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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:58 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:29 +1100
commitb74c79e99389cd79b31fcc08f82c24e492e63c7e (patch)
tree763c6b412517306670bc625e90035f2d16bb739f /fs/btrfs/acl.c
parent34286d6662308d82aed891852d04c7c3a2649b16 (diff)
downloadop-kernel-dev-b74c79e99389cd79b31fcc08f82c24e492e63c7e.zip
op-kernel-dev-b74c79e99389cd79b31fcc08f82c24e492e63c7e.tar.gz
fs: provide rcu-walk aware permission i_ops
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/btrfs/acl.c')
-rw-r--r--fs/btrfs/acl.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 2222d16..cb518a4 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -185,13 +185,15 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
return ret;
}
-int btrfs_check_acl(struct inode *inode, int mask)
+int btrfs_check_acl(struct inode *inode, int mask, unsigned int flags)
{
struct posix_acl *acl;
int error = -EAGAIN;
- acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
+ if (flags & IPERM_FLAG_RCU)
+ return -ECHILD;
+ acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) {
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