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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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Arjan van de Ven 2006-03-28 01:56:42 -08:00 • committed by Linus Torvalds
commit 4b6f5d20b0
139 changed files with 225 additions and 225 deletions
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2
fs/minix/dir.c
View file

@ -14,7 +14,7 @@ typedef struct minix_dir_entry minix_dirent;
static int minix_readdir(struct file *, void *, filldir_t);
struct file_operations minix_dir_operations = {
const struct file_operations minix_dir_operations = {
.read = generic_read_dir,
.readdir = minix_readdir,
.fsync = minix_sync_file,

2
fs/minix/file.c
View file

@ -15,7 +15,7 @@
*/
int minix_sync_file(struct file *, struct dentry *, int);
struct file_operations minix_file_operations = {
const struct file_operations minix_file_operations = {
.llseek = generic_file_llseek,
.read = generic_file_read,
.write = generic_file_write,

4
fs/minix/minix.h
View file

@ -81,8 +81,8 @@ extern int minix_sync_file(struct file *, struct dentry *, int);
extern struct inode_operations minix_file_inode_operations;
extern struct inode_operations minix_dir_inode_operations;
extern struct file_operations minix_file_operations;
extern struct file_operations minix_dir_operations;
extern const struct file_operations minix_file_operations;
extern const struct file_operations minix_dir_operations;
extern struct dentry_operations minix_dentry_operations;
static inline struct minix_sb_info *minix_sb(struct super_block *sb)