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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 <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 00:55:38 -08:00
committed by Linus Torvalds
parent 9c2e08c592
commit 754661f143
57 changed files with 100 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/ext2/ext2.h
+5 -5
View File
@@ -158,7 +158,7 @@ extern void ext2_write_super (struct super_block *);
extern const struct file_operations ext2_dir_operations;
/* file.c */
extern struct inode_operations ext2_file_inode_operations;
extern const struct inode_operations ext2_file_inode_operations;
extern const struct file_operations ext2_file_operations;
extern const struct file_operations ext2_xip_file_operations;
@@ -168,9 +168,9 @@ extern const struct address_space_operations ext2_aops_xip;
extern const struct address_space_operations ext2_nobh_aops;
/* namei.c */
extern struct inode_operations ext2_dir_inode_operations;
extern struct inode_operations ext2_special_inode_operations;
extern const struct inode_operations ext2_dir_inode_operations;
extern const struct inode_operations ext2_special_inode_operations;
/* symlink.c */
extern struct inode_operations ext2_fast_symlink_inode_operations;
extern struct inode_operations ext2_symlink_inode_operations;
extern const struct inode_operations ext2_fast_symlink_inode_operations;
extern const struct inode_operations ext2_symlink_inode_operations;
fs/ext2/file.c
+1 -1
View File
@@ -75,7 +75,7 @@ const struct file_operations ext2_xip_file_operations = {
};
#endif
struct inode_operations ext2_file_inode_operations = {
const struct inode_operations ext2_file_inode_operations = {
.truncate = ext2_truncate,
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
fs/ext2/namei.c
+2 -2
View File
@@ -373,7 +373,7 @@ out:
return err;
}
struct inode_operations ext2_dir_inode_operations = {
const struct inode_operations ext2_dir_inode_operations = {
.create = ext2_create,
.lookup = ext2_lookup,
.link = ext2_link,
@@ -393,7 +393,7 @@ struct inode_operations ext2_dir_inode_operations = {
.permission = ext2_permission,
};
struct inode_operations ext2_special_inode_operations = {
const struct inode_operations ext2_special_inode_operations = {
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
fs/ext2/symlink.c
+2 -2
View File
@@ -28,7 +28,7 @@ static void *ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
struct inode_operations ext2_symlink_inode_operations = {
const struct inode_operations ext2_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
@@ -40,7 +40,7 @@ struct inode_operations ext2_symlink_inode_operations = {
#endif
};
struct inode_operations ext2_fast_symlink_inode_operations = {
const struct inode_operations ext2_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = ext2_follow_link,
#ifdef CONFIG_EXT2_FS_XATTR