to the UIO subsystem, then re-implement
+ the Apex driver as a basic UIO driver instead (include/linux/uio_driver.h)
+
- Document sysfs files with Documentation/ABI/ entries.
+
- Use misc interface instead of major number for driver version description.
+
- Add descriptions of module_param's
+
- apex_get_status() should actually check status.
+
- "drivers" should never be dealing with "raw" sysfs calls or mess around with
kobjects at all. The driver core should handle all of this for you
automaically. There should not be a need for raw attribute macros.
diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c
index da92c49..69cc508 100644
--- a/drivers/staging/vboxvideo/vbox_drv.c
+++ b/drivers/staging/vboxvideo/vbox_drv.c
@@ -59,6 +59,11 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ret = PTR_ERR(dev);
goto err_drv_alloc;
}
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_pci_enable;
+
dev->pdev = pdev;
pci_set_drvdata(pdev, dev);
@@ -75,6 +80,8 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err_drv_dev_register:
vbox_driver_unload(dev);
err_vbox_driver_load:
+ pci_disable_device(pdev);
+ err_pci_enable:
drm_dev_put(dev);
err_drv_alloc:
return ret;
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
index a83eac8..79836c8 100644
--- a/drivers/staging/vboxvideo/vbox_mode.c
+++ b/drivers/staging/vboxvideo/vbox_mode.c
@@ -323,6 +323,11 @@ static int vbox_crtc_page_flip(struct drm_crtc *crtc,
if (rc)
return rc;
+ mutex_lock(&vbox->hw_mutex);
+ vbox_set_view(crtc);
+ vbox_do_modeset(crtc, &crtc->mode);
+ mutex_unlock(&vbox->hw_mutex);
+
spin_lock_irqsave(&drm->event_lock, flags);
if (event)
diff --git a/drivers/staging/wilc1000/Makefile b/drivers/staging/wilc1000/Makefile
index f7b07c0..ee7e26b 100644
--- a/drivers/staging/wilc1000/Makefile
+++ b/drivers/staging/wilc1000/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_WILC1000) += wilc1000.o
ccflags-y += -DFIRMWARE_1002=\"atmel/wilc1002_firmware.bin\" \
-DFIRMWARE_1003=\"atmel/wilc1003_firmware.bin\"
@@ -11,9 +12,7 @@
wilc_wlan.o
obj-$(CONFIG_WILC1000_SDIO) += wilc1000-sdio.o
-wilc1000-sdio-objs += $(wilc1000-objs)
wilc1000-sdio-objs += wilc_sdio.o
obj-$(CONFIG_WILC1000_SPI) += wilc1000-spi.o
-wilc1000-spi-objs += $(wilc1000-objs)
wilc1000-spi-objs += wilc_spi.o
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 01cf4bd..3b8d237 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1038,8 +1038,8 @@ void wilc_netdev_cleanup(struct wilc *wilc)
}
kfree(wilc);
- wilc_debugfs_remove();
}
+EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
static const struct net_device_ops wilc_netdev_ops = {
.ndo_init = mac_init_fn,
@@ -1062,7 +1062,6 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
if (!wl)
return -ENOMEM;
- wilc_debugfs_init();
*wilc = wl;
wl->io_type = io_type;
wl->hif_func = ops;
@@ -1124,3 +1123,6 @@ int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
return 0;
}
+EXPORT_SYMBOL_GPL(wilc_netdev_init);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/wilc1000/wilc_debugfs.c b/drivers/staging/wilc1000/wilc_debugfs.c
index edc7287..8001df6 100644
--- a/drivers/staging/wilc1000/wilc_debugfs.c
+++ b/drivers/staging/wilc1000/wilc_debugfs.c
@@ -19,6 +19,7 @@ static struct dentry *wilc_dir;
#define DBG_LEVEL_ALL (DEBUG | INFO | WRN | ERR)
static atomic_t WILC_DEBUG_LEVEL = ATOMIC_INIT(ERR);
+EXPORT_SYMBOL_GPL(WILC_DEBUG_LEVEL);
static ssize_t wilc_debug_level_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
@@ -87,7 +88,7 @@ static struct wilc_debugfs_info_t debugfs_info[] = {
},
};
-int wilc_debugfs_init(void)
+static int __init wilc_debugfs_init(void)
{
int i;
struct wilc_debugfs_info_t *info;
@@ -103,10 +104,12 @@ int wilc_debugfs_init(void)
}
return 0;
}
+module_init(wilc_debugfs_init);
-void wilc_debugfs_remove(void)
+static void __exit wilc_debugfs_remove(void)
{
debugfs_remove_recursive(wilc_dir);
}
+module_exit(wilc_debugfs_remove);
#endif
diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c
index 6787b6e..8b184aa 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -417,6 +417,7 @@ void chip_allow_sleep(struct wilc *wilc)
wilc->hif_func->hif_write_reg(wilc, 0xf0, reg & ~BIT(0));
wilc->hif_func->hif_write_reg(wilc, 0xfa, 0);
}
+EXPORT_SYMBOL_GPL(chip_allow_sleep);
void chip_wakeup(struct wilc *wilc)
{
@@ -471,6 +472,7 @@ void chip_wakeup(struct wilc *wilc)
}
chip_ps_state = CHIP_WAKEDUP;
}
+EXPORT_SYMBOL_GPL(chip_wakeup);
void wilc_chip_sleep_manually(struct wilc *wilc)
{
@@ -484,6 +486,7 @@ void wilc_chip_sleep_manually(struct wilc *wilc)
chip_ps_state = CHIP_SLEEPING_MANUAL;
release_bus(wilc, RELEASE_ONLY);
}
+EXPORT_SYMBOL_GPL(wilc_chip_sleep_manually);
void host_wakeup_notify(struct wilc *wilc)
{
@@ -491,6 +494,7 @@ void host_wakeup_notify(struct wilc *wilc)
wilc->hif_func->hif_write_reg(wilc, 0x10b0, 1);
release_bus(wilc, RELEASE_ONLY);
}
+EXPORT_SYMBOL_GPL(host_wakeup_notify);
void host_sleep_notify(struct wilc *wilc)
{
@@ -498,6 +502,7 @@ void host_sleep_notify(struct wilc *wilc)
wilc->hif_func->hif_write_reg(wilc, 0x10ac, 1);
release_bus(wilc, RELEASE_ONLY);
}
+EXPORT_SYMBOL_GPL(host_sleep_notify);
int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count)
{
@@ -871,6 +876,7 @@ void wilc_handle_isr(struct wilc *wilc)
release_bus(wilc, RELEASE_ALLOW_SLEEP);
}
+EXPORT_SYMBOL_GPL(wilc_handle_isr);
int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer,
u32 buffer_size)
diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h
index 00d13b1..b81a73b 100644
--- a/drivers/staging/wilc1000/wilc_wlan_if.h
+++ b/drivers/staging/wilc1000/wilc_wlan_if.h
@@ -831,6 +831,4 @@ struct wilc;
int wilc_wlan_init(struct net_device *dev);
u32 wilc_get_chipid(struct wilc *wilc, bool update);
-int wilc_debugfs_init(void);
-void wilc_debugfs_remove(void);
#endif
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 5414c4a..27284a2 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -522,6 +522,8 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
return -EIO;
while (count > 0) {
+ int ret = 0;
+
spin_lock_irqsave(&hp->lock, flags);
rsize = hp->outbuf_size - hp->n_outbuf;
@@ -537,10 +539,13 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
}
if (hp->n_outbuf > 0)
- hvc_push(hp);
+ ret = hvc_push(hp);
spin_unlock_irqrestore(&hp->lock, flags);
+ if (!ret)
+ break;
+
if (count) {
if (hp->n_outbuf > 0)
hvc_flush(hp);
@@ -623,6 +628,15 @@ static int hvc_chars_in_buffer(struct tty_struct *tty)
#define MAX_TIMEOUT (2000)
static u32 timeout = MIN_TIMEOUT;
+/*
+ * Maximum number of bytes to get from the console driver if hvc_poll is
+ * called from driver (and can't sleep). Any more than this and we break
+ * and start polling with khvcd. This value was derived from from an OpenBMC
+ * console with the OPAL driver that results in about 0.25ms interrupts off
+ * latency.
+ */
+#define HVC_ATOMIC_READ_MAX 128
+
#define HVC_POLL_READ 0x00000001
#define HVC_POLL_WRITE 0x00000002
@@ -669,8 +683,8 @@ static int __hvc_poll(struct hvc_struct *hp, bool may_sleep)
if (!hp->irq_requested)
poll_mask |= HVC_POLL_READ;
+ read_again:
/* Read data if any */
-
count = tty_buffer_request_room(&hp->port, N_INBUF);
/* If flip is full, just reschedule a later read */
@@ -717,9 +731,23 @@ static int __hvc_poll(struct hvc_struct *hp, bool may_sleep)
#endif /* CONFIG_MAGIC_SYSRQ */
tty_insert_flip_char(&hp->port, buf[i], 0);
}
- if (n == count)
- poll_mask |= HVC_POLL_READ;
- read_total = n;
+ read_total += n;
+
+ if (may_sleep) {
+ /* Keep going until the flip is full */
+ spin_unlock_irqrestore(&hp->lock, flags);
+ cond_resched();
+ spin_lock_irqsave(&hp->lock, flags);
+ goto read_again;
+ } else if (read_total < HVC_ATOMIC_READ_MAX) {
+ /* Break and defer if it's a large read in atomic */
+ goto read_again;
+ }
+
+ /*
+ * Latency break, schedule another poll immediately.
+ */
+ poll_mask |= HVC_POLL_READ;
out:
/* Wakeup write queue if necessary */
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 27346d6..f9b40a9 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -780,20 +780,9 @@ static int acm_tty_write(struct tty_struct *tty,
}
if (acm->susp_count) {
- if (acm->putbuffer) {
- /* now to preserve order */
- usb_anchor_urb(acm->putbuffer->urb, &acm->delayed);
- acm->putbuffer = NULL;
- }
usb_anchor_urb(wb->urb, &acm->delayed);
spin_unlock_irqrestore(&acm->write_lock, flags);
return count;
- } else {
- if (acm->putbuffer) {
- /* at this point there is no good way to handle errors */
- acm_start_wb(acm, acm->putbuffer);
- acm->putbuffer = NULL;
- }
}
stat = acm_start_wb(acm, wb);
@@ -804,66 +793,6 @@ static int acm_tty_write(struct tty_struct *tty,
return count;
}
-static void acm_tty_flush_chars(struct tty_struct *tty)
-{
- struct acm *acm = tty->driver_data;
- struct acm_wb *cur;
- int err;
- unsigned long flags;
-
- spin_lock_irqsave(&acm->write_lock, flags);
-
- cur = acm->putbuffer;
- if (!cur) /* nothing to do */
- goto out;
-
- acm->putbuffer = NULL;
- err = usb_autopm_get_interface_async(acm->control);
- if (err < 0) {
- cur->use = 0;
- acm->putbuffer = cur;
- goto out;
- }
-
- if (acm->susp_count)
- usb_anchor_urb(cur->urb, &acm->delayed);
- else
- acm_start_wb(acm, cur);
-out:
- spin_unlock_irqrestore(&acm->write_lock, flags);
- return;
-}
-
-static int acm_tty_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct acm *acm = tty->driver_data;
- struct acm_wb *cur;
- int wbn;
- unsigned long flags;
-
-overflow:
- cur = acm->putbuffer;
- if (!cur) {
- spin_lock_irqsave(&acm->write_lock, flags);
- wbn = acm_wb_alloc(acm);
- if (wbn >= 0) {
- cur = &acm->wb[wbn];
- acm->putbuffer = cur;
- }
- spin_unlock_irqrestore(&acm->write_lock, flags);
- if (!cur)
- return 0;
- }
-
- if (cur->len == acm->writesize) {
- acm_tty_flush_chars(tty);
- goto overflow;
- }
-
- cur->buf[cur->len++] = ch;
- return 1;
-}
-
static int acm_tty_write_room(struct tty_struct *tty)
{
struct acm *acm = tty->driver_data;
@@ -1987,8 +1916,6 @@ static const struct tty_operations acm_ops = {
.cleanup = acm_tty_cleanup,
.hangup = acm_tty_hangup,
.write = acm_tty_write,
- .put_char = acm_tty_put_char,
- .flush_chars = acm_tty_flush_chars,
.write_room = acm_tty_write_room,
.ioctl = acm_tty_ioctl,
.throttle = acm_tty_throttle,
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index eacc116..ca06b20 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -96,7 +96,6 @@ struct acm {
unsigned long read_urbs_free;
struct urb *read_urbs[ACM_NR];
struct acm_rb read_buffers[ACM_NR];
- struct acm_wb *putbuffer; /* for acm_tty_put_char() */
int rx_buflimit;
spinlock_t read_lock;
u8 *notification_buffer; /* to reassemble fragmented notifications */
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index bec581f..656d247 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -460,7 +460,7 @@ static int service_outstanding_interrupt(struct wdm_device *desc)
set_bit(WDM_RESPONDING, &desc->flags);
spin_unlock_irq(&desc->iuspin);
- rv = usb_submit_urb(desc->response, GFP_KERNEL);
+ rv = usb_submit_urb(desc->response, GFP_ATOMIC);
spin_lock_irq(&desc->iuspin);
if (rv) {
dev_err(&desc->intf->dev,
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 50a2362ed..48277bb 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -246,6 +246,31 @@ int of_usb_update_otg_caps(struct device_node *np,
}
EXPORT_SYMBOL_GPL(of_usb_update_otg_caps);
+/**
+ * usb_of_get_companion_dev - Find the companion device
+ * @dev: the device pointer to find a companion
+ *
+ * Find the companion device from platform bus.
+ *
+ * Takes a reference to the returned struct device which needs to be dropped
+ * after use.
+ *
+ * Return: On success, a pointer to the companion device, %NULL on failure.
+ */
+struct device *usb_of_get_companion_dev(struct device *dev)
+{
+ struct device_node *node;
+ struct platform_device *pdev = NULL;
+
+ node = of_parse_phandle(dev->of_node, "companion", 0);
+ if (node)
+ pdev = of_find_device_by_node(node);
+
+ of_node_put(node);
+
+ return pdev ? &pdev->dev : NULL;
+}
+EXPORT_SYMBOL_GPL(usb_of_get_companion_dev);
#endif
MODULE_LICENSE("GPL");
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 66fe1b7..0343246 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -515,8 +515,6 @@ static int resume_common(struct device *dev, int event)
event == PM_EVENT_RESTORE);
if (retval) {
dev_err(dev, "PCI post-resume error %d!\n", retval);
- if (hcd->shared_hcd)
- usb_hc_died(hcd->shared_hcd);
usb_hc_died(hcd);
}
}
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 228672f..bfa5eda 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1341,6 +1341,11 @@ void usb_enable_interface(struct usb_device *dev,
* is submitted that needs that bandwidth. Some other operating systems
* allocate bandwidth early, when a configuration is chosen.
*
+ * xHCI reserves bandwidth and configures the alternate setting in
+ * usb_hcd_alloc_bandwidth(). If it fails the original interface altsetting
+ * may be disabled. Drivers cannot rely on any particular alternate
+ * setting being in effect after a failure.
+ *
* This call is synchronous, and may not be used in an interrupt context.
* Also, drivers must not change altsettings while urbs are scheduled for
* endpoints in that interface; all such urbs must first be completed
@@ -1376,6 +1381,12 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
alternate);
return -EINVAL;
}
+ /*
+ * usb3 hosts configure the interface in usb_hcd_alloc_bandwidth,
+ * including freeing dropped endpoint ring buffers.
+ * Make sure the interface endpoints are flushed before that
+ */
+ usb_disable_interface(dev, iface, false);
/* Make sure we have enough bandwidth for this alternate interface.
* Remove the current alt setting and add the new alt setting.
diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c
index fd77442..651708d 100644
--- a/drivers/usb/core/of.c
+++ b/drivers/usb/core/of.c
@@ -105,29 +105,3 @@ usb_of_get_interface_node(struct usb_device *udev, u8 config, u8 ifnum)
return NULL;
}
EXPORT_SYMBOL_GPL(usb_of_get_interface_node);
-
-/**
- * usb_of_get_companion_dev - Find the companion device
- * @dev: the device pointer to find a companion
- *
- * Find the companion device from platform bus.
- *
- * Takes a reference to the returned struct device which needs to be dropped
- * after use.
- *
- * Return: On success, a pointer to the companion device, %NULL on failure.
