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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/hpfs
parent99ac48f54a91d02140c497edc31dc57d4bc5c85d (diff)
downloadop-kernel-dev-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.zip
op-kernel-dev-4b6f5d20b04dcbc3d888555522b90ba6d36c4106.tar.gz
[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/hpfs')
-rw-r--r--fs/hpfs/dir.c2
-rw-r--r--fs/hpfs/file.c2
-rw-r--r--fs/hpfs/hpfs_fn.h4
3 files changed, 4 insertions, 4 deletions
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 5591f96..ecc9180 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -310,7 +310,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name
return ERR_PTR(-ENOENT);
}
-struct file_operations hpfs_dir_ops =
+const struct file_operations hpfs_dir_ops =
{
.llseek = hpfs_dir_lseek,
.read = generic_read_dir,
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 7c995ac..d3b9fff 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -119,7 +119,7 @@ static ssize_t hpfs_file_write(struct file *file, const char __user *buf,
return retval;
}
-struct file_operations hpfs_file_ops =
+const struct file_operations hpfs_file_ops =
{
.llseek = generic_file_llseek,
.read = generic_file_read,
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 4c6473a..29b7a3e 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -240,7 +240,7 @@ void hpfs_set_dentry_operations(struct dentry *);
/* dir.c */
struct dentry *hpfs_lookup(struct inode *, struct dentry *, struct nameidata *);
-extern struct file_operations hpfs_dir_ops;
+extern const struct file_operations hpfs_dir_ops;
/* dnode.c */
@@ -266,7 +266,7 @@ void hpfs_set_ea(struct inode *, struct fnode *, char *, char *, int);
/* file.c */
int hpfs_file_fsync(struct file *, struct dentry *, int);
-extern struct file_operations hpfs_file_ops;
+extern const struct file_operations hpfs_file_ops;
extern struct inode_operations hpfs_file_iops;
extern struct address_space_operations hpfs_aops;
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