From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752493AbaIGIj4 (ORCPT ); Sun, 7 Sep 2014 04:39:56 -0400 Received: from mail-pd0-f181.google.com ([209.85.192.181]:63350 "EHLO mail-pd0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752400AbaIGIjx (ORCPT ); Sun, 7 Sep 2014 04:39:53 -0400 From: Ming Lei To: Jens Axboe , linux-kernel@vger.kernel.org Cc: linux-scsi@vger.kernel.org, Christoph Hellwig , Ming Lei Subject: [PATCH 6/6] blk-mq: don't copy pdu any more for flush req Date: Sun, 7 Sep 2014 16:39:22 +0800 Message-Id: <1410079162-9872-7-git-send-email-ming.lei@canonical.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1410079162-9872-1-git-send-email-ming.lei@canonical.com> References: <1410079162-9872-1-git-send-email-ming.lei@canonical.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The in-tree drivers which need to handle flush request have implemented init_flush_rq already, so don't copy pdu any more for flush req. Signed-off-by: Ming Lei --- block/blk-mq.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 113d58d..16f595f 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -287,15 +287,8 @@ void blk_mq_free_request(struct request *rq) void blk_mq_clone_flush_request(struct request *flush_rq, struct request *orig_rq) { - struct blk_mq_hw_ctx *hctx = - orig_rq->q->mq_ops->map_queue(orig_rq->q, orig_rq->mq_ctx->cpu); - flush_rq->mq_ctx = orig_rq->mq_ctx; flush_rq->tag = orig_rq->tag; - - if (!orig_rq->q->mq_ops->init_flush_rq) - memcpy(blk_mq_rq_to_pdu(flush_rq), - blk_mq_rq_to_pdu(orig_rq), hctx->cmd_size); } inline void __blk_mq_end_io(struct request *rq, int error) -- 1.7.9.5