- */
-struct device *usb_of_get_companion_dev(struct device *dev)
-{
- struct device_node *node;
- struct platform_device *pdev = NULL;
-
- node = of_parse_phandle(dev->of_node, "companion", 0);
- if (node)
- pdev = of_find_device_by_node(node);
-
- of_node_put(node);
-
- return pdev ? &pdev->dev : NULL;
-}
-EXPORT_SYMBOL_GPL(usb_of_get_companion_dev);
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 097057d..e77dfe5 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -178,6 +178,10 @@ static const struct usb_device_id usb_quirk_list[] = {
/* CBM - Flash disk */
{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */
+ { USB_DEVICE(0x0218, 0x0201), .driver_info =
+ USB_QUIRK_CONFIG_INTF_STRINGS },
+
/* WORLDE easy key (easykey.25) MIDI controller */
{ USB_DEVICE(0x0218, 0x0401), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
@@ -406,6 +410,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x2040, 0x7200), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
+ /* DJI CineSSD */
+ { USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
+
/* INTEL VALUE SSD */
{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 9a53a58..5776428 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -412,8 +412,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
(unsigned long)res->start, hsotg->regs);
- hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg);
-
retval = dwc2_lowlevel_hw_init(hsotg);
if (retval)
return retval;
@@ -438,6 +436,8 @@ static int dwc2_driver_probe(struct platform_device *dev)
if (retval)
return retval;
+ hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg);
+
retval = dwc2_get_dr_mode(hsotg);
if (retval)
goto error;
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index 40bf9e0..4c2771c 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -180,8 +180,7 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
-static int dwc3_of_simple_runtime_suspend(struct device *dev)
+static int __maybe_unused dwc3_of_simple_runtime_suspend(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
int i;
@@ -192,7 +191,7 @@ static int dwc3_of_simple_runtime_suspend(struct device *dev)
return 0;
}
-static int dwc3_of_simple_runtime_resume(struct device *dev)
+static int __maybe_unused dwc3_of_simple_runtime_resume(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
int ret;
@@ -210,7 +209,7 @@ static int dwc3_of_simple_runtime_resume(struct device *dev)
return 0;
}
-static int dwc3_of_simple_suspend(struct device *dev)
+static int __maybe_unused dwc3_of_simple_suspend(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
@@ -220,7 +219,7 @@ static int dwc3_of_simple_suspend(struct device *dev)
return 0;
}
-static int dwc3_of_simple_resume(struct device *dev)
+static int __maybe_unused dwc3_of_simple_resume(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
@@ -229,7 +228,6 @@ static int dwc3_of_simple_resume(struct device *dev)
return 0;
}
-#endif
static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dwc3_of_simple_suspend, dwc3_of_simple_resume)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 5edd794..1286076 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -85,8 +85,8 @@ static int dwc3_byt_enable_ulpi_refclock(struct pci_dev *pci)
u32 value;
reg = pcim_iomap(pci, GP_RWBAR, 0);
- if (IS_ERR(reg))
- return PTR_ERR(reg);
+ if (!reg)
+ return -ENOMEM;
value = readl(reg + GP_RWREG1);
if (!(value & GP_RWREG1_ULPI_REFCLK_DISABLE))
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 032ea7d..2b53194 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -473,7 +473,6 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3_ep *dep)
/**
* dwc3_gadget_start_config - configure ep resources
- * @dwc: pointer to our controller context structure
* @dep: endpoint that is being enabled
*
* Issue a %DWC3_DEPCMD_DEPSTARTCFG command to @dep. After the command's
diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index 53a48f5..587c503 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1063,12 +1063,15 @@ static const struct usb_gadget_ops fotg210_gadget_ops = {
static int fotg210_udc_remove(struct platform_device *pdev)
{
struct fotg210_udc *fotg210 = platform_get_drvdata(pdev);
+ int i;
usb_del_gadget_udc(&fotg210->gadget);
iounmap(fotg210->reg);
free_irq(platform_get_irq(pdev, 0), fotg210);
fotg210_ep_free_request(&fotg210->ep[0]->ep, fotg210->ep0_req);
+ for (i = 0; i < FOTG210_MAX_NUM_EP; i++)
+ kfree(fotg210->ep[i]);
kfree(fotg210);
return 0;
@@ -1099,7 +1102,7 @@ static int fotg210_udc_probe(struct platform_device *pdev)
/* initialize udc */
fotg210 = kzalloc(sizeof(struct fotg210_udc), GFP_KERNEL);
if (fotg210 == NULL)
- goto err_alloc;
+ goto err;
for (i = 0; i < FOTG210_MAX_NUM_EP; i++) {
_ep[i] = kzalloc(sizeof(struct fotg210_ep), GFP_KERNEL);
@@ -1111,7 +1114,7 @@ static int fotg210_udc_probe(struct platform_device *pdev)
fotg210->reg = ioremap(res->start, resource_size(res));
if (fotg210->reg == NULL) {
pr_err("ioremap error.\n");
- goto err_map;
+ goto err_alloc;
}
spin_lock_init(&fotg210->lock);
@@ -1159,7 +1162,7 @@ static int fotg210_udc_probe(struct platform_device *pdev)
fotg210->ep0_req = fotg210_ep_alloc_request(&fotg210->ep[0]->ep,
GFP_KERNEL);
if (fotg210->ep0_req == NULL)
- goto err_req;
+ goto err_map;
fotg210_init(fotg210);
@@ -1187,12 +1190,14 @@ static int fotg210_udc_probe(struct platform_device *pdev)
fotg210_ep_free_request(&fotg210->ep[0]->ep, fotg210->ep0_req);
err_map:
- if (fotg210->reg)
- iounmap(fotg210->reg);
+ iounmap(fotg210->reg);
err_alloc:
+ for (i = 0; i < FOTG210_MAX_NUM_EP; i++)
+ kfree(fotg210->ep[i]);
kfree(fotg210);
+err:
return ret;
}
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 318246d..b02ab2a 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -1545,11 +1545,14 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
writel(tmp | BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
} else {
writel(tmp & ~BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
- stop_activity(dev, dev->driver);
+ stop_activity(dev, NULL);
}
spin_unlock_irqrestore(&dev->lock, flags);
+ if (!is_on && dev->driver)
+ dev->driver->disconnect(&dev->gadget);
+
return 0;
}
@@ -2466,8 +2469,11 @@ static void stop_activity(struct net2280 *dev, struct usb_gadget_driver *driver)
nuke(&dev->ep[i]);
/* report disconnect; the driver is already quiesced */
- if (driver)
+ if (driver) {
+ spin_unlock(&dev->lock);
driver->disconnect(&dev->gadget);
+ spin_lock(&dev->lock);
+ }
usb_reinit(dev);
}
@@ -3341,6 +3347,8 @@ static void handle_stat0_irqs(struct net2280 *dev, u32 stat)
BIT(PCI_RETRY_ABORT_INTERRUPT))
static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
+__releases(dev->lock)
+__acquires(dev->lock)
{
struct net2280_ep *ep;
u32 tmp, num, mask, scratch;
@@ -3381,12 +3389,14 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
if (disconnect || reset) {
stop_activity(dev, dev->driver);
ep0_start(dev);
+ spin_unlock(&dev->lock);
if (reset)
usb_gadget_udc_reset
(&dev->gadget, dev->driver);
else
(dev->driver->disconnect)
(&dev->gadget);
+ spin_lock(&dev->lock);
return;
}
}
@@ -3405,6 +3415,7 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
tmp = BIT(SUSPEND_REQUEST_CHANGE_INTERRUPT);
if (stat & tmp) {
writel(tmp, &dev->regs->irqstat1);
+ spin_unlock(&dev->lock);
if (stat & BIT(SUSPEND_REQUEST_INTERRUPT)) {
if (dev->driver->suspend)
dev->driver->suspend(&dev->gadget);
@@ -3415,6 +3426,7 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
dev->driver->resume(&dev->gadget);
/* at high speed, note erratum 0133 */
}
+ spin_lock(&dev->lock);
stat &= ~tmp;
}
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 1f879b3..e1656f3 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -812,12 +812,15 @@ static void usb3_irq_epc_int_1_speed(struct renesas_usb3 *usb3)
switch (speed) {
case USB_STA_SPEED_SS:
usb3->gadget.speed = USB_SPEED_SUPER;
+ usb3->gadget.ep0->maxpacket = USB3_EP0_SS_MAX_PACKET_SIZE;
break;
case USB_STA_SPEED_HS:
usb3->gadget.speed = USB_SPEED_HIGH;
+ usb3->gadget.ep0->maxpacket = USB3_EP0_HSFS_MAX_PACKET_SIZE;
break;
case USB_STA_SPEED_FS:
usb3->gadget.speed = USB_SPEED_FULL;
+ usb3->gadget.ep0->maxpacket = USB3_EP0_HSFS_MAX_PACKET_SIZE;
break;
default:
usb3->gadget.speed = USB_SPEED_UNKNOWN;
@@ -2513,7 +2516,7 @@ static int renesas_usb3_init_ep(struct renesas_usb3 *usb3, struct device *dev,
/* for control pipe */
usb3->gadget.ep0 = &usb3_ep->ep;
usb_ep_set_maxpacket_limit(&usb3_ep->ep,
- USB3_EP0_HSFS_MAX_PACKET_SIZE);
+ USB3_EP0_SS_MAX_PACKET_SIZE);
usb3_ep->ep.caps.type_control = true;
usb3_ep->ep.caps.dir_in = true;
usb3_ep->ep.caps.dir_out = true;
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 072bd5d..5b8a3d95 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -2555,7 +2555,7 @@ static int u132_get_frame(struct usb_hcd *hcd)
} else {
int frame = 0;
dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
- msleep(100);
+ mdelay(100);
return frame;
}
}
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index ef350c3..b1f27aa 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1613,6 +1613,10 @@ void xhci_endpoint_copy(struct xhci_hcd *xhci,
in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2;
in_ep_ctx->deq = out_ep_ctx->deq;
in_ep_ctx->tx_info = out_ep_ctx->tx_info;
+ if (xhci->quirks & XHCI_MTK_HOST) {
+ in_ep_ctx->reserved[0] = out_ep_ctx->reserved[0];
+ in_ep_ctx->reserved[1] = out_ep_ctx->reserved[1];
+ }
}
/* Copy output xhci_slot_ctx to the input xhci_slot_ctx.
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 8dc77e34..94e93924 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -153,7 +153,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
{
const struct xhci_plat_priv *priv_match;
const struct hc_driver *driver;
- struct device *sysdev;
+ struct device *sysdev, *tmpdev;
struct xhci_hcd *xhci;
struct resource *res;
struct usb_hcd *hcd;
@@ -273,19 +273,24 @@ static int xhci_plat_probe(struct platform_device *pdev)
goto disable_clk;
}
- if (device_property_read_bool(sysdev, "usb2-lpm-disable"))
- xhci->quirks |= XHCI_HW_LPM_DISABLE;
-
- if (device_property_read_bool(sysdev, "usb3-lpm-capable"))
- xhci->quirks |= XHCI_LPM_SUPPORT;
-
- if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
- xhci->quirks |= XHCI_BROKEN_PORT_PED;
-
/* imod_interval is the interrupt moderation value in nanoseconds. */
xhci->imod_interval = 40000;
- device_property_read_u32(sysdev, "imod-interval-ns",
- &xhci->imod_interval);
+
+ /* Iterate over all parent nodes for finding quirks */
+ for (tmpdev = &pdev->dev; tmpdev; tmpdev = tmpdev->parent) {
+
+ if (device_property_read_bool(tmpdev, "usb2-lpm-disable"))
+ xhci->quirks |= XHCI_HW_LPM_DISABLE;
+
+ if (device_property_read_bool(tmpdev, "usb3-lpm-capable"))
+ xhci->quirks |= XHCI_LPM_SUPPORT;
+
+ if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
+ xhci->quirks |= XHCI_BROKEN_PORT_PED;
+
+ device_property_read_u32(tmpdev, "imod-interval-ns",
+ &xhci->imod_interval);
+ }
hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
if (IS_ERR(hcd->usb_phy)) {
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 61f48b1..0420eef 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -37,6 +37,21 @@ static unsigned long long quirks;
module_param(quirks, ullong, S_IRUGO);
MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default");
+static bool td_on_ring(struct xhci_td *td, struct xhci_ring *ring)
+{
+ struct xhci_segment *seg = ring->first_seg;
+
+ if (!td || !td->start_seg)
+ return false;
+ do {
+ if (seg == td->start_seg)
+ return true;
+ seg = seg->next;
+ } while (seg && seg != ring->first_seg);
+
+ return false;
+}
+
/* TODO: copied from ehci-hcd.c - can this be refactored? */
/*
* xhci_handshake - spin reading hc until handshake completes or fails
@@ -1571,6 +1586,21 @@ static int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
goto done;
}
+ /*
+ * check ring is not re-allocated since URB was enqueued. If it is, then
+ * make sure none of the ring related pointers in this URB private data
+ * are touched, such as td_list, otherwise we overwrite freed data
+ */
+ if (!td_on_ring(&urb_priv->td[0], ep_ring)) {
+ xhci_err(xhci, "Canceled URB td not found on endpoint ring");
+ for (i = urb_priv->num_tds_done; i < urb_priv->num_tds; i++) {
+ td = &urb_priv->td[i];
+ if (!list_empty(&td->cancelled_td_list))
+ list_del_init(&td->cancelled_td_list);
+ }
+ goto err_giveback;
+ }
+
if (xhci->xhc_state & XHCI_STATE_HALTED) {
xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
"HC halted, freeing TD manually.");
diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c
index 82f2206..b5d6616 100644
--- a/drivers/usb/misc/uss720.c
+++ b/drivers/usb/misc/uss720.c
@@ -369,7 +369,7 @@ static unsigned char parport_uss720_frob_control(struct parport *pp, unsigned ch
mask &= 0x0f;
val &= 0x0f;
d = (priv->reg[1] & (~mask)) ^ val;
- if (set_1284_register(pp, 2, d, GFP_KERNEL))
+ if (set_1284_register(pp, 2, d, GFP_ATOMIC))
return 0;
priv->reg[1] = d;
return d & 0xf;
@@ -379,7 +379,7 @@ static unsigned char parport_uss720_read_status(struct parport *pp)
{
unsigned char ret;
- if (get_1284_register(pp, 1, &ret, GFP_KERNEL))
+ if (get_1284_register(pp, 1, &ret, GFP_ATOMIC))
return 0;
return ret & 0xf8;
}
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 3be40ea..6d9fd5f 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -413,6 +413,9 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count,
spin_unlock_irqrestore(&dev->lock, flags);
mutex_unlock(&dev->io_mutex);
+ if (WARN_ON_ONCE(len >= sizeof(in_buffer)))
+ return -EIO;
+
return simple_read_from_buffer(buffer, count, ppos, in_buffer, len);
}
@@ -421,13 +424,13 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer,
{
struct usb_yurex *dev;
int i, set = 0, retval = 0;
- char buffer[16];
+ char buffer[16 + 1];
char *data = buffer;
unsigned long long c, c2 = 0;
signed long timeout = 0;
DEFINE_WAIT(wait);
- count = min(sizeof(buffer), count);
+ count = min(sizeof(buffer) - 1, count);
dev = file->private_data;
/* verify that we actually have some data to write */
@@ -446,6 +449,7 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer,
retval = -EFAULT;
goto error;
}
+ buffer[count] = 0;
memset(dev->cntl_buffer, CMD_PADDING, YUREX_BUF_SIZE);
switch (buffer[0]) {
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index eecfd06..d045d84 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -107,8 +107,12 @@ static int mtu3_device_enable(struct mtu3 *mtu)
(SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN |
SSUSB_U2_PORT_HOST_SEL));
- if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
+ if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG) {
mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
+ if (mtu->is_u3_ip)
+ mtu3_setbits(ibase, SSUSB_U3_CTRL(0),
+ SSUSB_U3_PORT_DUAL_MODE);
+ }
return ssusb_check_clocks(mtu->ssusb, check_clk);
}
diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h
index 6ee3714..a45bb25 100644
--- a/drivers/usb/mtu3/mtu3_hw_regs.h
+++ b/drivers/usb/mtu3/mtu3_hw_regs.h
@@ -459,6 +459,7 @@
/* U3D_SSUSB_U3_CTRL_0P */
#define SSUSB_U3_PORT_SSP_SPEED BIT(9)
+#define SSUSB_U3_PORT_DUAL_MODE BIT(7)
#define SSUSB_U3_PORT_HOST_SEL BIT(2)
#define SSUSB_U3_PORT_PDN BIT(1)
#define SSUSB_U3_PORT_DIS BIT(0)
diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h
index e53c682..9bbcee3 100644
--- a/drivers/usb/serial/io_ti.h
+++ b/drivers/usb/serial/io_ti.h
@@ -173,7 +173,7 @@ struct ump_interrupt {
} __attribute__((packed));
-#define TIUMP_GET_PORT_FROM_CODE(c) (((c) >> 4) - 3)
+#define TIUMP_GET_PORT_FROM_CODE(c) (((c) >> 6) & 0x01)
#define TIUMP_GET_FUNC_FROM_CODE(c) ((c) & 0x0f)
#define TIUMP_INTERRUPT_CODE_LSR 0x03
#define TIUMP_INTERRUPT_CODE_MSR 0x04
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 3010878..e3c5832 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1119,7 +1119,7 @@ static void ti_break(struct tty_struct *tty, int break_state)
static int ti_get_port_from_code(unsigned char code)
{
- return (code >> 4) - 3;
+ return (code >> 6) & 0x01;
}
static int ti_get_func_from_code(unsigned char code)
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index c267f28..e227bb5 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -376,6 +376,15 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
return 0;
}
+ if ((us->fflags & US_FL_NO_ATA_1X) &&
+ (srb->cmnd[0] == ATA_12 || srb->cmnd[0] == ATA_16)) {
+ memcpy(srb->sense_buffer, usb_stor_sense_invalidCDB,
+ sizeof(usb_stor_sense_invalidCDB));
+ srb->result = SAM_STAT_CHECK_CONDITION;
+ done(srb);
+ return 0;
+ }
+
/* enqueue the command and wake up the control thread */
srb->scsi_done = done;
us->srb = srb;
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 9e9de545..1f7b401 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -842,6 +842,27 @@ static int uas_slave_configure(struct scsi_device *sdev)
sdev->skip_ms_page_8 = 1;
sdev->wce_default_on = 1;
}
+
+ /*
+ * Some disks return the total number of blocks in response
+ * to READ CAPACITY rather than the highest block number.
