[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>

4 files changed, 4 insertions, 4 deletions

diff --git a/fs/freevxfs/vxfs_extern.h b/fs/freevxfs/vxfs_extern.h
index 1cf1fe8466a..91ccee8723f 100644
--- a/fs/freevxfs/vxfs_extern.h
+++ b/fs/freevxfs/vxfs_extern.h
@@ -62,7 +62,7 @@ extern void			vxfs_read_inode(struct inode *);
 extern void                     vxfs_clear_inode(struct inode *);
 
 /* vxfs_lookup.c */
-extern struct inode_operations  vxfs_dir_inode_ops;
+extern const struct inode_operations    vxfs_dir_inode_ops;
 extern const struct file_operations     vxfs_dir_operations;
 
 /* vxfs_olt.c */
diff --git a/fs/freevxfs/vxfs_immed.c b/fs/freevxfs/vxfs_immed.c
index 4e25f3fbed8..24b5a775ff9 100644
--- a/fs/freevxfs/vxfs_immed.c
+++ b/fs/freevxfs/vxfs_immed.c
@@ -48,7 +48,7 @@ static int	vxfs_immed_readpage(struct file *, struct page *);
  * Unliked all other operations we do not go through the pagecache,
  * but do all work directly on the inode.
  */
-struct inode_operations vxfs_immed_symlink_iops = {
+const struct inode_operations vxfs_immed_symlink_iops = {
         .readlink =             generic_readlink,
         .follow_link =          vxfs_immed_follow_link,
 };
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index 0b7ae897cb7..098a915fd9a 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -44,7 +44,7 @@
 extern const struct address_space_operations vxfs_aops;
 extern const struct address_space_operations vxfs_immed_aops;
 
-extern struct inode_operations vxfs_immed_symlink_iops;
+extern const struct inode_operations vxfs_immed_symlink_iops;
 
 struct kmem_cache               *vxfs_inode_cachep;
 
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 3995d7fbeda..bf86e5444ea 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -52,7 +52,7 @@
 static struct dentry *  vxfs_lookup(struct inode *, struct dentry *, struct nameidata *);
 static int              vxfs_readdir(struct file *, void *, filldir_t);
 
-struct inode_operations vxfs_dir_inode_ops = {
+const struct inode_operations vxfs_dir_inode_ops = {
         .lookup =               vxfs_lookup,
 };