From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 20 Nov 2013 01:59:10 +0000 (-0700)
Subject: blk-mq: add blktrace insert event trace
X-Git-Tag: v3.13-rc1~30^2
X-Git-Url: http://git.cascardo.info/?a=commitdiff_plain;h=01b983c9fcfeea5774ca2df2e167b68c3c299278;p=cascardo%2Flinux.git

blk-mq: add blktrace insert event trace

We need it to make 'btt' from blktrace happy, otherwise
we are missing one state transition.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 32593dba4684..cdc629cf075b 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -721,6 +721,8 @@ static void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx,
 {
 	struct blk_mq_ctx *ctx = rq->mq_ctx;
 
+	trace_block_rq_insert(hctx->queue, rq);
+
 	list_add_tail(&rq->queuelist, &ctx->rq_list);
 	blk_mq_hctx_mark_pending(hctx, ctx);