+ * If this device makes that mistake, tell the sd driver.
+ */
+ if (devinfo->flags & US_FL_FIX_CAPACITY)
+ sdev->fix_capacity = 1;
+
+ /*
+ * Some devices don't like MODE SENSE with page=0x3f,
+ * which is the command used for checking if a device
+ * is write-protected. Now that we tell the sd driver
+ * to do a 192-byte transfer with this command the
+ * majority of devices work fine, but a few still can't
+ * handle it. The sd driver will simply assume those
+ * devices are write-enabled.
+ */
+ if (devinfo->flags & US_FL_NO_WP_DETECT)
+ sdev->skip_ms_page_3f = 1;
+
scsi_change_queue_depth(sdev, devinfo->qdepth - 2);
return 0;
}
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 22fcfcc..f7f83b21 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2288,6 +2288,13 @@ UNUSUAL_DEV( 0x2735, 0x100b, 0x0000, 0x9999,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_GO_SLOW ),
+/* Reported-by: Tim Anderson <tsa@biglakesoftware.com> */
+UNUSUAL_DEV( 0x2ca3, 0x0031, 0x0000, 0x9999,
+ "DJI",
+ "CineSSD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_NO_ATA_1X),
+
/*
* Reported by Frederic Marchal <frederic.marchal@wowcompany.com>
* Mio Moov 330
diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
index 95a2b10..76299b6 100644
--- a/drivers/usb/typec/bus.c
+++ b/drivers/usb/typec/bus.c
@@ -255,12 +255,13 @@ EXPORT_SYMBOL_GPL(typec_altmode_unregister_driver);
/* API for the port drivers */
/**
- * typec_match_altmode - Match SVID to an array of alternate modes
+ * typec_match_altmode - Match SVID and mode to an array of alternate modes
* @altmodes: Array of alternate modes
- * @n: Number of elements in the array, or -1 for NULL termiated arrays
+ * @n: Number of elements in the array, or -1 for NULL terminated arrays
* @svid: Standard or Vendor ID to match with
+ * @mode: Mode to match with
*
- * Return pointer to an alternate mode with SVID mathing @svid, or NULL when no
+ * Return pointer to an alternate mode with SVID matching @svid, or NULL when no
* match is found.
*/
struct typec_altmode *typec_match_altmode(struct typec_altmode **altmodes,
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index c202975..e61dffb 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -1484,7 +1484,6 @@ EXPORT_SYMBOL_GPL(typec_set_mode);
* typec_port_register_altmode - Register USB Type-C Port Alternate Mode
* @port: USB Type-C Port that supports the alternate mode
* @desc: Description of the alternate mode
- * @drvdata: Private pointer to driver specific info
*
* This routine is used to register an alternate mode that @port is capable of
* supporting.
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index b459edf..90d387b 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -79,15 +79,19 @@
This value is used to allocate enough space in internal
tables needed for physical memory administration.
-config XEN_SCRUB_PAGES
- bool "Scrub pages before returning them to system"
+config XEN_SCRUB_PAGES_DEFAULT
+ bool "Scrub pages before returning them to system by default"
depends on XEN_BALLOON
default y
help
Scrub pages before returning them to the system for reuse by
other domains. This makes sure that any confidential data
is not accidentally visible to other domains. Is it more
- secure, but slightly less efficient.
+ secure, but slightly less efficient. This can be controlled with
+ xen_scrub_pages=0 parameter and
+ /sys/devices/system/xen_memory/xen_memory0/scrub_pages.
+ This option only sets the default value.
+
If in doubt, say yes.
config XEN_DEV_EVTCHN
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index d4265c8..b1357aa 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -19,15 +19,16 @@ static void enable_hotplug_cpu(int cpu)
static void disable_hotplug_cpu(int cpu)
{
- if (cpu_online(cpu)) {
- lock_device_hotplug();
+ if (!cpu_is_hotpluggable(cpu))
+ return;
+ lock_device_hotplug();
+ if (cpu_online(cpu))
device_offline(get_cpu_device(cpu));
- unlock_device_hotplug();
- }
- if (cpu_present(cpu))
+ if (!cpu_online(cpu) && cpu_present(cpu)) {
xen_arch_unregister_cpu(cpu);
-
- set_cpu_present(cpu, false);
+ set_cpu_present(cpu, false);
+ }
+ unlock_device_hotplug();
}
static int vcpu_online(unsigned int cpu)
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 08e4af0..e6c1934 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -138,7 +138,7 @@ static int set_evtchn_to_irq(unsigned evtchn, unsigned irq)
clear_evtchn_to_irq_row(row);
}
- evtchn_to_irq[EVTCHN_ROW(evtchn)][EVTCHN_COL(evtchn)] = irq;
+ evtchn_to_irq[row][col] = irq;
return 0;
}
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 57390c7..b0b02a5 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -492,12 +492,19 @@ static bool in_range(struct gntdev_grant_map *map,
return true;
}
-static void unmap_if_in_range(struct gntdev_grant_map *map,
- unsigned long start, unsigned long end)
+static int unmap_if_in_range(struct gntdev_grant_map *map,
+ unsigned long start, unsigned long end,
+ bool blockable)
{
unsigned long mstart, mend;
int err;
+ if (!in_range(map, start, end))
+ return 0;
+
+ if (!blockable)
+ return -EAGAIN;
+
mstart = max(start, map->vma->vm_start);
mend = min(end, map->vma->vm_end);
pr_debug("map %d+%d (%lx %lx), range %lx %lx, mrange %lx %lx\n",
@@ -508,6 +515,8 @@ static void unmap_if_in_range(struct gntdev_grant_map *map,
(mstart - map->vma->vm_start) >> PAGE_SHIFT,
(mend - mstart) >> PAGE_SHIFT);
WARN_ON(err);
+
+ return 0;
}
static int mn_invl_range_start(struct mmu_notifier *mn,
@@ -519,25 +528,20 @@ static int mn_invl_range_start(struct mmu_notifier *mn,
struct gntdev_grant_map *map;
int ret = 0;
- /* TODO do we really need a mutex here? */
if (blockable)
mutex_lock(&priv->lock);
else if (!mutex_trylock(&priv->lock))
return -EAGAIN;
list_for_each_entry(map, &priv->maps, next) {
- if (in_range(map, start, end)) {
- ret = -EAGAIN;
+ ret = unmap_if_in_range(map, start, end, blockable);
+ if (ret)
goto out_unlock;
- }
- unmap_if_in_range(map, start, end);
}
list_for_each_entry(map, &priv->freeable_maps, next) {
- if (in_range(map, start, end)) {
- ret = -EAGAIN;
+ ret = unmap_if_in_range(map, start, end, blockable);
+ if (ret)
goto out_unlock;
- }
- unmap_if_in_range(map, start, end);
}
out_unlock:
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index c93d8ef..5bb01a6 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -280,9 +280,11 @@ static void sysrq_handler(struct xenbus_watch *watch, const char *path,
/*
* The Xenstore watch fires directly after registering it and
* after a suspend/resume cycle. So ENOENT is no error but
- * might happen in those cases.
+ * might happen in those cases. ERANGE is observed when we get
+ * an empty value (''), this happens when we acknowledge the
+ * request by writing '\0' below.
*/
- if (err != -ENOENT)
+ if (err != -ENOENT && err != -ERANGE)
pr_err("Error %d reading sysrq code in control/sysrq\n",
err);
xenbus_transaction_end(xbt, 1);
diff --git a/drivers/xen/mem-reservation.c b/drivers/xen/mem-reservation.c
index 084799c..3782cf0 100644
--- a/drivers/xen/mem-reservation.c
+++ b/drivers/xen/mem-reservation.c
@@ -14,6 +14,10 @@
#include <xen/interface/memory.h>
#include <xen/mem-reservation.h>
+#include <linux/moduleparam.h>
+
+bool __read_mostly xen_scrub_pages = IS_ENABLED(CONFIG_XEN_SCRUB_PAGES_DEFAULT);
+core_param(xen_scrub_pages, xen_scrub_pages, bool, 0);
/*
* Use one extent per PAGE_SIZE to avoid to break down the page into
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index 294f35c..63c1494 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -44,6 +44,7 @@
#include <xen/xenbus.h>
#include <xen/features.h>
#include <xen/page.h>
+#include <xen/mem-reservation.h>
#define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10))
@@ -137,6 +138,7 @@ static DEVICE_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay);
static DEVICE_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay);
static DEVICE_ULONG_ATTR(retry_count, 0444, balloon_stats.retry_count);
static DEVICE_ULONG_ATTR(max_retry_count, 0644, balloon_stats.max_retry_count);
+static DEVICE_BOOL_ATTR(scrub_pages, 0644, xen_scrub_pages);
static ssize_t show_target_kb(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -203,6 +205,7 @@ static struct attribute *balloon_attrs[] = {
&dev_attr_max_schedule_delay.attr.attr,
&dev_attr_retry_count.attr.attr,
&dev_attr_max_retry_count.attr.attr,
+ &dev_attr_scrub_pages.attr.attr,
NULL
};
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 35c83fe..abcd78e 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -6,6 +6,7 @@
select CRYPTO_MD4
select CRYPTO_MD5
select CRYPTO_SHA256
+ select CRYPTO_SHA512
select CRYPTO_CMAC
select CRYPTO_HMAC
select CRYPTO_ARC4
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index dc2f4cf..5657b79 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -601,10 +601,15 @@ CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses)
}
count = 0;
+ /*
+ * We know that all the name entries in the protocols array
+ * are short (< 16 bytes anyway) and are NUL terminated.
+ */
for (i = 0; i < CIFS_NUM_PROT; i++) {
- strncpy(pSMB->DialectsArray+count, protocols[i].name, 16);
- count += strlen(protocols[i].name) + 1;
- /* null at end of source and target buffers anyway */
+ size_t len = strlen(protocols[i].name) + 1;
+
+ memcpy(pSMB->DialectsArray+count, protocols[i].name, len);
+ count += len;
}
inc_rfc1001_len(pSMB, count);
pSMB->ByteCount = cpu_to_le16(count);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index dacb2c0..6926685 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -402,9 +402,17 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
(struct smb_com_transaction_change_notify_rsp *)buf;
struct file_notify_information *pnotify;
__u32 data_offset = 0;
+ size_t len = srv->total_read - sizeof(pSMBr->hdr.smb_buf_length);
+
if (get_bcc(buf) > sizeof(struct file_notify_information)) {
data_offset = le32_to_cpu(pSMBr->DataOffset);
+ if (data_offset >
+ len - sizeof(struct file_notify_information)) {
+ cifs_dbg(FYI, "invalid data_offset %u\n",
+ data_offset);
+ return true;
+ }
pnotify = (struct file_notify_information *)
((char *)&pSMBr->hdr.Protocol + data_offset);
cifs_dbg(FYI, "dnotify on %s Action: 0x%x\n",
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index eeab81c..e169e1a 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -376,8 +376,15 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
new_entry = old_entry + sizeof(FIND_FILE_STANDARD_INFO) +
pfData->FileNameLength;
- } else
- new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset);
+ } else {
+ u32 next_offset = le32_to_cpu(pDirInfo->NextEntryOffset);
+
+ if (old_entry + next_offset < old_entry) {
+ cifs_dbg(VFS, "invalid offset %u\n", next_offset);
+ return NULL;
+ }
+ new_entry = old_entry + next_offset;
+ }
cifs_dbg(FYI, "new entry %p old entry %p\n", new_entry, old_entry);
/* validate that new_entry is not past end of SMB */
if (new_entry >= end_of_smb) {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index c08acfc..f54d07b 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2459,14 +2459,14 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
/* We check for obvious errors in the output buffer length and offset */
if (*plen == 0)
goto ioctl_exit; /* server returned no data */
- else if (*plen > 0xFF00) {
+ else if (*plen > rsp_iov.iov_len || *plen > 0xFF00) {
cifs_dbg(VFS, "srv returned invalid ioctl length: %d\n", *plen);
*plen = 0;
rc = -EIO;
goto ioctl_exit;
}
- if (rsp_iov.iov_len < le32_to_cpu(rsp->OutputOffset) + *plen) {
+ if (rsp_iov.iov_len - *plen < le32_to_cpu(rsp->OutputOffset)) {
cifs_dbg(VFS, "Malformed ioctl resp: len %d offset %d\n", *plen,
le32_to_cpu(rsp->OutputOffset));
*plen = 0;
@@ -3577,33 +3577,38 @@ num_entries(char *bufstart, char *end_of_buf, char **lastentry, size_t size)
int len;
unsigned int entrycount = 0;
unsigned int next_offset = 0;
- FILE_DIRECTORY_INFO *entryptr;
+ char *entryptr;
+ FILE_DIRECTORY_INFO *dir_info;
if (bufstart == NULL)
return 0;
- entryptr = (FILE_DIRECTORY_INFO *)bufstart;
+ entryptr = bufstart;
while (1) {
- entryptr = (FILE_DIRECTORY_INFO *)
- ((char *)entryptr + next_offset);
-
- if ((char *)entryptr + size > end_of_buf) {
+ if (entryptr + next_offset < entryptr ||
+ entryptr + next_offset > end_of_buf ||
+ entryptr + next_offset + size > end_of_buf) {
cifs_dbg(VFS, "malformed search entry would overflow\n");
break;
}
- len = le32_to_cpu(entryptr->FileNameLength);
- if ((char *)entryptr + len + size > end_of_buf) {
+ entryptr = entryptr + next_offset;
+ dir_info = (FILE_DIRECTORY_INFO *)entryptr;
+
+ len = le32_to_cpu(dir_info->FileNameLength);
+ if (entryptr + len < entryptr ||
+ entryptr + len > end_of_buf ||
+ entryptr + len + size > end_of_buf) {
cifs_dbg(VFS, "directory entry name would overflow frame end of buf %p\n",
end_of_buf);
break;
}
- *lastentry = (char *)entryptr;
+ *lastentry = entryptr;
entrycount++;
- next_offset = le32_to_cpu(entryptr->NextEntryOffset);
+ next_offset = le32_to_cpu(dir_info->NextEntryOffset);
if (!next_offset)
break;
}
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index e2902d3..f93f988 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -76,7 +76,7 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
else if (unlikely(rlen < EXT4_DIR_REC_LEN(de->name_len)))
error_msg = "rec_len is too small for name_len";
else if (unlikely(((char *) de - buf) + rlen > size))
- error_msg = "directory entry across range";
+ error_msg = "directory entry overrun";
else if (unlikely(le32_to_cpu(de->inode) >
le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count)))
error_msg = "inode out of bounds";
@@ -85,18 +85,16 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
if (filp)
ext4_error_file(filp, function, line, bh->b_blocknr,
- "bad entry in directory: %s - offset=%u(%u), "
- "inode=%u, rec_len=%d, name_len=%d",
- error_msg, (unsigned) (offset % size),
- offset, le32_to_cpu(de->inode),
- rlen, de->name_len);
+ "bad entry in directory: %s - offset=%u, "
+ "inode=%u, rec_len=%d, name_len=%d, size=%d",
+ error_msg, offset, le32_to_cpu(de->inode),
+ rlen, de->name_len, size);
else
ext4_error_inode(dir, function, line, bh->b_blocknr,
- "bad entry in directory: %s - offset=%u(%u), "
- "inode=%u, rec_len=%d, name_len=%d",
- error_msg, (unsigned) (offset % size),
- offset, le32_to_cpu(de->inode),
- rlen, de->name_len);
+ "bad entry in directory: %s - offset=%u, "
+ "inode=%u, rec_len=%d, name_len=%d, size=%d",
+ error_msg, offset, le32_to_cpu(de->inode),
+ rlen, de->name_len, size);
return 1;
}
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0f0edd1..caff935 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -43,6 +43,17 @@
#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION)
#include <linux/fscrypt.h>
+#include <linux/compiler.h>
+
+/* Until this gets included into linux/compiler-gcc.h */
+#ifndef __nonstring
+#if defined(GCC_VERSION) && (GCC_VERSION >= 80000)
+#define __nonstring __attribute__((nonstring))
+#else
+#define __nonstring
+#endif
+#endif
+
/*
* The fourth extended filesystem constants/structures
*/
@@ -675,6 +686,9 @@ enum {
/* Max physical block we can address w/o extents */
#define EXT4_MAX_BLOCK_FILE_PHYS 0xFFFFFFFF
+/* Max logical block we can support */
+#define EXT4_MAX_LOGICAL_BLOCK 0xFFFFFFFF
+
/*
* Structure of an inode on the disk
*/
@@ -1226,7 +1240,7 @@ struct ext4_super_block {
__le32 s_feature_ro_compat; /* readonly-compatible feature set */
/*68*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */
/*78*/ char s_volume_name[16]; /* volume name */
-/*88*/ char s_last_mounted[64]; /* directory where last mounted */
+/*88*/ char s_last_mounted[64] __nonstring; /* directory where last mounted */
/*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */
/*
* Performance hints. Directory preallocation should only
@@ -1277,13 +1291,13 @@ struct ext4_super_block {
__le32 s_first_error_time; /* first time an error happened */
__le32 s_first_error_ino; /* inode involved in first error */
__le64 s_first_error_block; /* block involved of first error */
- __u8 s_first_error_func[32]; /* function where the error happened */
+ __u8 s_first_error_func[32] __nonstring; /* function where the error happened */
__le32 s_first_error_line; /* line number where error happened */
__le32 s_last_error_time; /* most recent time of an error */
__le32 s_last_error_ino; /* inode involved in last error */
__le32 s_last_error_line; /* line number where error happened */
__le64 s_last_error_block; /* block involved of last error */
- __u8 s_last_error_func[32]; /* function where the error happened */
+ __u8 s_last_error_func[32] __nonstring; /* function where the error happened */
#define EXT4_S_ERR_END offsetof(struct ext4_super_block, s_mount_opts)
__u8 s_mount_opts[64];
__le32 s_usr_quota_inum; /* inode for tracking user quota */
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 3543fe8..7b47360 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1753,6 +1753,7 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
