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authorArjan van de Ven <arjan@infradead.org>2006-03-28 11:56:42 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 19:16:06 +0200
commit4b6f5d20b04dcbc3d888555522b90ba6d36c4106 (patch)
tree420f271eaef7d3def7d4433b151c3cb6d7a54770 /fs/autofs4
parent[PATCH] mark f_ops const in the inode (diff)
downloadlinux-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.tar.xz
linux-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.zip
[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/autofs4')
-rw-r--r--fs/autofs4/autofs_i.h4
-rw-r--r--fs/autofs4/root.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index c70204a61268..57c4903614e5 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -176,8 +176,8 @@ extern struct inode_operations autofs4_dir_inode_operations;
extern struct inode_operations autofs4_root_inode_operations;
extern struct inode_operations autofs4_indirect_root_inode_operations;
extern struct inode_operations autofs4_direct_root_inode_operations;
-extern struct file_operations autofs4_dir_operations;
-extern struct file_operations autofs4_root_operations;
+extern const struct file_operations autofs4_dir_operations;
+extern const struct file_operations autofs4_root_operations;
/* Initializing function */
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index c8fe43a475e2..84e030c8ddd0 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -32,7 +32,7 @@ static int autofs4_root_readdir(struct file * filp, void * dirent, filldir_t fil
static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *);
static void *autofs4_follow_link(struct dentry *, struct nameidata *);
-struct file_operations autofs4_root_operations = {
+const struct file_operations autofs4_root_operations = {
.open = dcache_dir_open,
.release = dcache_dir_close,
.read = generic_read_dir,
@@ -40,7 +40,7 @@ struct file_operations autofs4_root_operations = {
.ioctl = autofs4_root_ioctl,
};
-struct file_operations autofs4_dir_operations = {
+const struct file_operations autofs4_dir_operations = {
.open = autofs4_dir_open,
.release = autofs4_dir_close,
.read = generic_read_dir,