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authorArjan van de Ven <arjan@infradead.org>2006-03-28 13:56:42 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 21:16:06 +0400
commit4b6f5d20b04dcbc3d888555522b90ba6d36c4106 (patch)
tree420f271eaef7d3def7d4433b151c3cb6d7a54770 /fs/bfs
parent99ac48f54a91d02140c497edc31dc57d4bc5c85d (diff)
downloadlinux-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.tar.xz
[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>
Diffstat (limited to 'fs/bfs')
-rw-r--r--fs/bfs/bfs.h4
-rw-r--r--fs/bfs/dir.c2
-rw-r--r--fs/bfs/file.c2
3 files changed, 4 insertions, 4 deletions
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 1fbc53f14aba..9d791004b21c 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -49,11 +49,11 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
/* file.c */
extern struct inode_operations bfs_file_inops;
-extern struct file_operations bfs_file_operations;
+extern const struct file_operations bfs_file_operations;
extern struct address_space_operations bfs_aops;
/* dir.c */
extern struct inode_operations bfs_dir_inops;
-extern struct file_operations bfs_dir_operations;
+extern const struct file_operations bfs_dir_operations;
#endif /* _FS_BFS_BFS_H */
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 5af928fa0449..26fad9621738 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -70,7 +70,7 @@ static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
return 0;
}
-struct file_operations bfs_dir_operations = {
+const struct file_operations bfs_dir_operations = {
.read = generic_read_dir,
.readdir = bfs_readdir,
.fsync = file_fsync,
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index 807723b65daf..d83cd74a2e4e 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -17,7 +17,7 @@
#define dprintf(x...)
#endif
-struct file_operations bfs_file_operations = {
+const struct file_operations bfs_file_operations = {
.llseek = generic_file_llseek,
.read = generic_file_read,
.write = generic_file_write,