{
int err, inline_size;
struct ext4_iloc iloc;
+ size_t inline_len;
void *inline_pos;
unsigned int offset;
struct ext4_dir_entry_2 *de;
@@ -1780,8 +1781,9 @@ bool empty_inline_dir(struct inode *dir, int *has_inline_data)
goto out;
}
+ inline_len = ext4_get_inline_size(dir);
offset = EXT4_INLINE_DOTDOT_SIZE;
- while (offset < dir->i_size) {
+ while (offset < inline_len) {
de = ext4_get_inline_entry(dir, &iloc, offset,
&inline_pos, &inline_size);
if (ext4_check_dir_entry(dir, NULL, de,
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d0dd585..d767e99 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3413,12 +3413,16 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
{
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
unsigned int blkbits = inode->i_blkbits;
- unsigned long first_block = offset >> blkbits;
- unsigned long last_block = (offset + length - 1) >> blkbits;
+ unsigned long first_block, last_block;
struct ext4_map_blocks map;
bool delalloc = false;
int ret;
+ if ((offset >> blkbits) > EXT4_MAX_LOGICAL_BLOCK)
+ return -EINVAL;
+ first_block = offset >> blkbits;
+ last_block = min_t(loff_t, (offset + length - 1) >> blkbits,
+ EXT4_MAX_LOGICAL_BLOCK);
if (flags & IOMAP_REPORT) {
if (ext4_has_inline_data(inode)) {
@@ -3948,6 +3952,7 @@ static const struct address_space_operations ext4_dax_aops = {
.writepages = ext4_dax_writepages,
.direct_IO = noop_direct_IO,
.set_page_dirty = noop_set_page_dirty,
+ .bmap = ext4_bmap,
.invalidatepage = noop_invalidatepage,
};
@@ -4192,9 +4197,8 @@ int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
return 0;
}
-static void ext4_wait_dax_page(struct ext4_inode_info *ei, bool *did_unlock)
+static void ext4_wait_dax_page(struct ext4_inode_info *ei)
{
- *did_unlock = true;
up_write(&ei->i_mmap_sem);
schedule();
down_write(&ei->i_mmap_sem);
@@ -4204,14 +4208,12 @@ int ext4_break_layouts(struct inode *inode)
{
struct ext4_inode_info *ei = EXT4_I(inode);
struct page *page;
- bool retry;
int error;
if (WARN_ON_ONCE(!rwsem_is_locked(&ei->i_mmap_sem)))
return -EINVAL;
do {
- retry = false;
page = dax_layout_busy_page(inode->i_mapping);
if (!page)
return 0;
@@ -4219,8 +4221,8 @@ int ext4_break_layouts(struct inode *inode)
error = ___wait_var_event(&page->_refcount,
atomic_read(&page->_refcount) == 1,
TASK_INTERRUPTIBLE, 0, 0,
- ext4_wait_dax_page(ei, &retry));
- } while (error == 0 && retry);
+ ext4_wait_dax_page(ei));
+ } while (error == 0);
return error;
}
@@ -4895,6 +4897,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
* not initialized on a new filesystem. */
}
ei->i_flags = le32_to_cpu(raw_inode->i_flags);
+ ext4_set_inode_flags(inode);
inode->i_blocks = ext4_inode_blocks(raw_inode, ei);
ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl_lo);
if (ext4_has_feature_64bit(sb))
@@ -5041,7 +5044,6 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
goto bad_inode;
}
brelse(iloc.bh);
- ext4_set_inode_flags(inode);
unlock_new_inode(inode);
return inode;
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 39b07c2..2305b43 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -49,7 +49,6 @@ static int write_mmp_block(struct super_block *sb, struct buffer_head *bh)
*/
sb_start_write(sb);
ext4_mmp_csum_set(sb, mmp);
- mark_buffer_dirty(bh);
lock_buffer(bh);
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 116ff68..377d516 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3478,6 +3478,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
int credits;
u8 old_file_type;
+ if (new.inode && new.inode->i_nlink == 0) {
+ EXT4_ERROR_INODE(new.inode,
+ "target of rename is already freed");
+ return -EFSCORRUPTED;
+ }
+
if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT)) &&
(!projid_eq(EXT4_I(new_dir)->i_projid,
EXT4_I(old_dentry->d_inode)->i_projid)))
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index e5fb384..ebbc663 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -19,6 +19,7 @@
int ext4_resize_begin(struct super_block *sb)
{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
int ret = 0;
if (!capable(CAP_SYS_RESOURCE))
@@ -29,7 +30,7 @@ int ext4_resize_begin(struct super_block *sb)
* because the user tools have no way of handling this. Probably a
* bad time to do it anyways.
*/
- if (EXT4_SB(sb)->s_sbh->b_blocknr !=
+ if (EXT4_B2C(sbi, sbi->s_sbh->b_blocknr) !=
le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
ext4_warning(sb, "won't resize using backup superblock at %llu",
(unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
@@ -1986,6 +1987,26 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
}
}
+ /*
+ * Make sure the last group has enough space so that it's
+ * guaranteed to have enough space for all metadata blocks
+ * that it might need to hold. (We might not need to store
+ * the inode table blocks in the last block group, but there
+ * will be cases where this might be needed.)
+ */
+ if ((ext4_group_first_block_no(sb, n_group) +
+ ext4_group_overhead_blocks(sb, n_group) + 2 +
+ sbi->s_itb_per_group + sbi->s_cluster_ratio) >= n_blocks_count) {
+ n_blocks_count = ext4_group_first_block_no(sb, n_group);
+ n_group--;
+ n_blocks_count_retry = 0;
+ if (resize_inode) {
+ iput(resize_inode);
+ resize_inode = NULL;
+ }
+ goto retry;
+ }
+
/* extend the last group */
if (n_group == o_group)
add = n_blocks_count - o_blocks_count;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5863fd2..1145109 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2145,6 +2145,8 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb,
SEQ_OPTS_PRINT("max_dir_size_kb=%u", sbi->s_max_dir_size_kb);
if (test_opt(sb, DATA_ERR_ABORT))
SEQ_OPTS_PUTS("data_err=abort");
+ if (DUMMY_ENCRYPTION_ENABLED(sbi))
+ SEQ_OPTS_PUTS("test_dummy_encryption");
ext4_show_quota_options(seq, sb);
return 0;
@@ -4378,11 +4380,13 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
block = ext4_count_free_clusters(sb);
ext4_free_blocks_count_set(sbi->s_es,
EXT4_C2B(sbi, block));
+ ext4_superblock_csum_set(sb);
err = percpu_counter_init(&sbi->s_freeclusters_counter, block,
GFP_KERNEL);
if (!err) {
unsigned long freei = ext4_count_free_inodes(sb);
sbi->s_es->s_free_inodes_count = cpu_to_le32(freei);
+ ext4_superblock_csum_set(sb);
err = percpu_counter_init(&sbi->s_freeinodes_counter, freei,
GFP_KERNEL);
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 34830f6..8220a16 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1637,6 +1637,14 @@ static void nfs_state_set_delegation(struct nfs4_state *state,
write_sequnlock(&state->seqlock);
}
+static void nfs_state_clear_delegation(struct nfs4_state *state)
+{
+ write_seqlock(&state->seqlock);
+ nfs4_stateid_copy(&state->stateid, &state->open_stateid);
+ clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ write_sequnlock(&state->seqlock);
+}
+
static int update_open_stateid(struct nfs4_state *state,
const nfs4_stateid *open_stateid,
const nfs4_stateid *delegation,
@@ -2145,10 +2153,7 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx,
if (IS_ERR(opendata))
return PTR_ERR(opendata);
nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
- write_seqlock(&state->seqlock);
- nfs4_stateid_copy(&state->stateid, &state->open_stateid);
- write_sequnlock(&state->seqlock);
- clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ nfs_state_clear_delegation(state);
switch (type & (FMODE_READ|FMODE_WRITE)) {
case FMODE_READ|FMODE_WRITE:
case FMODE_WRITE:
@@ -2601,10 +2606,7 @@ static void nfs_finish_clear_delegation_stateid(struct nfs4_state *state,
const nfs4_stateid *stateid)
{
nfs_remove_bad_delegation(state->inode, stateid);
- write_seqlock(&state->seqlock);
- nfs4_stateid_copy(&state->stateid, &state->open_stateid);
- write_sequnlock(&state->seqlock);
- clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ nfs_state_clear_delegation(state);
}
static void nfs40_clear_delegation_stateid(struct nfs4_state *state)
@@ -2672,15 +2674,20 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
if (delegation == NULL) {
rcu_read_unlock();
+ nfs_state_clear_delegation(state);
return;
}
nfs4_stateid_copy(&stateid, &delegation->stateid);
- if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) ||
- !test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED,
- &delegation->flags)) {
+ if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) {
rcu_read_unlock();
- nfs_finish_clear_delegation_stateid(state, &stateid);
+ nfs_state_clear_delegation(state);
+ return;
+ }
+
+ if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED,
+ &delegation->flags)) {
+ rcu_read_unlock();
return;
}
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 3df0eb5..40a08cd4 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1390,6 +1390,8 @@ int nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4_
if (!nfs4_state_mark_reclaim_nograce(clp, state))
return -EBADF;
+ nfs_inode_find_delegation_state_and_recover(state->inode,
+ &state->stateid);
dprintk("%s: scheduling stateid recovery for server %s\n", __func__,
clp->cl_hostname);
nfs4_schedule_state_manager(clp);
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index a275fba..b1483b3 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1137,7 +1137,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_callback_event,
TP_fast_assign(
__entry->error = error;
__entry->fhandle = nfs_fhandle_hash(fhandle);
- if (inode != NULL) {
+ if (!IS_ERR_OR_NULL(inode)) {
__entry->fileid = NFS_FILEID(inode);
__entry->dev = inode->i_sb->s_dev;
} else {
@@ -1194,7 +1194,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_stateid_callback_event,
TP_fast_assign(
__entry->error = error;
__entry->fhandle = nfs_fhandle_hash(fhandle);
- if (inode != NULL) {
+ if (!IS_ERR_OR_NULL(inode)) {
__entry->fileid = NFS_FILEID(inode);
__entry->dev = inode->i_sb->s_dev;
} else {
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index e8f232d..7d9a51e 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1740,16 +1740,16 @@ static bool pnfs_within_mdsthreshold(struct nfs_open_context *ctx,
return ret;
}
-static bool pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo)
+static int pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo)
{
/*
* send layoutcommit as it can hold up layoutreturn due to lseg
* reference
*/
pnfs_layoutcommit_inode(lo->plh_inode, false);
- return !wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN,
+ return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN,
nfs_wait_bit_killable,
- TASK_UNINTERRUPTIBLE);
+ TASK_KILLABLE);
}
static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo)
@@ -1830,7 +1830,9 @@ pnfs_update_layout(struct inode *ino,
}
lookup_again:
- nfs4_client_recover_expired_lease(clp);
+ lseg = ERR_PTR(nfs4_client_recover_expired_lease(clp));
+ if (IS_ERR(lseg))
+ goto out;
first = false;
spin_lock(&ino->i_lock);
lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);
@@ -1863,9 +1865,9 @@ pnfs_update_layout(struct inode *ino,
if (list_empty(&lo->plh_segs) &&
atomic_read(&lo->plh_outstanding) != 0) {
spin_unlock(&ino->i_lock);
- if (wait_var_event_killable(&lo->plh_outstanding,
- atomic_read(&lo->plh_outstanding) == 0
- || !list_empty(&lo->plh_segs)))
+ lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding,
+ atomic_read(&lo->plh_outstanding)));
+ if (IS_ERR(lseg) || !list_empty(&lo->plh_segs))
goto out_put_layout_hdr;
pnfs_put_layout_hdr(lo);
goto lookup_again;
@@ -1898,8 +1900,11 @@ pnfs_update_layout(struct inode *ino,
if (test_and_set_bit(NFS_LAYOUT_FIRST_LAYOUTGET,
&lo->plh_flags)) {
spin_unlock(&ino->i_lock);
- wait_on_bit(&lo->plh_flags, NFS_LAYOUT_FIRST_LAYOUTGET,
- TASK_UNINTERRUPTIBLE);
+ lseg = ERR_PTR(wait_on_bit(&lo->plh_flags,
+ NFS_LAYOUT_FIRST_LAYOUTGET,
+ TASK_KILLABLE));
+ if (IS_ERR(lseg))
+ goto out_put_layout_hdr;
pnfs_put_layout_hdr(lo);
dprintk("%s retrying\n", __func__);
goto lookup_again;
@@ -1925,7 +1930,8 @@ pnfs_update_layout(struct inode *ino,
if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) {
spin_unlock(&ino->i_lock);
dprintk("%s wait for layoutreturn\n", __func__);
- if (pnfs_prepare_to_retry_layoutget(lo)) {
+ lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo));
+ if (!IS_ERR(lseg)) {
if (first)
pnfs_clear_first_layoutget(lo);
pnfs_put_layout_hdr(lo);
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 32e9282..aeaefd2 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -131,9 +131,6 @@ static int ovl_open(struct inode *inode, struct file *file)
if (IS_ERR(realfile))
return PTR_ERR(realfile);
- /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */
- file->f_mapping = realfile->f_mapping;
-
file->private_data = realfile;
return 0;
@@ -334,6 +331,25 @@ static long ovl_fallocate(struct file *file, int mode, loff_t offset, loff_t len
return ret;
}
+static int ovl_fadvise(struct file *file, loff_t offset, loff_t len, int advice)
+{
+ struct fd real;
+ const struct cred *old_cred;
+ int ret;
+
+ ret = ovl_real_fdget(file, &real);
+ if (ret)
+ return ret;
+
+ old_cred = ovl_override_creds(file_inode(file)->i_sb);
+ ret = vfs_fadvise(real.file, offset, len, advice);
+ revert_creds(old_cred);
+
+ fdput(real);
+
+ return ret;
+}
+
static long ovl_real_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
@@ -502,6 +518,7 @@ const struct file_operations ovl_file_operations = {
.fsync = ovl_fsync,
.mmap = ovl_mmap,
.fallocate = ovl_fallocate,
+ .fadvise = ovl_fadvise,
.unlocked_ioctl = ovl_ioctl,
.compat_ioctl = ovl_compat_ioctl,
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index e0bb217..b6ac545 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -467,6 +467,10 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return -EOPNOTSUPP;
old_cred = ovl_override_creds(inode->i_sb);
+
+ if (fieinfo->fi_flags & FIEMAP_FLAG_SYNC)
+ filemap_write_and_wait(realinode->i_mapping);
+
err = realinode->i_op->fiemap(realinode, fieinfo, start, len);
revert_creds(old_cred);
@@ -500,6 +504,11 @@ static const struct inode_operations ovl_special_inode_operations = {
.update_time = ovl_update_time,
};
+const struct address_space_operations ovl_aops = {
+ /* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */
+ .direct_IO = noop_direct_IO,
+};
+
/*
* It is possible to stack overlayfs instance on top of another
* overlayfs instance as lower layer. We need to annonate the
@@ -571,6 +580,7 @@ static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev,
case S_IFREG:
inode->i_op = &ovl_file_inode_operations;
inode->i_fop = &ovl_file_operations;
+ inode->i_mapping->a_ops = &ovl_aops;
break;
case S_IFDIR:
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 2e0fc93..30adc9d 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -982,16 +982,6 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
if (err)
goto out;
- err = -EBUSY;
- if (ovl_inuse_trylock(upperpath->dentry)) {
- ofs->upperdir_locked = true;
- } else if (ofs->config.index) {
- pr_err("overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.\n");
- goto out;
- } else {
- pr_warn("overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
- }
-
upper_mnt = clone_private_mount(upperpath);
err = PTR_ERR(upper_mnt);
if (IS_ERR(upper_mnt)) {
@@ -1002,6 +992,17 @@ static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
/* Don't inherit atime flags */
upper_mnt->mnt_flags &= ~(MNT_NOATIME | MNT_NODIRATIME | MNT_RELATIME);
ofs->upper_mnt = upper_mnt;
+
+ err = -EBUSY;
+ if (ovl_inuse_trylock(ofs->upper_mnt->mnt_root)) {
+ ofs->upperdir_locked = true;
+ } else if (ofs->config.index) {
+ pr_err("overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.\n");
+ goto out;
+ } else {
+ pr_warn("overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
+ }
+
err = 0;
out:
return err;
@@ -1101,8 +1102,10 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath)
goto out;
}
+ ofs->workbasedir = dget(workpath.dentry);
+
err = -EBUSY;
- if (ovl_inuse_trylock(workpath.dentry)) {
+ if (ovl_inuse_trylock(ofs->workbasedir)) {
ofs->workdir_locked = true;
} else if (ofs->config.index) {
pr_err("overlayfs: workdir is in-use by another mount, mount with '-o index=off' to override exclusive workdir protection.\n");
@@ -1111,7 +1114,6 @@ static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath)
pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
}
- ofs->workbasedir = dget(workpath.dentry);
err = ovl_make_workdir(ofs, &workpath);
if (err)
goto out;
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 951a14e..0792595 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -429,7 +429,12 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size,
vaddr = vmap(pages, page_count, VM_MAP, prot);
kfree(pages);
- return vaddr;
+ /*
+ * Since vmap() uses page granularity, we must add the offset
+ * into the page here, to get the byte granularity address
+ * into the mapping to represent the actual "start" location.
