[PATCH] Additions to .data.read_mostly section
Mark variables which are usually accessed for reads with __readmostly.
Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 34bba8f..14d7032 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -47,8 +47,8 @@
nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL;
EXPORT_SYMBOL(node_possible_map);
struct pglist_data *pgdat_list __read_mostly;
-unsigned long totalram_pages;
-unsigned long totalhigh_pages;
+unsigned long totalram_pages __read_mostly;
+unsigned long totalhigh_pages __read_mostly;
long nr_swap_pages;
/*
diff --git a/mm/shmem.c b/mm/shmem.c
index bdc4bbb..db2c9e8d 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -180,7 +180,7 @@
static struct inode_operations shmem_dir_inode_operations;
static struct vm_operations_struct shmem_vm_ops;
-static struct backing_dev_info shmem_backing_dev_info = {
+static struct backing_dev_info shmem_backing_dev_info __read_mostly = {
.ra_pages = 0, /* No readahead */
.capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
.unplug_io_fn = default_unplug_io_fn,
