From 3da5ab56482f322a9736c484db8773899c5c731b Mon Sep 17 00:00:00 2001
From: Forrest Liu <forrestl@synology.com>
Date: Fri, 30 Jan 2015 19:42:12 +0800
Subject: [PATCH] Btrfs: add missing blk_finish_plug in btrfs_sync_log()

Add missing blk_finish_plug in btrfs_sync_log()

Signed-off-by: Forrest Liu <forrestl@synology.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
---
 fs/btrfs/tree-log.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9a02da16f2be..1a9585d4380a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2591,6 +2591,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 	}
 
 	if (log_root_tree->log_transid_committed >= root_log_ctx.log_transid) {
+		blk_finish_plug(&plug);
 		mutex_unlock(&log_root_tree->log_mutex);
 		ret = root_log_ctx.log_ret;
 		goto out;