+ */
+ return vaddr + offset_in_page(start);
}
static void *persistent_ram_iomap(phys_addr_t start, size_t size,
@@ -448,6 +453,11 @@ static void *persistent_ram_iomap(phys_addr_t start, size_t size,
else
va = ioremap_wc(start, size);
+ /*
+ * Since request_mem_region() and ioremap() are byte-granularity
+ * there is no need handle anything special like we do when the
+ * vmap() case in persistent_ram_vmap() above.
+ */
return va;
}
@@ -468,7 +478,7 @@ static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size,
return -ENOMEM;
}
- prz->buffer = prz->vaddr + offset_in_page(start);
+ prz->buffer = prz->vaddr;
prz->buffer_size = size - sizeof(struct persistent_ram_buffer);
return 0;
@@ -515,7 +525,8 @@ void persistent_ram_free(struct persistent_ram_zone *prz)
if (prz->vaddr) {
if (pfn_valid(prz->paddr >> PAGE_SHIFT)) {
- vunmap(prz->vaddr);
+ /* We must vunmap() at page-granularity. */
+ vunmap(prz->vaddr - offset_in_page(prz->paddr));
} else {
iounmap(prz->vaddr);
release_mem_region(prz->paddr, prz->size);
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 66d1d45..d356f80 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -1026,7 +1026,8 @@ static inline void __iomem *ioremap_wt(phys_addr_t offset, size_t size)
#define ioport_map ioport_map
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
- return PCI_IOBASE + (port & MMIO_UPPER_LIMIT);
+ port &= IO_SPACE_LIMIT;
+ return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
}
#endif
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index d6869e0..6980014 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -54,7 +54,7 @@ struct blk_stat_callback;
* Maximum number of blkcg policies allowed to be registered concurrently.
* Defined here to simplify include dependency.
*/
-#define BLKCG_MAX_POLS 3
+#define BLKCG_MAX_POLS 5
typedef void (rq_end_io_fn)(struct request *, blk_status_t);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3332270..6c0b4a1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1763,6 +1763,7 @@ struct file_operations {
u64);
int (*dedupe_file_range)(struct file *, loff_t, struct file *, loff_t,
u64);
+ int (*fadvise)(struct file *, loff_t, loff_t, int);
} __randomize_layout;
struct inode_operations {
@@ -3459,4 +3460,8 @@ static inline bool dir_relax_shared(struct inode *inode)
extern bool path_noexec(const struct path *path);
extern void inode_nohighmem(struct inode *inode);
+/* mm/fadvise.c */
+extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,
+ int advice);
+
#endif /* _LINUX_FS_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index cd2bc93..5ed8f62 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -341,7 +341,7 @@ struct mm_struct {
struct {
struct vm_area_struct *mmap; /* list of VMAs */
struct rb_root mm_rb;
- u32 vmacache_seqnum; /* per-thread vmacache */
+ u64 vmacache_seqnum; /* per-thread vmacache */
#ifdef CONFIG_MMU
unsigned long (*get_unmapped_area) (struct file *filp,
unsigned long addr, unsigned long len,
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
index 5fe8768..d7016dc 100644
--- a/include/linux/mm_types_task.h
+++ b/include/linux/mm_types_task.h
@@ -32,7 +32,7 @@
#define VMACACHE_MASK (VMACACHE_SIZE - 1)
struct vmacache {
- u32 seqnum;
+ u64 seqnum;
struct vm_area_struct *vmas[VMACACHE_SIZE];
};
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 1298a7d..01797cb 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -754,6 +754,7 @@ struct tb_service_id {
* struct typec_device_id - USB Type-C alternate mode identifiers
* @svid: Standard or Vendor ID
* @mode: Mode index
+ * @driver_data: Driver specific data
*/
struct typec_device_id {
__u16 svid;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index e72ca8d..6925828 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1235,6 +1235,9 @@ void pci_bus_remove_resources(struct pci_bus *bus);
int devm_request_pci_bus_resources(struct device *dev,
struct list_head *resources);
+/* Temporary until new and working PCI SBR API in place */
+int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
+
#define pci_bus_for_each_resource(bus, res, i) \
for (i = 0; \
(res = pci_bus_resource_n(bus, i)) || i < PCI_BRIDGE_RESOURCE_NUM; \
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 5c7f010..47a3441 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -105,7 +105,6 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
#ifdef CONFIG_DEBUG_VM_VMACACHE
VMACACHE_FIND_CALLS,
VMACACHE_FIND_HITS,
- VMACACHE_FULL_FLUSHES,
#endif
#ifdef CONFIG_SWAP
SWAP_RA,
diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h
index 3e9a963..6fce268 100644
--- a/include/linux/vmacache.h
+++ b/include/linux/vmacache.h
@@ -10,7 +10,6 @@ static inline void vmacache_flush(struct task_struct *tsk)
memset(tsk->vmacache.vmas, 0, sizeof(tsk->vmacache.vmas));
}
-extern void vmacache_flush_all(struct mm_struct *mm);
extern void vmacache_update(unsigned long addr, struct vm_area_struct *newvma);
extern struct vm_area_struct *vmacache_find(struct mm_struct *mm,
unsigned long addr);
@@ -24,10 +23,6 @@ extern struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
static inline void vmacache_invalidate(struct mm_struct *mm)
{
mm->vmacache_seqnum++;
-
- /* deal with overflows */
- if (unlikely(mm->vmacache_seqnum == 0))
- vmacache_flush_all(mm);
}
#endif /* __LINUX_VMACACHE_H */
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index eeb787b..f35eb72 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -144,7 +144,7 @@ enum perf_event_sample_format {
PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */
- __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63,
+ __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */
};
/*
diff --git a/include/xen/mem-reservation.h b/include/xen/mem-reservation.h
index 80b52b4..a2ab516 100644
--- a/include/xen/mem-reservation.h
+++ b/include/xen/mem-reservation.h
@@ -17,11 +17,12 @@
#include <xen/page.h>
+extern bool xen_scrub_pages;
+
static inline void xenmem_reservation_scrub_page(struct page *page)
{
-#ifdef CONFIG_XEN_SCRUB_PAGES
- clear_highpage(page);
-#endif
+ if (xen_scrub_pages)
+ clear_highpage(page);
}
#ifdef CONFIG_XEN_HAVE_PVMMU
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2a62b96..c80549b 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2867,16 +2867,11 @@ static int perf_event_modify_breakpoint(struct perf_event *bp,
_perf_event_disable(bp);
err = modify_user_hw_breakpoint_check(bp, attr, true);
- if (err) {
- if (!bp->attr.disabled)
- _perf_event_enable(bp);
- return err;
- }
-
- if (!attr->disabled)
+ if (!bp->attr.disabled)
_perf_event_enable(bp);
- return 0;
+
+ return err;
}
static int perf_event_modify_attr(struct perf_event *event,
@@ -5948,6 +5943,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
unsigned long sp;
unsigned int rem;
u64 dyn_size;
+ mm_segment_t fs;
/*
* We dump:
@@ -5965,7 +5961,10 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
/* Data. */
sp = perf_user_stack_pointer(regs);
+ fs = get_fs();
+ set_fs(USER_DS);
rem = __output_copy_user(handle, (void *) sp, dump_size);
+ set_fs(fs);
dyn_size = dump_size - rem;
perf_output_skip(handle, rem);
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index b3814fc..d6b5618 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -509,6 +509,8 @@ modify_user_hw_breakpoint_check(struct perf_event *bp, struct perf_event_attr *a
*/
int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr)
{
+ int err;
+
/*
* modify_user_hw_breakpoint can be invoked with IRQs disabled and hence it
* will not be possible to raise IPIs that invoke __perf_event_disable.
@@ -520,15 +522,12 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att
else
perf_event_disable(bp);
- if (!attr->disabled) {
- int err = modify_user_hw_breakpoint_check(bp, attr, false);
+ err = modify_user_hw_breakpoint_check(bp, attr, false);
- if (err)
- return err;
+ if (!bp->attr.disabled)
perf_event_enable(bp);
- bp->attr.disabled = 0;
- }
- return 0;
+
+ return err;
}
EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 01ebdf1f..2e62503 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -678,7 +678,7 @@ jump_label_module_notify(struct notifier_block *self, unsigned long val,
case MODULE_STATE_COMING:
ret = jump_label_add_module(mod);
if (ret) {
- WARN(1, "Failed to allocatote memory: jump_label may not work properly.\n");
+ WARN(1, "Failed to allocate memory: jump_label may not work properly.\n");
jump_label_del_module(mod);
}
break;
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e406c5f..dd13f86 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -55,7 +55,6 @@
#include "lockdep_internals.h"
-#include <trace/events/preemptirq.h>
#define CREATE_TRACE_POINTS
#include <trace/events/lock.h>
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 1a81a12..3f8a351 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -389,7 +389,7 @@ static bool __ww_mutex_wound(struct mutex *lock,
/*
* wake_up_process() paired with set_current_state()
* inserts sufficient barriers to make sure @owner either sees
- * it's wounded in __ww_mutex_lock_check_stamp() or has a
+ * it's wounded in __ww_mutex_check_kill() or has a
* wakeup pending to re-read the wounded state.
*/
if (owner != current)
@@ -946,7 +946,6 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
}
debug_mutex_lock_common(lock, &waiter);
- debug_mutex_add_waiter(lock, &waiter, current);
lock_contended(&lock->dep_map, ip);
diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
index 5b915b3..0be047d 100644
--- a/kernel/locking/test-ww_mutex.c
+++ b/kernel/locking/test-ww_mutex.c
@@ -324,7 +324,7 @@ static int __test_cycle(unsigned int nthreads)
if (!cycle->result)
continue;
- pr_err("cylic deadlock not resolved, ret[%d/%d] = %d\n",
+ pr_err("cyclic deadlock not resolved, ret[%d/%d] = %d\n",
n, nthreads, cycle->result);
ret = -EINVAL;
break;
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index fd6f8ed..9bf5404 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -351,7 +351,6 @@ static int console_msg_format = MSG_FORMAT_DEFAULT;
*/
enum log_flags {
- LOG_NOCONS = 1, /* suppress print, do not print to console */
LOG_NEWLINE = 2, /* text ended with a newline */
LOG_PREFIX = 4, /* text started with a prefix */
LOG_CONT = 8, /* text is a fragment of a continuation line */
@@ -1881,9 +1880,6 @@ int vprintk_store(int facility, int level,
if (dict)
lflags |= LOG_PREFIX|LOG_NEWLINE;
- if (suppress_message_printing(level))
- lflags |= LOG_NOCONS;
-
return log_output(facility, level, lflags,
dict, dictlen, text, text_len);
}
@@ -2032,6 +2028,7 @@ static void call_console_drivers(const char *ext_text, size_t ext_len,
const char *text, size_t len) {}
static size_t msg_print_text(const struct printk_log *msg,
bool syslog, char *buf, size_t size) { return 0; }
+static bool suppress_message_printing(int level) { return false; }
#endif /* CONFIG_PRINTK */
@@ -2368,10 +2365,11 @@ void console_unlock(void)
break;
msg = log_from_idx(console_idx);
- if (msg->flags & LOG_NOCONS) {
+ if (suppress_message_printing(msg->level)) {
/*
- * Skip record if !ignore_loglevel, and
- * record has level above the console loglevel.
+ * Skip record we have buffered and already printed
+ * directly to the console when we received it, and
+ * record that has level above the console loglevel.
*/
console_idx = log_next(console_idx);
console_seq++;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 60caf1f..6383aa6 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -89,12 +89,12 @@ struct static_key sched_feat_keys[__SCHED_FEAT_NR] = {
static void sched_feat_disable(int i)
{
- static_key_disable(&sched_feat_keys[i]);
+ static_key_disable_cpuslocked(&sched_feat_keys[i]);
}
static void sched_feat_enable(int i)
{
- static_key_enable(&sched_feat_keys[i]);
+ static_key_enable_cpuslocked(&sched_feat_keys[i]);
}
#else
static void sched_feat_disable(int i) { };
@@ -146,9 +146,11 @@ sched_feat_write(struct file *filp, const char __user *ubuf,
/* Ensure the static_key remains in a consistent state */
inode = file_inode(filp);
+ cpus_read_lock();
inode_lock(inode);
ret = sched_feat_set(cmp);
inode_unlock(inode);
+ cpus_read_unlock();
if (ret < 0)
return ret;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b39fb59..f808ddf 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3362,6 +3362,7 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
* attach_entity_load_avg - attach this entity to its cfs_rq load avg
* @cfs_rq: cfs_rq to attach to
* @se: sched_entity to attach
+ * @flags: migration hints
*
* Must call update_cfs_rq_load_avg() before this, since we rely on
* cfs_rq->avg.last_update_time being current.
@@ -7263,6 +7264,7 @@ static void update_blocked_averages(int cpu)
{
struct rq *rq = cpu_rq(cpu);
struct cfs_rq *cfs_rq, *pos;
+ const struct sched_class *curr_class;
struct rq_flags rf;
bool done = true;
@@ -7299,8 +7301,10 @@ static void update_blocked_averages(int cpu)
if (cfs_rq_has_blocked(cfs_rq))
done = false;
}
- update_rt_rq_load_avg(rq_clock_task(rq), rq, 0);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, 0);
+
+ curr_class = rq->curr->sched_class;
+ update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class);
+ update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
/* Don't need periodic decay once load/util_avg are null */
if (others_have_blocked(rq))
@@ -7365,13 +7369,16 @@ static inline void update_blocked_averages(int cpu)
{
struct rq *rq = cpu_rq(cpu);
struct cfs_rq *cfs_rq = &rq->cfs;
+ const struct sched_class *curr_class;
struct rq_flags rf;
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
- update_rt_rq_load_avg(rq_clock_task(rq), rq, 0);
- update_dl_rq_load_avg(rq_clock_task(rq), rq, 0);
+
+ curr_class = rq->curr->sched_class;
+ update_rt_rq_load_avg(rq_clock_task(rq), rq, curr_class == &rt_sched_class);
+ update_dl_rq_load_avg(rq_clock_task(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
#ifdef CONFIG_NO_HZ_COMMON
rq->last_blocked_load_update_tick = jiffies;
@@ -7482,10 +7489,10 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
return load_idx;
}
-static unsigned long scale_rt_capacity(int cpu)
+static unsigned long scale_rt_capacity(struct sched_domain *sd, int cpu)
{
struct rq *rq = cpu_rq(cpu);
- unsigned long max = arch_scale_cpu_capacity(NULL, cpu);
+ unsigned long max = arch_scale_cpu_capacity(sd, cpu);
unsigned long used, free;
unsigned long irq;
@@ -7507,7 +7514,7 @@ static unsigned long scale_rt_capacity(int cpu)
static void update_cpu_capacity(struct sched_domain *sd, int cpu)
{
- unsigned long capacity = scale_rt_capacity(cpu);
+ unsigned long capacity = scale_rt_capacity(sd, cpu);
struct sched_group *sdg = sd->groups;
cpu_rq(cpu)->cpu_capacity_orig = arch_scale_cpu_capacity(sd, cpu);
@@ -8269,7 +8276,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
force_balance:
/* Looks like there is an imbalance. Compute it */
calculate_imbalance(env, &sds);
- return sds.busiest;
+ return env->imbalance ? sds.busiest : NULL;
out_balanced:
env->imbalance = 0;
@@ -9638,7 +9645,8 @@ static inline bool vruntime_normalized(struct task_struct *p)
* - A task which has been woken up by try_to_wake_up() and
* waiting for actually being woken up by sched_ttwu_pending().
