aboutsummaryrefslogtreecommitdiff
path: root/fs/ext4/acl.c
diff options
context:
space:
mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-18 11:16:55 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-18 11:16:55 +1000
commit4b337c5f245b6587ba844ac7bb13c313a2912f7b (patch)
tree999c6a6580b76a083c8efb9dabff709d1c49fcd0 /fs/ext4/acl.c
parent492b057c426e4aa747484958e18e9da29003985d (diff)
parent3fe0344faf7fdcb158bd5c1a9aec960a8d70c8e8 (diff)
Merge commit 'origin/master' into next
Diffstat (limited to 'fs/ext4/acl.c')
-rw-r--r--fs/ext4/acl.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 647e0d65a28..605aeed96d6 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -129,12 +129,15 @@ fail:
static inline struct posix_acl *
ext4_iget_acl(struct inode *inode, struct posix_acl **i_acl)
{
- struct posix_acl *acl = EXT4_ACL_NOT_CACHED;
+ struct posix_acl *acl = ACCESS_ONCE(*i_acl);
- spin_lock(&inode->i_lock);
- if (*i_acl != EXT4_ACL_NOT_CACHED)
- acl = posix_acl_dup(*i_acl);
- spin_unlock(&inode->i_lock);
+ if (acl) {
+ spin_lock(&inode->i_lock);
+ acl = *i_acl;
+ if (acl != EXT4_ACL_NOT_CACHED)
+ acl = posix_acl_dup(acl);
+ spin_unlock(&inode->i_lock);
+ }
return acl;
}