[PATCH] mark struct inode_operations const 1

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index fcf527286d75..e6f9da4287c4 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -30,7 +30,7 @@ static void * ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
         return NULL;
 }
 
-struct inode_operations ext4_symlink_inode_operations = {
+const struct inode_operations ext4_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = page_follow_link_light,
         .put_link       = page_put_link,
@@ -42,7 +42,7 @@ struct inode_operations ext4_symlink_inode_operations = {
 #endif
 };
 
-struct inode_operations ext4_fast_symlink_inode_operations = {
+const struct inode_operations ext4_fast_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = ext4_follow_link,
 #ifdef CONFIG_EXT4DEV_FS_XATTR