*/
- if (!se->sum_exec_runtime || p->state == TASK_WAKING)
+ if (!se->sum_exec_runtime ||
+ (p->state == TASK_WAKING && p->sched_remote_wakeup))
return true;
return false;
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 56a0fed..505a41c 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1295,7 +1295,7 @@ static void init_numa_topology_type(void)
n = sched_max_numa_distance;
- if (sched_domains_numa_levels <= 1) {
+ if (sched_domains_numa_levels <= 2) {
sched_numa_topology_type = NUMA_DIRECT;
return;
}
@@ -1380,9 +1380,6 @@ void sched_init_numa(void)
break;
}
- if (!level)
- return;
-
/*
* 'level' contains the number of unique distances
*
diff --git a/mm/Makefile b/mm/Makefile
index 8716bda..26ef77a 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -32,7 +32,7 @@
mmu-$(CONFIG_MMU) += process_vm_access.o
endif
-obj-y := filemap.o mempool.o oom_kill.o \
+obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
maccess.o page_alloc.o page-writeback.o \
readahead.o swap.o truncate.o vmscan.o shmem.o \
util.o mmzone.o vmstat.o backing-dev.o \
@@ -49,7 +49,6 @@
obj-y += bootmem.o
endif
-obj-$(CONFIG_ADVISE_SYSCALLS) += fadvise.o
ifdef CONFIG_MMU
obj-$(CONFIG_ADVISE_SYSCALLS) += madvise.o
endif
diff --git a/mm/debug.c b/mm/debug.c
index 38c9265..bd10aad 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -114,7 +114,7 @@ EXPORT_SYMBOL(dump_vma);
void dump_mm(const struct mm_struct *mm)
{
- pr_emerg("mm %px mmap %px seqnum %d task_size %lu\n"
+ pr_emerg("mm %px mmap %px seqnum %llu task_size %lu\n"
#ifdef CONFIG_MMU
"get_unmapped_area %px\n"
#endif
@@ -142,7 +142,7 @@ void dump_mm(const struct mm_struct *mm)
"tlb_flush_pending %d\n"
"def_flags: %#lx(%pGv)\n",
- mm, mm->mmap, mm->vmacache_seqnum, mm->task_size,
+ mm, mm->mmap, (long long) mm->vmacache_seqnum, mm->task_size,
#ifdef CONFIG_MMU
mm->get_unmapped_area,
#endif
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 2d8376e..467bcd0 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -27,9 +27,9 @@
* deactivate the pages and clear PG_Referenced.
*/
-int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
+static int generic_fadvise(struct file *file, loff_t offset, loff_t len,
+ int advice)
{
- struct fd f = fdget(fd);
struct inode *inode;
struct address_space *mapping;
struct backing_dev_info *bdi;
@@ -37,22 +37,14 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
pgoff_t start_index;
pgoff_t end_index;
unsigned long nrpages;
- int ret = 0;
- if (!f.file)
- return -EBADF;
+ inode = file_inode(file);
+ if (S_ISFIFO(inode->i_mode))
+ return -ESPIPE;
- inode = file_inode(f.file);
- if (S_ISFIFO(inode->i_mode)) {
- ret = -ESPIPE;
- goto out;
- }
-
- mapping = f.file->f_mapping;
- if (!mapping || len < 0) {
- ret = -EINVAL;
- goto out;
- }
+ mapping = file->f_mapping;
+ if (!mapping || len < 0)
+ return -EINVAL;
bdi = inode_to_bdi(mapping->host);
@@ -67,9 +59,9 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
/* no bad return value, but ignore advice */
break;
default:
- ret = -EINVAL;
+ return -EINVAL;
}
- goto out;
+ return 0;
}
/*
@@ -85,21 +77,21 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
switch (advice) {
case POSIX_FADV_NORMAL:
- f.file->f_ra.ra_pages = bdi->ra_pages;
- spin_lock(&f.file->f_lock);
- f.file->f_mode &= ~FMODE_RANDOM;
- spin_unlock(&f.file->f_lock);
+ file->f_ra.ra_pages = bdi->ra_pages;
+ spin_lock(&file->f_lock);
+ file->f_mode &= ~FMODE_RANDOM;
+ spin_unlock(&file->f_lock);
break;
case POSIX_FADV_RANDOM:
- spin_lock(&f.file->f_lock);
- f.file->f_mode |= FMODE_RANDOM;
- spin_unlock(&f.file->f_lock);
+ spin_lock(&file->f_lock);
+ file->f_mode |= FMODE_RANDOM;
+ spin_unlock(&file->f_lock);
break;
case POSIX_FADV_SEQUENTIAL:
- f.file->f_ra.ra_pages = bdi->ra_pages * 2;
- spin_lock(&f.file->f_lock);
- f.file->f_mode &= ~FMODE_RANDOM;
- spin_unlock(&f.file->f_lock);
+ file->f_ra.ra_pages = bdi->ra_pages * 2;
+ spin_lock(&file->f_lock);
+ file->f_mode &= ~FMODE_RANDOM;
+ spin_unlock(&file->f_lock);
break;
case POSIX_FADV_WILLNEED:
/* First and last PARTIAL page! */
@@ -115,8 +107,7 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
* Ignore return value because fadvise() shall return
* success even if filesystem can't retrieve a hint,
*/
- force_page_cache_readahead(mapping, f.file, start_index,
- nrpages);
+ force_page_cache_readahead(mapping, file, start_index, nrpages);
break;
case POSIX_FADV_NOREUSE:
break;
@@ -183,9 +174,32 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
}
break;
default:
- ret = -EINVAL;
+ return -EINVAL;
}
-out:
+ return 0;
+}
+
+int vfs_fadvise(struct file *file, loff_t offset, loff_t len, int advice)
+{
+ if (file->f_op->fadvise)
+ return file->f_op->fadvise(file, offset, len, advice);
+
+ return generic_fadvise(file, offset, len, advice);
+}
+EXPORT_SYMBOL(vfs_fadvise);
+
+#ifdef CONFIG_ADVISE_SYSCALLS
+
+int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
+{
+ struct fd f = fdget(fd);
+ int ret;
+
+ if (!f.file)
+ return -EBADF;
+
+ ret = vfs_fadvise(f.file, offset, len, advice);
+
fdput(f);
return ret;
}
@@ -203,3 +217,4 @@ SYSCALL_DEFINE4(fadvise64, int, fd, loff_t, offset, size_t, len, int, advice)
}
#endif
+#endif
diff --git a/mm/readahead.c b/mm/readahead.c
index a59ea70..4e63014 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -20,6 +20,7 @@
#include <linux/file.h>
#include <linux/mm_inline.h>
#include <linux/blk-cgroup.h>
+#include <linux/fadvise.h>
#include "internal.h"
@@ -575,24 +576,6 @@ page_cache_async_readahead(struct address_space *mapping,
}
EXPORT_SYMBOL_GPL(page_cache_async_readahead);
-static ssize_t
-do_readahead(struct address_space *mapping, struct file *filp,
- pgoff_t index, unsigned long nr)
-{
- if (!mapping || !mapping->a_ops)
- return -EINVAL;
-
- /*
- * Readahead doesn't make sense for DAX inodes, but we don't want it
- * to report a failure either. Instead, we just return success and
- * don't do any work.
- */
- if (dax_mapping(mapping))
- return 0;
-
- return force_page_cache_readahead(mapping, filp, index, nr);
-}
-
ssize_t ksys_readahead(int fd, loff_t offset, size_t count)
{
ssize_t ret;
@@ -600,16 +583,22 @@ ssize_t ksys_readahead(int fd, loff_t offset, size_t count)
ret = -EBADF;
f = fdget(fd);
- if (f.file) {
- if (f.file->f_mode & FMODE_READ) {
- struct address_space *mapping = f.file->f_mapping;
- pgoff_t start = offset >> PAGE_SHIFT;
- pgoff_t end = (offset + count - 1) >> PAGE_SHIFT;
- unsigned long len = end - start + 1;
- ret = do_readahead(mapping, f.file, start, len);
- }
- fdput(f);
- }
+ if (!f.file || !(f.file->f_mode & FMODE_READ))
+ goto out;
+
+ /*
+ * The readahead() syscall is intended to run only on files
+ * that can execute readahead. If readahead is not possible
+ * on this file, then we must return -EINVAL.
+ */
+ ret = -EINVAL;
+ if (!f.file->f_mapping || !f.file->f_mapping->a_ops ||
+ !S_ISREG(file_inode(f.file)->i_mode))
+ goto out;
+
+ ret = vfs_fadvise(f.file, offset, count, POSIX_FADV_WILLNEED);
+out:
+ fdput(f);
return ret;
}
diff --git a/mm/vmacache.c b/mm/vmacache.c
index ea517be..cdc32a3 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -20,44 +20,6 @@
#define VMACACHE_HASH(addr) ((addr >> VMACACHE_SHIFT) & VMACACHE_MASK)
/*
- * Flush vma caches for threads that share a given mm.
- *
- * The operation is safe because the caller holds the mmap_sem
- * exclusively and other threads accessing the vma cache will
- * have mmap_sem held at least for read, so no extra locking
- * is required to maintain the vma cache.
- */
-void vmacache_flush_all(struct mm_struct *mm)
-{
- struct task_struct *g, *p;
-
- count_vm_vmacache_event(VMACACHE_FULL_FLUSHES);
-
- /*
- * Single threaded tasks need not iterate the entire
- * list of process. We can avoid the flushing as well
- * since the mm's seqnum was increased and don't have
- * to worry about other threads' seqnum. Current's
- * flush will occur upon the next lookup.
- */
- if (atomic_read(&mm->mm_users) == 1)
- return;
-
- rcu_read_lock();
- for_each_process_thread(g, p) {
- /*
- * Only flush the vmacache pointers as the
- * mm seqnum is already set and curr's will
- * be set upon invalidation when the next
- * lookup is done.
- */
- if (mm == p->mm)
- vmacache_flush(p);
- }
- rcu_read_unlock();
-}
-
-/*
* This task may be accessing a foreign mm via (for example)
* get_user_pages()->find_vma(). The vmacache is task-local and this
* task's vmacache pertains to a different mm (ie, its own). There is
diff --git a/scripts/subarch.include b/scripts/subarch.include
new file mode 100644
index 0000000..6506828
--- /dev/null
+++ b/scripts/subarch.include
@@ -0,0 +1,13 @@
+# SUBARCH tells the usermode build what the underlying arch is. That is set
+# first, and if a usermode build is happening, the "ARCH=um" on the command
+# line overrides the setting of ARCH below. If a native build is happening,
+# then ARCH is assigned, getting whatever value it gets normally, and
+# SUBARCH is subsequently ignored.
+
+SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
+ -e s/sun4u/sparc64/ \
+ -e s/arm.*/arm/ -e s/sa110/arm/ \
+ -e s/s390x/s390/ -e s/parisc64/parisc/ \
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+ -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
+ -e s/riscv.*/riscv/)
diff --git a/security/Kconfig b/security/Kconfig
index 27d8b26..d9aa521 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -57,7 +57,7 @@
config PAGE_TABLE_ISOLATION
bool "Remove the kernel mapping in user mode"
default y
- depends on X86 && !UML
+ depends on (X86_64 || X86_PAE) && !UML
help
This feature reduces the number of hardware side channels by
ensuring that the majority of kernel addresses are not mapped
diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h
index 16e006f..4602464 100644
--- a/tools/arch/arm/include/uapi/asm/kvm.h
+++ b/tools/arch/arm/include/uapi/asm/kvm.h
@@ -27,6 +27,7 @@
#define __KVM_HAVE_GUEST_DEBUG
#define __KVM_HAVE_IRQ_LINE
#define __KVM_HAVE_READONLY_MEM
+#define __KVM_HAVE_VCPU_EVENTS
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
@@ -125,6 +126,18 @@ struct kvm_sync_regs {
struct kvm_arch_memory_slot {
};
+/* for KVM_GET/SET_VCPU_EVENTS */
+struct kvm_vcpu_events {
+ struct {
+ __u8 serror_pending;
+ __u8 serror_has_esr;
+ /* Align it to 8 bytes */
+ __u8 pad[6];
+ __u64 serror_esr;
+ } exception;
+ __u32 reserved[12];
+};
+
/* If you need to interpret the index values, here is the key: */
#define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
#define KVM_REG_ARM_COPROC_SHIFT 16
diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h
index 4e76630..97c3478 100644
--- a/tools/arch/arm64/include/uapi/asm/kvm.h
+++ b/tools/arch/arm64/include/uapi/asm/kvm.h
@@ -39,6 +39,7 @@
#define __KVM_HAVE_GUEST_DEBUG
#define __KVM_HAVE_IRQ_LINE
#define __KVM_HAVE_READONLY_MEM
+#define __KVM_HAVE_VCPU_EVENTS
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
@@ -154,6 +155,18 @@ struct kvm_sync_regs {
struct kvm_arch_memory_slot {
};
+/* for KVM_GET/SET_VCPU_EVENTS */
+struct kvm_vcpu_events {
+ struct {
+ __u8 serror_pending;
+ __u8 serror_has_esr;
+ /* Align it to 8 bytes */
+ __u8 pad[6];
+ __u64 serror_esr;
+ } exception;
+ __u32 reserved[12];
+};
+
/* If you need to interpret the index values, here is the key: */
#define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
#define KVM_REG_ARM_COPROC_SHIFT 16
diff --git a/tools/arch/s390/include/uapi/asm/kvm.h b/tools/arch/s390/include/uapi/asm/kvm.h
index 4cdaa55..9a50f02 100644
--- a/tools/arch/s390/include/uapi/asm/kvm.h
+++ b/tools/arch/s390/include/uapi/asm/kvm.h
@@ -4,7 +4,7 @@
/*
* KVM s390 specific structures and definitions
*
- * Copyright IBM Corp. 2008
+ * Copyright IBM Corp. 2008, 2018
*
* Author(s): Carsten Otte <cotte@de.ibm.com>
* Christian Borntraeger <borntraeger@de.ibm.com>
@@ -225,6 +225,7 @@ struct kvm_guest_debug_arch {
#define KVM_SYNC_FPRS (1UL << 8)
#define KVM_SYNC_GSCB (1UL << 9)
#define KVM_SYNC_BPBC (1UL << 10)
+#define KVM_SYNC_ETOKEN (1UL << 11)
/* length and alignment of the sdnx as a power of two */
#define SDNXC 8
#define SDNXL (1UL << SDNXC)
@@ -258,6 +259,8 @@ struct kvm_sync_regs {
struct {
__u64 reserved1[2];
__u64 gscb[4];
+ __u64 etoken;
+ __u64 etoken_extension;
};
};
};
diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h
index c535c2f..86299ef 100644
--- a/tools/arch/x86/include/uapi/asm/kvm.h
+++ b/tools/arch/x86/include/uapi/asm/kvm.h
@@ -378,4 +378,41 @@ struct kvm_sync_regs {
#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
+#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
+
+#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_SMM_VMXON 0x00000002
+
+struct kvm_vmx_nested_state {
+ __u64 vmxon_pa;
+ __u64 vmcs_pa;
+
+ struct {
+ __u16 flags;
+ } smm;
+};
+
+/* for KVM_CAP_NESTED_STATE */
+struct kvm_nested_state {
+ /* KVM_STATE_* flags */
+ __u16 flags;
+
+ /* 0 for VMX, 1 for SVM. */
+ __u16 format;
+
+ /* 128 for SVM, 128 + VMCS size for VMX. */
+ __u32 size;
+
+ union {
+ /* VMXON, VMCS */
+ struct kvm_vmx_nested_state vmx;
+
+ /* Pad the header to 128 bytes. */
+ __u8 pad[120];
+ };
+
+ __u8 data[0];
+};
+
#endif /* _ASM_X86_KVM_H */
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index dbf6e8b..bbb2a8e 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -286,7 +286,7 @@ static int kvp_key_delete(int pool, const __u8 *key, int key_size)
* Found a match; just move the remaining
* entries up.
