| config F2FS_FS | |
| tristate "F2FS filesystem support" | |
| depends on BLOCK | |
| select CRYPTO | |
| select CRYPTO_CRC32 | |
| help | |
| F2FS is based on Log-structured File System (LFS), which supports | |
| versatile "flash-friendly" features. The design has been focused on | |
| addressing the fundamental issues in LFS, which are snowball effect | |
| of wandering tree and high cleaning overhead. | |
| Since flash-based storages show different characteristics according to | |
| the internal geometry or flash memory management schemes aka FTL, F2FS | |
| and tools support various parameters not only for configuring on-disk | |
| layout, but also for selecting allocation and cleaning algorithms. | |
| If unsure, say N. | |
| config F2FS_STAT_FS | |
| bool "F2FS Status Information" | |
| depends on F2FS_FS && DEBUG_FS | |
| default y | |
| help | |
| /sys/kernel/debug/f2fs/ contains information about all the partitions | |
| mounted as f2fs. Each file shows the whole f2fs information. | |
| /sys/kernel/debug/f2fs/status includes: | |
| - major filesystem information managed by f2fs currently | |
| - average SIT information about whole segments | |
| - current memory footprint consumed by f2fs. | |
| config F2FS_FS_XATTR | |
| bool "F2FS extended attributes" | |
| depends on F2FS_FS | |
| default y | |
| help | |
| Extended attributes are name:value pairs associated with inodes by | |
| the kernel or by users (see the attr(5) manual page for details). | |
| If unsure, say N. | |
| config F2FS_FS_POSIX_ACL | |
| bool "F2FS Access Control Lists" | |
| depends on F2FS_FS_XATTR | |
| select FS_POSIX_ACL | |
| default y | |
| help | |
| Posix Access Control Lists (ACLs) support permissions for users and | |
| groups beyond the owner/group/world scheme. | |
| If you don't know what Access Control Lists are, say N | |
| config F2FS_FS_SECURITY | |
| bool "F2FS Security Labels" | |
| depends on F2FS_FS_XATTR | |
| help | |
| Security labels provide an access control facility to support Linux | |
| Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO | |
| Linux. This option enables an extended attribute handler for file | |
| security labels in the f2fs filesystem, so that it requires enabling | |
| the extended attribute support in advance. | |
| If you are not using a security module, say N. | |
| config F2FS_CHECK_FS | |
| bool "F2FS consistency checking feature" | |
| depends on F2FS_FS | |
| help | |
| Enables BUG_ONs which check the filesystem consistency in runtime. | |
| If you want to improve the performance, say N. | |
| config F2FS_FS_ENCRYPTION | |
| bool "F2FS Encryption" | |
| depends on F2FS_FS | |
| depends on F2FS_FS_XATTR | |
| select FS_ENCRYPTION | |
| help | |
| Enable encryption of f2fs files and directories. This | |
| feature is similar to ecryptfs, but it is more memory | |
| efficient since it avoids caching the encrypted and | |
| decrypted pages in the page cache. | |
| config F2FS_IO_TRACE | |
| bool "F2FS IO tracer" | |
| depends on F2FS_FS | |
| depends on FUNCTION_TRACER | |
| help | |
| F2FS IO trace is based on a function trace, which gathers process | |
| information and block IO patterns in the filesystem level. | |
| If unsure, say N. | |
| config F2FS_FAULT_INJECTION | |
| bool "F2FS fault injection facility" | |
| depends on F2FS_FS | |
| help | |
| Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on. | |
| If unsure, say N. |