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[PATCH] mark struct inode_operations const 1

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Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

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 2007-02-12 00:55:38 -08:00 • committed by Linus Torvalds
commit 754661f143
57 changed files with 100 additions and 100 deletions
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6
fs/affs/affs.h
View file

@ -188,9 +188,9 @@ extern void affs_dir_truncate(struct inode *);
/* jump tables */
extern struct inode_operations affs_file_inode_operations;
extern struct inode_operations affs_dir_inode_operations;
extern struct inode_operations affs_symlink_inode_operations;
extern const struct inode_operations affs_file_inode_operations;
extern const struct inode_operations affs_dir_inode_operations;
extern const struct inode_operations affs_symlink_inode_operations;
extern const struct file_operations affs_file_operations;
extern const struct file_operations affs_file_operations_ofs;
extern const struct file_operations affs_dir_operations;

2
fs/affs/dir.c
View file

@ -26,7 +26,7 @@ const struct file_operations affs_dir_operations = {
/*
* directories can handle most operations...
*/
struct inode_operations affs_dir_inode_operations = {
const struct inode_operations affs_dir_inode_operations = {
.create = affs_create,
.lookup = affs_lookup,
.link = affs_link,

2
fs/affs/file.c
View file

@ -38,7 +38,7 @@ const struct file_operations affs_file_operations = {
.sendfile = generic_file_sendfile,
};
struct inode_operations affs_file_inode_operations = {
const struct inode_operations affs_file_inode_operations = {
.truncate = affs_truncate,
.setattr = affs_notify_change,
};

2
fs/affs/inode.c
View file

@ -12,7 +12,7 @@
#include "affs.h"
extern struct inode_operations affs_symlink_inode_operations;
extern const struct inode_operations affs_symlink_inode_operations;
extern struct timezone sys_tz;
void

2
fs/affs/symlink.c
View file

@ -70,7 +70,7 @@ const struct address_space_operations affs_symlink_aops = {
.readpage = affs_symlink_readpage,
};
struct inode_operations affs_symlink_inode_operations = {
const struct inode_operations affs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,