commit b74c79e99389cd79b31fcc08f82c24e492e63c7e
author Nick Piggin <npiggin@kernel.dk> Fri Jan 07 17:49:58 2011 +1100
committer Nick Piggin <npiggin@kernel.dk> Fri Jan 07 17:50:29 2011 +1100
tree 763c6b412517306670bc625e90035f2d16bb739f
parent 34286d6662308d82aed891852d04c7c3a2649b16

fs: provide rcu-walk aware permission i_ops

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

fs/gfs2/acl.c

diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 48171f4..7118f1a 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -75,11 +75,14 @@
  * Returns: errno
  */
 
-int gfs2_check_acl(struct inode *inode, int mask)
+int gfs2_check_acl(struct inode *inode, int mask, unsigned int flags)
 {
 	struct posix_acl *acl;
 	int error;
 
+	if (flags & IPERM_FLAG_RCU)
+		return -ECHILD;
+
 	acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
 	if (IS_ERR(acl))
 		return PTR_ERR(acl);