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authorAl Viro <viro@zeniv.linux.org.uk>2009-06-09 20:11:54 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-24 16:17:07 +0400
commit073aaa1b142461d91f83da66db1184d7c1b1edea (patch)
tree2b54d185d78f1229418fca521a93e6b55c57248b /fs/ext2
parent06b16e9f68edaa1e71aee943d3c030bcf7380af1 (diff)
downloadlinux-073aaa1b142461d91f83da66db1184d7c1b1edea.tar.xz
helpers for acl caching + switch to those
helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl), forget_cached_acl(inode, type). ubifs/xattr.c needed includes reordered, the rest is a plain switchover. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ext2')
-rw-r--r--fs/ext2/acl.c79
1 files changed, 17 insertions, 62 deletions
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index d2ffddc12117..d636e1297cad 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -125,30 +125,6 @@ fail:
return ERR_PTR(-EINVAL);
}
-static inline struct posix_acl *
-ext2_iget_acl(struct inode *inode, struct posix_acl **i_acl)
-{
- struct posix_acl *acl = ACL_NOT_CACHED;
-
- spin_lock(&inode->i_lock);
- if (*i_acl != ACL_NOT_CACHED)
- acl = posix_acl_dup(*i_acl);
- spin_unlock(&inode->i_lock);
-
- return acl;
-}
-
-static inline void
-ext2_iset_acl(struct inode *inode, struct posix_acl **i_acl,
- struct posix_acl *acl)
-{
- spin_lock(&inode->i_lock);
- if (*i_acl != ACL_NOT_CACHED)
- posix_acl_release(*i_acl);
- *i_acl = posix_acl_dup(acl);
- spin_unlock(&inode->i_lock);
-}
-
/*
* inode->i_mutex: don't care
*/
@@ -163,23 +139,19 @@ ext2_get_acl(struct inode *inode, int type)
if (!test_opt(inode->i_sb, POSIX_ACL))
return NULL;
- switch(type) {
- case ACL_TYPE_ACCESS:
- acl = ext2_iget_acl(inode, &inode->i_acl);
- if (acl != ACL_NOT_CACHED)
- return acl;
- name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
- break;
-
- case ACL_TYPE_DEFAULT:
- acl = ext2_iget_acl(inode, &inode->i_default_acl);
- if (acl != ACL_NOT_CACHED)
- return acl;
- name_index = EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT;
- break;
-
- default:
- return ERR_PTR(-EINVAL);
+ acl = get_cached_acl(inode, type);
+ if (acl != ACL_NOT_CACHED)
+ return acl;
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name_index = EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ break;
+ default:
+ BUG();
}
retval = ext2_xattr_get(inode, name_index, "", NULL, 0);
if (retval > 0) {
@@ -196,17 +168,9 @@ ext2_get_acl(struct inode *inode, int type)
acl = ERR_PTR(retval);
kfree(value);
- if (!IS_ERR(acl)) {
- switch(type) {
- case ACL_TYPE_ACCESS:
- ext2_iset_acl(inode, &inode->i_acl, acl);
- break;
+ if (!IS_ERR(acl))
+ set_cached_acl(inode, type, acl);
- case ACL_TYPE_DEFAULT:
- ext2_iset_acl(inode, &inode->i_default_acl, acl);
- break;
- }
- }
return acl;
}
@@ -261,17 +225,8 @@ ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
error = ext2_xattr_set(inode, name_index, "", value, size, 0);
kfree(value);
- if (!error) {
- switch(type) {
- case ACL_TYPE_ACCESS:
- ext2_iset_acl(inode, &inode->i_acl, acl);
- break;
-
- case ACL_TYPE_DEFAULT:
- ext2_iset_acl(inode, &inode->i_default_acl, acl);
- break;
- }
- }
+ if (!error)
+ set_cached_acl(inode, type, acl);
return error;
}