* [patch]blk-mq: add REQ_SYNC early
@ 2014-02-19 12:20 Shaohua Li
0 siblings, 0 replies; only message in thread
From: Shaohua Li @ 2014-02-19 12:20 UTC (permalink / raw)
To: linux-kernel; +Cc: axboe
Add REQ_SYNC early, so rq_dispatched[] in blk_mq_rq_ctx_init is set correctly.
Signed-off-by: Shaohua Li<shli@fusionio.com>
---
block/blk-mq.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux/block/blk-mq.c
===================================================================
--- linux.orig/block/blk-mq.c 2014-02-19 17:10:02.000000000 +0800
+++ linux/block/blk-mq.c 2014-02-19 18:51:25.082774359 +0800
@@ -926,6 +926,8 @@ static void blk_mq_make_request(struct r
ctx = blk_mq_get_ctx(q);
hctx = q->mq_ops->map_queue(q, ctx->cpu);
+ if (is_sync)
+ rw |= REQ_SYNC;
trace_block_getrq(q, bio, rw);
rq = __blk_mq_alloc_request(hctx, GFP_ATOMIC, false);
if (likely(rq))
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