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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 00:55:38 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:46 -0800
commit754661f143e70d66eae6c48532ca245aa05dec0e (patch)
treec3ed0f7f96061931e497ed92d2b21294756b4831 /fs/ext4
parent9c2e08c592cd357a8330c34def1e8ecfdcf53275 (diff)
downloadop-kernel-dev-754661f143e70d66eae6c48532ca245aa05dec0e.zip
op-kernel-dev-754661f143e70d66eae6c48532ca245aa05dec0e.tar.gz
[PATCH] mark struct inode_operations const 1
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>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/file.c2
-rw-r--r--fs/ext4/namei.c4
-rw-r--r--fs/ext4/symlink.c4
3 files changed, 5 insertions, 5 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3bbc24b..3c6c1fd 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -125,7 +125,7 @@ const struct file_operations ext4_file_operations = {
.splice_write = generic_file_splice_write,
};
-struct inode_operations ext4_file_inode_operations = {
+const struct inode_operations ext4_file_inode_operations = {
.truncate = ext4_truncate,
.setattr = ext4_setattr,
#ifdef CONFIG_EXT4DEV_FS_XATTR
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 34b3448..e7e1d79 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2363,7 +2363,7 @@ end_rename:
/*
* directories can handle most operations...
*/
-struct inode_operations ext4_dir_inode_operations = {
+const struct inode_operations ext4_dir_inode_operations = {
.create = ext4_create,
.lookup = ext4_lookup,
.link = ext4_link,
@@ -2383,7 +2383,7 @@ struct inode_operations ext4_dir_inode_operations = {
.permission = ext4_permission,
};
-struct inode_operations ext4_special_inode_operations = {
+const struct inode_operations ext4_special_inode_operations = {
.setattr = ext4_setattr,
#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index fcf5272..e6f9da4 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -30,7 +30,7 @@ static void * ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
-struct inode_operations ext4_symlink_inode_operations = {
+const struct inode_operations ext4_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
@@ -42,7 +42,7 @@ struct inode_operations ext4_symlink_inode_operations = {
#endif
};
-struct inode_operations ext4_fast_symlink_inode_operations = {
+const struct inode_operations ext4_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = ext4_follow_link,
#ifdef CONFIG_EXT4DEV_FS_XATTR
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