---

yaml --- r: 361354 b: refs/heads/master c: bc17862 h: refs/heads/master v: v3
git-mirror · Mar 14, 2013 · a5a3e88 · a5a3e88
1 parent a5a44e3
commit a5a3e88
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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: d340d2475c6e394013325f83f499594628a9e558
+refs/heads/master: bc178622d40d87e75abc131007342429c9b03351
diff --git a/trunk/fs/btrfs/volumes.c b/trunk/fs/btrfs/volumes.c
@@ -684,6 +684,12 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
 		__btrfs_close_devices(fs_devices);
 		free_fs_devices(fs_devices);
 	}
+	/*
+	 * Wait for rcu kworkers under __btrfs_close_devices
+	 * to finish all blkdev_puts so device is really
+	 * free when umount is done.
+	 */
+	rcu_barrier();
 	return ret;
 }