[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>

3 files changed, 5 insertions, 5 deletions

diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 881f6365c41a..1e6f13864536 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -125,7 +125,7 @@ const struct file_operations ext3_file_operations = {
         .splice_write   = generic_file_splice_write,
 };
 
-struct inode_operations ext3_file_inode_operations = {
+const struct inode_operations ext3_file_inode_operations = {
         .truncate       = ext3_truncate,
         .setattr        = ext3_setattr,
 #ifdef CONFIG_EXT3_FS_XATTR
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index a8e89328e66d..49159f13cc1f 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -2365,7 +2365,7 @@ end_rename:
 /*
  * directories can handle most operations...
  */
-struct inode_operations ext3_dir_inode_operations = {
+const struct inode_operations ext3_dir_inode_operations = {
         .create         = ext3_create,
         .lookup         = ext3_lookup,
         .link           = ext3_link,
@@ -2385,7 +2385,7 @@ struct inode_operations ext3_dir_inode_operations = {
         .permission     = ext3_permission,
 };
 
-struct inode_operations ext3_special_inode_operations = {
+const struct inode_operations ext3_special_inode_operations = {
         .setattr        = ext3_setattr,
 #ifdef CONFIG_EXT3_FS_XATTR
         .setxattr       = generic_setxattr,
diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c
index 4f79122cde67..ff7b4ccd8983 100644
--- a/fs/ext3/symlink.c
+++ b/fs/ext3/symlink.c
@@ -30,7 +30,7 @@ static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
         return NULL;
 }
 
-struct inode_operations ext3_symlink_inode_operations = {
+const struct inode_operations ext3_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = page_follow_link_light,
         .put_link       = page_put_link,
@@ -42,7 +42,7 @@ struct inode_operations ext3_symlink_inode_operations = {
 #endif
 };
 
-struct inode_operations ext3_fast_symlink_inode_operations = {
+const struct inode_operations ext3_fast_symlink_inode_operations = {
         .readlink       = generic_readlink,
         .follow_link    = ext3_follow_link,
 #ifdef CONFIG_EXT3_FS_XATTR