[PATCH] mark struct inode_operations const 2

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/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 9f41fc01a371..e07a0edcdb4f 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -153,11 +153,11 @@ void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
 
 /* dir.c */
 extern const struct file_operations jffs2_dir_operations;
-extern struct inode_operations jffs2_dir_inode_operations;
+extern const struct inode_operations jffs2_dir_inode_operations;
 
 /* file.c */
 extern const struct file_operations jffs2_file_operations;
-extern struct inode_operations jffs2_file_inode_operations;
+extern const struct inode_operations jffs2_file_inode_operations;
 extern const struct address_space_operations jffs2_file_address_operations;
 int jffs2_fsync(struct file *, struct dentry *, int);
 int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
@@ -166,7 +166,7 @@ int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
 int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
 
 /* symlink.c */
-extern struct inode_operations jffs2_symlink_inode_operations;
+extern const struct inode_operations jffs2_symlink_inode_operations;
 
 /* fs.c */
 int jffs2_setattr (struct dentry *, struct iattr *);