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

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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>
This commit is contained in:
Arjan van de Ven
2006-03-28 01:56:42 -08:00
committed by Linus Torvalds
parent 99ac48f54a
commit 4b6f5d20b0
139 changed files with 225 additions and 225 deletions
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2
fs/sysv/dir.c
View File

@@ -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,

2
fs/sysv/file.c
View File

@@ -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,

4
fs/sysv/sysv.h
View File

@@ -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;