Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security

[linux-flexiantxendom0.git] / fs / btrfs / xattr.c

diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 6196e1a..426aa46 100644 (file)
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -116,6 +116,12 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
                if (ret)
                        goto out;
                btrfs_release_path(path);
+
+               /*
+                * remove the attribute
+                */
+               if (!value)
+                       goto out;
        }
 
 again:
@@ -158,6 +164,9 @@ out:
        return ret;
 }
 
+/*
+ * @value: "" makes the attribute to empty, NULL removes it
+ */
 int __btrfs_setxattr(struct btrfs_trans_handle *trans,
                     struct inode *inode, const char *name,
                     const void *value, size_t size, int flags)