[PATCH] mark struct inode_operations const 3

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, 3 insertions, 3 deletions

diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 44c45449065c..dc2e9fe69418 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -957,7 +957,7 @@ extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, uns
 extern void ufs_put_cylinder (struct super_block *, unsigned);
 
 /* dir.c */
-extern struct inode_operations ufs_dir_inode_operations;
+extern const struct inode_operations ufs_dir_inode_operations;
 extern int ufs_add_link (struct dentry *, struct inode *);
 extern ino_t ufs_inode_by_name(struct inode *, struct dentry *);
 extern int ufs_make_empty(struct inode *, struct inode *);
@@ -969,7 +969,7 @@ extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
                          struct page *page, struct inode *inode);
 
 /* file.c */
-extern struct inode_operations ufs_file_inode_operations;
+extern const struct inode_operations ufs_file_inode_operations;
 extern const struct file_operations ufs_file_operations;
 
 extern const struct address_space_operations ufs_aops;
@@ -996,7 +996,7 @@ extern void ufs_error (struct super_block *, const char *, const char *, ...) __
 extern void ufs_panic (struct super_block *, const char *, const char *, ...) __attribute__ ((format (printf, 3, 4)));
 
 /* symlink.c */
-extern struct inode_operations ufs_fast_symlink_inode_operations;
+extern const struct inode_operations ufs_fast_symlink_inode_operations;
 
 /* truncate.c */
 extern int ufs_truncate (struct inode *, loff_t);