path: root/fs/sysv
diff options
authorArjan van de Ven <arjan@infradead.org>2006-03-28 01:56:42 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 09:16:06 -0800
commit4b6f5d20b04dcbc3d888555522b90ba6d36c4106 (patch)
tree420f271eaef7d3def7d4433b151c3cb6d7a54770 /fs/sysv
parent99ac48f54a91d02140c497edc31dc57d4bc5c85d (diff)
[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/sysv')
3 files changed, 4 insertions, 4 deletions
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index cce8b05cba5a..8c66e9270dd6 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -20,7 +20,7 @@
static int sysv_readdir(struct file *, void *, filldir_t);
-struct file_operations sysv_dir_operations = {
+const struct file_operations sysv_dir_operations = {
.read = generic_read_dir,
.readdir = sysv_readdir,
.fsync = sysv_sync_file,
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index da69abc06240..a59e303135fa 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -19,7 +19,7 @@
* We have mostly NULLs here: the current defaults are OK for
* the coh filesystem.
-struct file_operations sysv_file_operations = {
+const struct file_operations sysv_file_operations = {
.llseek = generic_file_llseek,
.read = generic_file_read,
.write = generic_file_write,
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index b7f9b4a42aab..393a480e4deb 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -159,8 +159,8 @@ extern ino_t sysv_inode_by_name(struct dentry *);
extern struct inode_operations sysv_file_inode_operations;
extern struct inode_operations sysv_dir_inode_operations;
extern struct inode_operations sysv_fast_symlink_inode_operations;
-extern struct file_operations sysv_file_operations;
-extern struct file_operations sysv_dir_operations;
+extern const struct file_operations sysv_file_operations;
+extern const struct file_operations sysv_dir_operations;
extern struct address_space_operations sysv_aops;
extern struct super_operations sysv_sops;
extern struct dentry_operations sysv_dentry_operations;