*/
- if (i == num_records) {
+ if (i == (num_records - 1)) {
kvp_file_info[pool].num_records--;
kvp_update_file(pool);
return 0;
diff --git a/tools/include/linux/lockdep.h b/tools/include/linux/lockdep.h
index 6b0c36a..e569972 100644
--- a/tools/include/linux/lockdep.h
+++ b/tools/include/linux/lockdep.h
@@ -30,9 +30,12 @@ struct task_struct {
struct held_lock held_locks[MAX_LOCK_DEPTH];
gfp_t lockdep_reclaim_gfp;
int pid;
+ int state;
char comm[17];
};
+#define TASK_RUNNING 0
+
extern struct task_struct *__curr(void);
#define current (__curr())
diff --git a/tools/include/linux/nmi.h b/tools/include/linux/nmi.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tools/include/linux/nmi.h
diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h
index 4299067..df4bedb 100644
--- a/tools/include/uapi/asm-generic/unistd.h
+++ b/tools/include/uapi/asm-generic/unistd.h
@@ -734,9 +734,11 @@ __SYSCALL(__NR_pkey_free, sys_pkey_free)
__SYSCALL(__NR_statx, sys_statx)
#define __NR_io_pgetevents 292
__SC_COMP(__NR_io_pgetevents, sys_io_pgetevents, compat_sys_io_pgetevents)
+#define __NR_rseq 293
+__SYSCALL(__NR_rseq, sys_rseq)
#undef __NR_syscalls
-#define __NR_syscalls 293
+#define __NR_syscalls 294
/*
* 32 bit systems traditionally used different
diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h
index 9c660e1..300f336 100644
--- a/tools/include/uapi/drm/drm.h
+++ b/tools/include/uapi/drm/drm.h
@@ -687,6 +687,15 @@ struct drm_get_cap {
*/
#define DRM_CLIENT_CAP_ASPECT_RATIO 4
+/**
+ * DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
+ *
+ * If set to 1, the DRM core will expose special connectors to be used for
+ * writing back to memory the scene setup in the commit. Depends on client
+ * also supporting DRM_CLIENT_CAP_ATOMIC
+ */
+#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5
+
/** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
struct drm_set_client_cap {
__u64 capability;
diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h
index cf01b68..43391e2 100644
--- a/tools/include/uapi/linux/if_link.h
+++ b/tools/include/uapi/linux/if_link.h
@@ -164,6 +164,8 @@ enum {
IFLA_CARRIER_UP_COUNT,
IFLA_CARRIER_DOWN_COUNT,
IFLA_NEW_IFINDEX,
+ IFLA_MIN_MTU,
+ IFLA_MAX_MTU,
__IFLA_MAX
};
@@ -334,6 +336,7 @@ enum {
IFLA_BRPORT_GROUP_FWD_MASK,
IFLA_BRPORT_NEIGH_SUPPRESS,
IFLA_BRPORT_ISOLATED,
+ IFLA_BRPORT_BACKUP_PORT,
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
@@ -459,6 +462,16 @@ enum {
#define IFLA_MACSEC_MAX (__IFLA_MACSEC_MAX - 1)
+/* XFRM section */
+enum {
+ IFLA_XFRM_UNSPEC,
+ IFLA_XFRM_LINK,
+ IFLA_XFRM_IF_ID,
+ __IFLA_XFRM_MAX
+};
+
+#define IFLA_XFRM_MAX (__IFLA_XFRM_MAX - 1)
+
enum macsec_validation_type {
MACSEC_VALIDATE_DISABLED = 0,
MACSEC_VALIDATE_CHECK = 1,
@@ -920,6 +933,7 @@ enum {
XDP_ATTACHED_DRV,
XDP_ATTACHED_SKB,
XDP_ATTACHED_HW,
+ XDP_ATTACHED_MULTI,
};
enum {
@@ -928,6 +942,9 @@ enum {
IFLA_XDP_ATTACHED,
IFLA_XDP_FLAGS,
IFLA_XDP_PROG_ID,
+ IFLA_XDP_DRV_PROG_ID,
+ IFLA_XDP_SKB_PROG_ID,
+ IFLA_XDP_HW_PROG_ID,
__IFLA_XDP_MAX,
};
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index b6270a3..07548de 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -949,6 +949,9 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_GET_MSR_FEATURES 153
#define KVM_CAP_HYPERV_EVENTFD 154
#define KVM_CAP_HYPERV_TLBFLUSH 155
+#define KVM_CAP_S390_HPAGE_1M 156
+#define KVM_CAP_NESTED_STATE 157
+#define KVM_CAP_ARM_INJECT_SERROR_ESR 158
#ifdef KVM_CAP_IRQ_ROUTING
@@ -1391,6 +1394,9 @@ struct kvm_enc_region {
/* Available with KVM_CAP_HYPERV_EVENTFD */
#define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
+/* Available with KVM_CAP_NESTED_STATE */
+#define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
+#define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
/* Secure Encrypted Virtualization command */
enum sev_cmd_id {
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index eeb787b..f35eb72 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -144,7 +144,7 @@ enum perf_event_sample_format {
PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */
- __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63,
+ __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */
};
/*
diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h
index c51f8e5..84c3de8 100644
--- a/tools/include/uapi/linux/vhost.h
+++ b/tools/include/uapi/linux/vhost.h
@@ -65,6 +65,7 @@ struct vhost_iotlb_msg {
};
#define VHOST_IOTLB_MSG 0x1
+#define VHOST_IOTLB_MSG_V2 0x2
struct vhost_msg {
int type;
@@ -74,6 +75,15 @@ struct vhost_msg {
};
};
+struct vhost_msg_v2 {
+ __u32 type;
+ __u32 reserved;
+ union {
+ struct vhost_iotlb_msg iotlb;
+ __u8 padding[64];
+ };
+};
+
struct vhost_memory_region {
__u64 guest_phys_addr;
__u64 memory_size; /* bytes */
@@ -160,6 +170,14 @@ struct vhost_memory {
#define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, \
struct vhost_vring_state)
+/* Set or get vhost backend capability */
+
+/* Use message type V2 */
+#define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1
+
+#define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
+#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
+
/* VHOST_NET specific defines */
/* Attach virtio net ring to a raw socket, or tap device.
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index b3d1b12..5224ade 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -777,14 +777,12 @@
$(call QUIET_INSTALL, libexec) \
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
ifndef NO_LIBBPF
- $(call QUIET_INSTALL, lib) \
- $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'
- $(call QUIET_INSTALL, include/bpf) \
- $(INSTALL) include/bpf/*.h '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'
- $(call QUIET_INSTALL, lib) \
- $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'
- $(call QUIET_INSTALL, examples/bpf) \
- $(INSTALL) examples/bpf/*.c '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'
+ $(call QUIET_INSTALL, bpf-headers) \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \
+ $(INSTALL) include/bpf/*.h -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'
+ $(call QUIET_INSTALL, bpf-examples) \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'; \
+ $(INSTALL) examples/bpf/*.c -t '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'
endif
$(call QUIET_INSTALL, perf-archive) \
$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile
index f013b11..dbef716 100644
--- a/tools/perf/arch/arm64/Makefile
+++ b/tools/perf/arch/arm64/Makefile
@@ -11,7 +11,8 @@
out := $(OUTPUT)arch/arm64/include/generated/asm
header := $(out)/syscalls.c
-sysdef := $(srctree)/tools/include/uapi/asm-generic/unistd.h
+incpath := $(srctree)/tools
+sysdef := $(srctree)/tools/arch/arm64/include/uapi/asm/unistd.h
sysprf := $(srctree)/tools/perf/arch/arm64/entry/syscalls/
systbl := $(sysprf)/mksyscalltbl
@@ -19,7 +20,7 @@
_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
$(header): $(sysdef) $(systbl)
- $(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(sysdef) > $@
+ $(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@
clean::
$(call QUIET_CLEAN, arm64) $(RM) $(header)
diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
index 52e1973..2dbb8cad 100755
--- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
@@ -11,7 +11,8 @@
gcc=$1
hostcc=$2
-input=$3
+incpath=$3
+input=$4
if ! test -r $input; then
echo "Could not read input file" >&2
@@ -28,7 +29,6 @@
cat <<-_EoHEADER
#include <stdio.h>
- #define __ARCH_WANT_RENAMEAT
#include "$input"
int main(int argc, char *argv[])
{
@@ -42,7 +42,7 @@
printf "%s\n" " printf(\"#define SYSCALLTBL_ARM64_MAX_ID %d\\n\", __NR_$last_sc);"
printf "}\n"
- } | $hostcc -o $create_table_exe -x c -
+ } | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
$create_table_exe
diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c
index 20e7d74..10a44e946 100644
--- a/tools/perf/arch/powerpc/util/sym-handling.c
+++ b/tools/perf/arch/powerpc/util/sym-handling.c
@@ -22,15 +22,16 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr)
#endif
-#if !defined(_CALL_ELF) || _CALL_ELF != 2
int arch__choose_best_symbol(struct symbol *syma,
struct symbol *symb __maybe_unused)
{
char *sym = syma->name;
+#if !defined(_CALL_ELF) || _CALL_ELF != 2
/* Skip over any initial dot */
if (*sym == '.')
sym++;
+#endif
/* Avoid "SyS" kernel syscall aliases */
if (strlen(sym) >= 3 && !strncmp(sym, "SyS", 3))
@@ -41,6 +42,7 @@ int arch__choose_best_symbol(struct symbol *syma,
return SYMBOL_A;
}
+#if !defined(_CALL_ELF) || _CALL_ELF != 2
/* Allow matching against dot variants */
int arch__compare_symbol_names(const char *namea, const char *nameb)
{
diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h
index c1bd979..613709c 100644
--- a/tools/perf/arch/x86/include/arch-tests.h
+++ b/tools/perf/arch/x86/include/arch-tests.h
@@ -9,6 +9,7 @@ struct test;
int test__rdpmc(struct test *test __maybe_unused, int subtest);
int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest);
int test__insn_x86(struct test *test __maybe_unused, int subtest);
+int test__bp_modify(struct test *test, int subtest);
#ifdef HAVE_DWARF_UNWIND_SUPPORT
struct thread;
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index 8e2c5a3..586849f 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -5,3 +5,4 @@
libperf-y += rdpmc.o
libperf-y += perf-time-to-tsc.o
libperf-$(CONFIG_AUXTRACE) += insn-x86.o
+libperf-$(CONFIG_X86_64) += bp-modify.o
diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c
index cc1802f..d47d3f8 100644
--- a/tools/perf/arch/x86/tests/arch-tests.c
+++ b/tools/perf/arch/x86/tests/arch-tests.c
@@ -24,6 +24,12 @@ struct test arch_tests[] = {
.func = test__insn_x86,
},
#endif
+#if defined(__x86_64__)
+ {
+ .desc = "x86 bp modify",
+ .func = test__bp_modify,
+ },
+#endif
{
.func = NULL,
},
diff --git a/tools/perf/arch/x86/tests/bp-modify.c b/tools/perf/arch/x86/tests/bp-modify.c
new file mode 100644
index 0000000..f53e440
--- /dev/null
+++ b/tools/perf/arch/x86/tests/bp-modify.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/user.h>
+#include <syscall.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ptrace.h>
+#include <asm/ptrace.h>
+#include <errno.h>
+#include "debug.h"
+#include "tests/tests.h"
+#include "arch-tests.h"
+
+static noinline int bp_1(void)
+{
+ pr_debug("in %s\n", __func__);
+ return 0;
+}
+
+static noinline int bp_2(void)
+{
+ pr_debug("in %s\n", __func__);
+ return 0;
+}
+
+static int spawn_child(void)
+{
+ int child = fork();
+
+ if (child == 0) {
+ /*
+ * The child sets itself for as tracee and
+ * waits in signal for parent to trace it,
+ * then it calls bp_1 and quits.
+ */
+ int err = ptrace(PTRACE_TRACEME, 0, NULL, NULL);
+
+ if (err) {
+ pr_debug("failed to PTRACE_TRACEME\n");
+ exit(1);
+ }
+
+ raise(SIGCONT);
+ bp_1();
+ exit(0);
+ }
+
+ return child;
+}
+
+/*
+ * This tests creates HW breakpoint, tries to
+ * change it and checks it was properly changed.
+ */
+static int bp_modify1(void)
+{
+ pid_t child;
+ int status;
+ unsigned long rip = 0, dr7 = 1;
+
+ child = spawn_child();
+
+ waitpid(child, &status, 0);
+ if (WIFEXITED(status)) {
+ pr_debug("tracee exited prematurely 1\n");
+ return TEST_FAIL;
+ }
+
+ /*
+ * The parent does following steps:
+ * - creates a new breakpoint (id 0) for bp_2 function
+ * - changes that breakponit to bp_1 function
+ * - waits for the breakpoint to hit and checks
+ * it has proper rip of bp_1 function
+ * - detaches the child
+ */
+ if (ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[0]), bp_2)) {
+ pr_debug("failed to set breakpoint, 1st time: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ if (ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[0]), bp_1)) {
+ pr_debug("failed to set breakpoint, 2nd time: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ if (ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[7]), dr7)) {
+ pr_debug("failed to set dr7: %s\n", strerror(errno));
+ goto out;
+ }
+
+ if (ptrace(PTRACE_CONT, child, NULL, NULL)) {
+ pr_debug("failed to PTRACE_CONT: %s\n", strerror(errno));
+ goto out;
+ }
+
+ waitpid(child, &status, 0);
+ if (WIFEXITED(status)) {
+ pr_debug("tracee exited prematurely 2\n");
+ return TEST_FAIL;
+ }
+
+ rip = ptrace(PTRACE_PEEKUSER, child,
+ offsetof(struct user_regs_struct, rip), NULL);
+ if (rip == (unsigned long) -1) {
+ pr_debug("failed to PTRACE_PEEKUSER: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ pr_debug("rip %lx, bp_1 %p\n", rip, bp_1);
+
+out:
+ if (ptrace(PTRACE_DETACH, child, NULL, NULL)) {
+ pr_debug("failed to PTRACE_DETACH: %s", strerror(errno));
+ return TEST_FAIL;
+ }
+
+ return rip == (unsigned long) bp_1 ? TEST_OK : TEST_FAIL;
+}
+
+/*
+ * This tests creates HW breakpoint, tries to
+ * change it to bogus value and checks the original
+ * breakpoint is hit.
+ */
+static int bp_modify2(void)
+{
+ pid_t child;
+ int status;
+ unsigned long rip = 0, dr7 = 1;
+
+ child = spawn_child();
+
+ waitpid(child, &status, 0);
+ if (WIFEXITED(status)) {
+ pr_debug("tracee exited prematurely 1\n");
+ return TEST_FAIL;
+ }
+
+ /*
+ * The parent does following steps:
+ * - creates a new breakpoint (id 0) for bp_1 function
+ * - tries to change that breakpoint to (-1) address
+ * - waits for the breakpoint to hit and checks
+ * it has proper rip of bp_1 function
+ * - detaches the child
+ */
+ if (ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[0]), bp_1)) {
+ pr_debug("failed to set breakpoint: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ if (ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[7]), dr7)) {
+ pr_debug("failed to set dr7: %s\n", strerror(errno));
+ goto out;
+ }
+
+ if (!ptrace(PTRACE_POKEUSER, child,
+ offsetof(struct user, u_debugreg[0]), (unsigned long) (-1))) {
+ pr_debug("failed, breakpoint set to bogus address\n");
+ goto out;
+ }
+
+ if (ptrace(PTRACE_CONT, child, NULL, NULL)) {
+ pr_debug("failed to PTRACE_CONT: %s\n", strerror(errno));
+ goto out;
+ }
+
+ waitpid(child, &status, 0);
+ if (WIFEXITED(status)) {
+ pr_debug("tracee exited prematurely 2\n");
+ return TEST_FAIL;
+ }
+
+ rip = ptrace(PTRACE_PEEKUSER, child,
+ offsetof(struct user_regs_struct, rip), NULL);
+ if (rip == (unsigned long) -1) {
+ pr_debug("failed to PTRACE_PEEKUSER: %s\n",
+ strerror(errno));
+ goto out;
+ }
+
+ pr_debug("rip %lx, bp_1 %p\n", rip, bp_1);
+
+out:
+ if (ptrace(PTRACE_DETACH, child, NULL, NULL)) {
+ pr_debug("failed to PTRACE_DETACH: %s", strerror(errno));
+ return TEST_FAIL;
+ }
+
+ return rip == (unsigned long) bp_1 ? TEST_OK : TEST_FAIL;
+}
+
+int test__bp_modify(struct test *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ TEST_ASSERT_VAL("modify test 1 failed\n", !bp_modify1());
+ TEST_ASSERT_VAL("modify test 2 failed\n", !bp_modify2());
+
+ return 0;
+}
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 20061cf..28cd6a1 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -246,8 +246,14 @@ static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_s
indirect_call:
tok = strchr(endptr, '*');
- if (tok != NULL)
- ops->target.addr = strtoull(tok + 1, NULL, 16);
+ if (tok != NULL) {
+ endptr++;
+
+ /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx).
