---

yaml --- r: 287901 b: refs/heads/master c: 16780ca h: refs/heads/master i: 287899: 7e9388b v: v3
git-mirror · Feb 23, 2012 · 26f095b · 26f095b
1 parent 5e1d0c1
commit 26f095b
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a6b0d5c8dbfd428717fc4db4c36757783f391c7b
+refs/heads/master: 16780cabb877dbd0c8c5e9ff9bdebd6c5bdd1a7b
diff --git a/trunk/fs/btrfs/ioctl.c b/trunk/fs/btrfs/ioctl.c
@@ -1333,6 +1333,12 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
 		goto out;
 	}
 
+	if (name[0] == '.' &&
+	   (namelen == 1 || (name[1] == '.' && namelen == 2))) {
+		ret = -EEXIST;
+		goto out;
+	}
+
 	if (subvol) {
 		ret = btrfs_mksubvol(&file->f_path, name, namelen,
 				     NULL, transid, readonly);