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Diffstat (limited to 'fs/ext3/acl.c')
-rw-r--r--fs/ext3/acl.c85
1 files changed, 19 insertions, 66 deletions
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index e0c74545171..e167bae37ef 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -126,33 +126,6 @@ fail:
return ERR_PTR(-EINVAL);
}
-static inline struct posix_acl *
-ext3_iget_acl(struct inode *inode, struct posix_acl **i_acl)
-{
- struct posix_acl *acl = ACCESS_ONCE(*i_acl);
-
- if (acl) {
- spin_lock(&inode->i_lock);
- acl = *i_acl;
- if (acl != EXT3_ACL_NOT_CACHED)
- acl = posix_acl_dup(acl);
- spin_unlock(&inode->i_lock);
- }
-
- return acl;
-}
-
-static inline void
-ext3_iset_acl(struct inode *inode, struct posix_acl **i_acl,
- struct posix_acl *acl)
-{
- spin_lock(&inode->i_lock);
- if (*i_acl != EXT3_ACL_NOT_CACHED)
- posix_acl_release(*i_acl);
- *i_acl = posix_acl_dup(acl);
- spin_unlock(&inode->i_lock);
-}
-
/*
* Inode operation get_posix_acl().
*
@@ -161,7 +134,6 @@ ext3_iset_acl(struct inode *inode, struct posix_acl **i_acl,
static struct posix_acl *
ext3_get_acl(struct inode *inode, int type)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
int name_index;
char *value = NULL;
struct posix_acl *acl;
@@ -170,24 +142,21 @@ ext3_get_acl(struct inode *inode, int type)
if (!test_opt(inode->i_sb, POSIX_ACL))
return NULL;
- switch(type) {
- case ACL_TYPE_ACCESS:
- acl = ext3_iget_acl(inode, &ei->i_acl);
- if (acl != EXT3_ACL_NOT_CACHED)
- return acl;
- name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
- break;
-
- case ACL_TYPE_DEFAULT:
- acl = ext3_iget_acl(inode, &ei->i_default_acl);
- if (acl != EXT3_ACL_NOT_CACHED)
- return acl;
- name_index = EXT3_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 = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ break;
+ default:
+ BUG();
}
+
retval = ext3_xattr_get(inode, name_index, "", NULL, 0);
if (retval > 0) {
value = kmalloc(retval, GFP_NOFS);
@@ -203,17 +172,9 @@ ext3_get_acl(struct inode *inode, int type)
acl = ERR_PTR(retval);
kfree(value);
- if (!IS_ERR(acl)) {
- switch(type) {
- case ACL_TYPE_ACCESS:
- ext3_iset_acl(inode, &ei->i_acl, acl);
- break;
+ if (!IS_ERR(acl))
+ set_cached_acl(inode, type, acl);
- case ACL_TYPE_DEFAULT:
- ext3_iset_acl(inode, &ei->i_default_acl, acl);
- break;
- }
- }
return acl;
}
@@ -226,7 +187,6 @@ static int
ext3_set_acl(handle_t *handle, struct inode *inode, int type,
struct posix_acl *acl)
{
- struct ext3_inode_info *ei = EXT3_I(inode);
int name_index;
void *value = NULL;
size_t size = 0;
@@ -271,17 +231,10 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
value, size, 0);
kfree(value);
- if (!error) {
- switch(type) {
- case ACL_TYPE_ACCESS:
- ext3_iset_acl(inode, &ei->i_acl, acl);
- break;
- case ACL_TYPE_DEFAULT:
- ext3_iset_acl(inode, &ei->i_default_acl, acl);
- break;
- }
- }
+ if (!error)
+ set_cached_acl(inode, type, acl);
+
return error;
}