+ * Do not parse such instruction. */
+ if (strstr(endptr, "(%r") == NULL)
+ ops->target.addr = strtoull(endptr, NULL, 16);
+ }
goto find_target;
}
@@ -276,7 +282,19 @@ bool ins__is_call(const struct ins *ins)
return ins->ops == &call_ops || ins->ops == &s390_call_ops;
}
-static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms)
+/*
+ * Prevents from matching commas in the comment section, e.g.:
+ * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast
+ */
+static inline const char *validate_comma(const char *c, struct ins_operands *ops)
+{
+ if (ops->raw_comment && c > ops->raw_comment)
+ return NULL;
+
+ return c;
+}
+
+static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
{
struct map *map = ms->map;
struct symbol *sym = ms->sym;
@@ -285,6 +303,10 @@ static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *op
};
const char *c = strchr(ops->raw, ',');
u64 start, end;
+
+ ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
+ c = validate_comma(c, ops);
+
/*
* Examples of lines to parse for the _cpp_lex_token@@Base
* function:
@@ -304,6 +326,7 @@ static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *op
ops->target.addr = strtoull(c, NULL, 16);
if (!ops->target.addr) {
c = strchr(c, ',');
+ c = validate_comma(c, ops);
if (c++ != NULL)
ops->target.addr = strtoull(c, NULL, 16);
}
@@ -361,9 +384,12 @@ static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.sym->name);
c = strchr(ops->raw, ',');
+ c = validate_comma(c, ops);
+
if (c != NULL) {
const char *c2 = strchr(c + 1, ',');
+ c2 = validate_comma(c2, ops);
/* check for 3-op insn */
if (c2 != NULL)
c = c2;
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 005a5fe..5399ba2 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -22,6 +22,7 @@ struct ins {
struct ins_operands {
char *raw;
+ char *raw_comment;
struct {
char *raw;
char *name;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index c980bbf..1a61628 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -251,8 +251,9 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
{
struct perf_evsel *evsel = zalloc(perf_evsel__object.size);
- if (evsel != NULL)
- perf_evsel__init(evsel, attr, idx);
+ if (!evsel)
+ return NULL;
+ perf_evsel__init(evsel, attr, idx);
if (perf_evsel__is_bpf_output(evsel)) {
evsel->attr.sample_type |= (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 36d0763..6a6929f 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -576,6 +576,13 @@ struct symbol *map_groups__find_symbol(struct map_groups *mg,
return NULL;
}
+static bool map__contains_symbol(struct map *map, struct symbol *sym)
+{
+ u64 ip = map->unmap_ip(map, sym->start);
+
+ return ip >= map->start && ip < map->end;
+}
+
struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
struct map **mapp)
{
@@ -591,6 +598,10 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
if (sym == NULL)
continue;
+ if (!map__contains_symbol(pos, sym)) {
+ sym = NULL;
+ continue;
+ }
if (mapp != NULL)
*mapp = pos;
goto out;
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index c85d0d1..7b0ca7c 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -377,7 +377,7 @@ static int record_ftrace_printk(void)
static int record_saved_cmdline(void)
{
- unsigned int size;
+ unsigned long long size;
char *path;
struct stat st;
int ret, err = 0;
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 920b1d5..e76214f 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -164,16 +164,15 @@ void parse_ftrace_printk(struct tep_handle *pevent,
void parse_saved_cmdline(struct tep_handle *pevent,
char *file, unsigned int size __maybe_unused)
{
- char *comm;
+ char comm[17]; /* Max comm length in the kernel is 16. */
char *line;
char *next = NULL;
int pid;
line = strtok_r(file, "\n", &next);
while (line) {
- sscanf(line, "%d %ms", &pid, &comm);
- tep_register_comm(pevent, comm, pid);
- free(comm);
+ if (sscanf(line, "%d %16s", &pid, comm) == 2)
+ tep_register_comm(pevent, comm, pid);
line = strtok_r(NULL, "\n", &next);
}
}
diff --git a/tools/testing/selftests/android/Makefile b/tools/testing/selftests/android/Makefile
index 72c25a3..d9a7254 100644
--- a/tools/testing/selftests/android/Makefile
+++ b/tools/testing/selftests/android/Makefile
@@ -6,7 +6,7 @@
include ../lib.mk
-all:
+all: khdr
@for DIR in $(SUBDIRS); do \
BUILD_TARGET=$(OUTPUT)/$$DIR; \
mkdir $$BUILD_TARGET -p; \
diff --git a/tools/testing/selftests/android/ion/config b/tools/testing/selftests/android/config
similarity index 100%
rename from tools/testing/selftests/android/ion/config
rename to tools/testing/selftests/android/config
diff --git a/tools/testing/selftests/android/ion/Makefile b/tools/testing/selftests/android/ion/Makefile
index e036952..88cfe88 100644
--- a/tools/testing/selftests/android/ion/Makefile
+++ b/tools/testing/selftests/android/ion/Makefile
@@ -10,6 +10,8 @@
TEST_PROGS := ion_test.sh
+KSFT_KHDR_INSTALL := 1
+top_srcdir = ../../../../..
include ../../lib.mk
$(OUTPUT)/ionapp_export: ionapp_export.c ipcsocket.c ionutils.c
diff --git a/tools/testing/selftests/cgroup/.gitignore b/tools/testing/selftests/cgroup/.gitignore
index 95eb3a5..adacda5 100644
--- a/tools/testing/selftests/cgroup/.gitignore
+++ b/tools/testing/selftests/cgroup/.gitignore
@@ -1 +1,2 @@
test_memcontrol
+test_core
diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 1c5d2b2..14c9fe2 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -89,17 +89,28 @@ int cg_read(const char *cgroup, const char *control, char *buf, size_t len)
int cg_read_strcmp(const char *cgroup, const char *control,
const char *expected)
{
- size_t size = strlen(expected) + 1;
+ size_t size;
char *buf;
+ int ret;
+
+ /* Handle the case of comparing against empty string */
+ if (!expected)
+ size = 32;
+ else
+ size = strlen(expected) + 1;
buf = malloc(size);
if (!buf)
return -1;
- if (cg_read(cgroup, control, buf, size))
+ if (cg_read(cgroup, control, buf, size)) {
+ free(buf);
return -1;
+ }
- return strcmp(expected, buf);
+ ret = strcmp(expected, buf);
+ free(buf);
+ return ret;
}
int cg_read_strstr(const char *cgroup, const char *control, const char *needle)
@@ -337,3 +348,24 @@ int is_swap_enabled(void)
return cnt > 1;
}
+
+int set_oom_adj_score(int pid, int score)
+{
+ char path[PATH_MAX];
+ int fd, len;
+
+ sprintf(path, "/proc/%d/oom_score_adj", pid);
+
+ fd = open(path, O_WRONLY | O_APPEND);
+ if (fd < 0)
+ return fd;
+
+ len = dprintf(fd, "%d", score);
+ if (len < 0) {
+ close(fd);
+ return len;
+ }
+
+ close(fd);
+ return 0;
+}
diff --git a/tools/testing/selftests/cgroup/cgroup_util.h b/tools/testing/selftests/cgroup/cgroup_util.h
index 1ff6f9f..9ac8b79 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.h
+++ b/tools/testing/selftests/cgroup/cgroup_util.h
@@ -40,3 +40,4 @@ extern int get_temp_fd(void);
extern int alloc_pagecache(int fd, size_t size);
extern int alloc_anon(const char *cgroup, void *arg);
extern int is_swap_enabled(void);
+extern int set_oom_adj_score(int pid, int score);
diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c
index cf0bddc..28d321b 100644
--- a/tools/testing/selftests/cgroup/test_memcontrol.c
+++ b/tools/testing/selftests/cgroup/test_memcontrol.c
@@ -2,6 +2,7 @@
#define _GNU_SOURCE
#include <linux/limits.h>
+#include <linux/oom.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
@@ -202,6 +203,36 @@ static int alloc_pagecache_50M_noexit(const char *cgroup, void *arg)
return 0;
}
+static int alloc_anon_noexit(const char *cgroup, void *arg)
+{
+ int ppid = getppid();
+
+ if (alloc_anon(cgroup, arg))
+ return -1;
+
+ while (getppid() == ppid)
+ sleep(1);
+
+ return 0;
+}
+
+/*
+ * Wait until processes are killed asynchronously by the OOM killer
+ * If we exceed a timeout, fail.
+ */
+static int cg_test_proc_killed(const char *cgroup)
+{
+ int limit;
+
+ for (limit = 10; limit > 0; limit--) {
+ if (cg_read_strcmp(cgroup, "cgroup.procs", "") == 0)
+ return 0;
+
+ usleep(100000);
+ }
+ return -1;
+}
+
/*
* First, this test creates the following hierarchy:
* A memory.min = 50M, memory.max = 200M
@@ -964,6 +995,177 @@ static int test_memcg_sock(const char *root)
return ret;
}
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes in the leaf (but not the parent) were killed.
+ */
+static int test_memcg_oom_group_leaf_events(const char *root)
+{
+ int ret = KSFT_FAIL;
+ char *parent, *child;
+
+ parent = cg_name(root, "memcg_test_0");
+ child = cg_name(root, "memcg_test_0/memcg_test_1");
+
+ if (!parent || !child)
+ goto cleanup;
+
+ if (cg_create(parent))
+ goto cleanup;
+
+ if (cg_create(child))
+ goto cleanup;
+
+ if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+ goto cleanup;
+
+ if (cg_write(child, "memory.max", "50M"))
+ goto cleanup;
+
+ if (cg_write(child, "memory.swap.max", "0"))
+ goto cleanup;
+
+ if (cg_write(child, "memory.oom.group", "1"))
+ goto cleanup;
+
+ cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));
+ cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+ cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+ if (!cg_run(child, alloc_anon, (void *)MB(100)))
+ goto cleanup;
+
+ if (cg_test_proc_killed(child))
+ goto cleanup;
+
+ if (cg_read_key_long(child, "memory.events", "oom_kill ") <= 0)
+ goto cleanup;
+
+ if (cg_read_key_long(parent, "memory.events", "oom_kill ") != 0)
+ goto cleanup;
+
+ ret = KSFT_PASS;
+
+cleanup:
+ if (child)
+ cg_destroy(child);
+ if (parent)
+ cg_destroy(parent);
+ free(child);
+ free(parent);
+
+ return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes in the parent and leaf were killed.
+ */
+static int test_memcg_oom_group_parent_events(const char *root)
+{
+ int ret = KSFT_FAIL;
+ char *parent, *child;
+
+ parent = cg_name(root, "memcg_test_0");
+ child = cg_name(root, "memcg_test_0/memcg_test_1");
+
+ if (!parent || !child)
+ goto cleanup;
+
+ if (cg_create(parent))
+ goto cleanup;
+
+ if (cg_create(child))
+ goto cleanup;
+
+ if (cg_write(parent, "memory.max", "80M"))
+ goto cleanup;
+
+ if (cg_write(parent, "memory.swap.max", "0"))
+ goto cleanup;
+
+ if (cg_write(parent, "memory.oom.group", "1"))
+ goto cleanup;
+
+ cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));
+ cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+ cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+
+ if (!cg_run(child, alloc_anon, (void *)MB(100)))
+ goto cleanup;
+
+ if (cg_test_proc_killed(child))
+ goto cleanup;
+ if (cg_test_proc_killed(parent))
+ goto cleanup;
+
+ ret = KSFT_PASS;
+
+cleanup:
+ if (child)
+ cg_destroy(child);
+ if (parent)
+ cg_destroy(parent);
+ free(child);
+ free(parent);
+
+ return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes were killed except those set with OOM_SCORE_ADJ_MIN
+ */
+static int test_memcg_oom_group_score_events(const char *root)
+{
+ int ret = KSFT_FAIL;
+ char *memcg;
+ int safe_pid;
+
+ memcg = cg_name(root, "memcg_test_0");
+
+ if (!memcg)
+ goto cleanup;
+
+ if (cg_create(memcg))
+ goto cleanup;
+
+ if (cg_write(memcg, "memory.max", "50M"))
+ goto cleanup;
+
+ if (cg_write(memcg, "memory.swap.max", "0"))
+ goto cleanup;
+
+ if (cg_write(memcg, "memory.oom.group", "1"))
+ goto cleanup;
+
+ safe_pid = cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1));
+ if (set_oom_adj_score(safe_pid, OOM_SCORE_ADJ_MIN))
+ goto cleanup;
+
+ cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1));
+ if (!cg_run(memcg, alloc_anon, (void *)MB(100)))
+ goto cleanup;
+
+ if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 3)
+ goto cleanup;
+
+ if (kill(safe_pid, SIGKILL))
+ goto cleanup;
+
+ ret = KSFT_PASS;
+
+cleanup:
+ if (memcg)
+ cg_destroy(memcg);
+ free(memcg);
+
+ return ret;
+}
+
+
#define T(x) { x, #x }
struct memcg_test {
int (*fn)(const char *root);
@@ -978,6 +1180,9 @@ struct memcg_test {
T(test_memcg_oom_events),
T(test_memcg_swap_max),
T(test_memcg_sock),
+ T(test_memcg_oom_group_leaf_events),
+ T(test_memcg_oom_group_parent_events),
+ T(test_memcg_oom_group_score_events),
};
#undef T
diff --git a/tools/testing/selftests/efivarfs/config b/tools/testing/selftests/efivarfs/config
new file mode 100644
index 0000000..4e151f1
--- /dev/null
+++ b/tools/testing/selftests/efivarfs/config
@@ -0,0 +1 @@
+CONFIG_EFIVAR_FS=y
diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
index ff8feca..ad1eeb1 100644
--- a/tools/testing/selftests/futex/functional/Makefile
+++ b/tools/testing/selftests/futex/functional/Makefile
@@ -18,6 +18,7 @@
TEST_PROGS := run.sh
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_FILES): $(HEADERS)
diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 1bbb475..4665cdb 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -21,11 +21,8 @@
CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/
LDLIBS += -lmount -I/usr/include/libmount
-$(BINARIES): ../../../gpio/gpio-utils.o ../../../../usr/include/linux/gpio.h
+$(BINARIES):| khdr
+$(BINARIES): ../../../gpio/gpio-utils.o
../../../gpio/gpio-utils.o:
make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C ../../../gpio
-
-../../../../usr/include/linux/gpio.h:
- make -C ../../../.. headers_install INSTALL_HDR_PATH=$(shell pwd)/../../../../usr/
-
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index 15e6b75..a3edb2c 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -19,7 +19,6 @@
#define KSFT_FAIL 1
#define KSFT_XFAIL 2
#define KSFT_XPASS 3
-/* Treat skip as pass */
#define KSFT_SKIP 4
/* counters */
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 03b0f55..87d1a84 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -37,9 +37,6 @@
$(OUTPUT)/libkvm.a: $(LIBKVM_OBJ)
$(AR) crs $@ $^
-$(LINUX_HDR_PATH):
- make -C $(top_srcdir) headers_install
-
-all: $(STATIC_LIBS) $(LINUX_HDR_PATH)
+all: $(STATIC_LIBS)
$(TEST_GEN_PROGS): $(STATIC_LIBS)
-$(TEST_GEN_PROGS) $(LIBKVM_OBJ): | $(LINUX_HDR_PATH)
+$(STATIC_LIBS):| khdr
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 17ab366..0a8e758 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -16,8 +16,20 @@
TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
+top_srcdir ?= ../../../..
+include $(top_srcdir)/scripts/subarch.include
+ARCH ?= $(SUBARCH)
+
all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
+.PHONY: khdr
+khdr:
+ make ARCH=$(ARCH) -C $(top_srcdir) headers_install
+
+ifdef KSFT_KHDR_INSTALL
+$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES):| khdr
+endif
+
.ONESHELL:
define RUN_TEST_PRINT_RESULT
TEST_HDR_MSG="selftests: "`basename $$PWD`:" $$BASENAME_TEST"; \
diff --git a/tools/testing/selftests/memory-hotplug/config b/tools/testing/selftests/memory-hotplug/config
index 2fde301..a7e8cd5 100644
--- a/tools/testing/selftests/memory-hotplug/config
+++ b/tools/testing/selftests/memory-hotplug/config
@@ -2,3 +2,4 @@
CONFIG_MEMORY_HOTPLUG_SPARSE=y
CONFIG_NOTIFIER_ERROR_INJECTION=y
CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
+CONFIG_MEMORY_HOTREMOVE=y
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 9cca68e..919aa2a 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -15,6 +15,7 @@
TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict tls
+KSFT_KHDR_INSTALL := 1
include ../lib.mk
$(OUTPUT)/reuseport_bpf_numa: LDFLAGS += -lnuma
diff --git a/tools/testing/selftests/networking/timestamping/Makefile b/tools/testing/selftests/networking/timestamping/Makefile
index a728040..14cfcf0 100644
--- a/tools/testing/selftests/networking/timestamping/Makefile
+++ b/tools/testing/selftests/networking/timestamping/Makefile
@@ -5,6 +5,7 @@
all: $(TEST_PROGS)
+top_srcdir = ../../../../..
include ../../lib.mk
clean:
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 9881876..e94b7b1 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -26,10 +26,6 @@
include ../lib.mk
-$(OUTPUT)/userfaultfd: ../../../../usr/include/linux/kernel.h
$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
$(OUTPUT)/mlock-random-test: LDLIBS += -lcap
-
-../../../../usr/include/linux/kernel.h:
- make -C ../../../.. headers_install
