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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 <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arjan van de Ven
2007-02-12 00:55:40 -08:00
committed by Linus Torvalds
parent 92e1d5be91
commit c5ef1c42c5
48 changed files with 103 additions and 103 deletions
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2
fs/sysfs/dir.c
View File

@@ -296,7 +296,7 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(err);
}
struct inode_operations sysfs_dir_inode_operations = {
const struct inode_operations sysfs_dir_inode_operations = {
.lookup = sysfs_lookup,
.setattr = sysfs_setattr,
};

2
fs/sysfs/inode.c
View File

@@ -29,7 +29,7 @@ static struct backing_dev_info sysfs_backing_dev_info = {
.capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
};
static struct inode_operations sysfs_inode_operations ={
static const struct inode_operations sysfs_inode_operations ={
.setattr = sysfs_setattr,
};

2
fs/sysfs/symlink.c
View File

@@ -181,7 +181,7 @@ static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *co
free_page((unsigned long)page);
}
struct inode_operations sysfs_symlink_inode_operations = {
const struct inode_operations sysfs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = sysfs_follow_link,
.put_link = sysfs_put_link,

4
fs/sysfs/sysfs.h
View File

@@ -26,8 +26,8 @@ extern struct super_block * sysfs_sb;
extern const struct file_operations sysfs_dir_operations;
extern const struct file_operations sysfs_file_operations;
extern const struct file_operations bin_fops;
extern struct inode_operations sysfs_dir_inode_operations;
extern struct inode_operations sysfs_symlink_inode_operations;
extern const struct inode_operations sysfs_dir_inode_operations;
extern const struct inode_operations sysfs_symlink_inode_operations;
struct sysfs_symlink {
char * link_name;