[PATCH] Make most file operations structs in fs/ const

This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 4095bc149eb1..698b85bb1dd4 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -741,7 +741,7 @@ static int fat_dir_ioctl(struct inode * inode, struct file * filp,
         return ret;
 }
 
-struct file_operations fat_dir_operations = {
+const struct file_operations fat_dir_operations = {
         .read           = generic_read_dir,
         .readdir        = fat_readdir,
         .ioctl          = fat_dir_ioctl,
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 88aa1ae13f9f..1ee25232e6af 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -112,7 +112,7 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp,
         }
 }
 
-struct file_operations fat_file_operations = {
+const struct file_operations fat_file_operations = {
         .llseek         = generic_file_llseek,
         .read           = do_sync_read,
         .write          = do_sync_write,