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[PATCH] mark struct inode_operations const 3

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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 00:55:40 -08:00 • committed by Linus Torvalds
commit c5ef1c42c5
48 changed files with 103 additions and 103 deletions
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2
fs/sysv/file.c
View file

@ -30,7 +30,7 @@ const struct file_operations sysv_file_operations = {
.sendfile = generic_file_sendfile,
};
struct inode_operations sysv_file_inode_operations = {
const struct inode_operations sysv_file_inode_operations = {
.truncate = sysv_truncate,
.getattr = sysv_getattr,
};

2
fs/sysv/inode.c
View file

@ -142,7 +142,7 @@ static inline void write3byte(struct sysv_sb_info *sbi,
}
}
static struct inode_operations sysv_symlink_inode_operations = {
static const struct inode_operations sysv_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,

2
fs/sysv/namei.c
View file

@ -292,7 +292,7 @@ out:
/*
* directories can handle most operations...
*/
struct inode_operations sysv_dir_inode_operations = {
const struct inode_operations sysv_dir_inode_operations = {
.create = sysv_create,
.lookup = sysv_lookup,
.link = sysv_link,

2
fs/sysv/symlink.c
View file

@ -14,7 +14,7 @@ static void *sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
struct inode_operations sysv_fast_symlink_inode_operations = {
const struct inode_operations sysv_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = sysv_follow_link,
};

6
fs/sysv/sysv.h
View file

@ -159,9 +159,9 @@ extern struct sysv_dir_entry *sysv_dotdot(struct inode *, struct page **);
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 const struct inode_operations sysv_file_inode_operations;
extern const struct inode_operations sysv_dir_inode_operations;
extern const struct inode_operations sysv_fast_symlink_inode_operations;
extern const struct file_operations sysv_file_operations;
extern const struct file_operations sysv_dir_operations;
extern const struct address_space_operations sysv_aops;