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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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4
fs/autofs/autofs_i.h
View file

@ -142,8 +142,8 @@ struct autofs_dir_ent *autofs_expire(struct super_block *,struct autofs_sb_info
/* Operations structures */
extern struct inode_operations autofs_root_inode_operations;
extern struct inode_operations autofs_symlink_inode_operations;
extern const struct inode_operations autofs_root_inode_operations;
extern const struct inode_operations autofs_symlink_inode_operations;
extern const struct file_operations autofs_root_operations;
/* Initializing function */

2
fs/autofs/root.c
View file

@ -32,7 +32,7 @@ const struct file_operations autofs_root_operations = {
.ioctl = autofs_root_ioctl,
};
struct inode_operations autofs_root_inode_operations = {
const struct inode_operations autofs_root_inode_operations = {
.lookup = autofs_root_lookup,
.unlink = autofs_root_unlink,
.symlink = autofs_root_symlink,

2
fs/autofs/symlink.c
View file

@ -20,7 +20,7 @@ static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
struct inode_operations autofs_symlink_inode_operations = {
const struct inode_operations autofs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = autofs_follow_link
};