From: Christoph Hellwig <hch@lst.de>
Date: Mon, 14 Apr 2014 08:30:06 +0000 (+0200)
Subject: blk-mq: initialize resid_len
X-Git-Tag: firefly_0821_release~176^2~3465^2~50^2~73
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=742ee69b92d9559e968f70cf0a49157866f8fbef;p=firefly-linux-kernel-4.4.55.git

blk-mq: initialize resid_len

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 5455ed19de1c..658428a28faf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -353,6 +353,8 @@ static void blk_mq_start_request(struct request *rq, bool last)
 
 	trace_block_rq_issue(q, rq);
 
+	rq->resid_len = blk_rq_bytes(rq);
+
 	/*
 	 * Just mark start time and set the started bit. Due to memory
 	 * ordering, we know we'll see the correct deadline as long as