From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756358AbaICUdr (ORCPT ); Wed, 3 Sep 2014 16:33:47 -0400 Received: from 6.77.broadband6.iol.cz ([88.101.77.6]:41600 "EHLO dhcp-27-160.brq.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756327AbaICUdp (ORCPT ); Wed, 3 Sep 2014 16:33:45 -0400 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Jens Axboe Subject: [PATCH 2/3] blk-mq: Eliminate superfluous check of BLK_MQ_S_TAG_ACTIVE flag Date: Wed, 3 Sep 2014 22:33:06 +0200 Message-Id: <871ad1488e7050fa53412b891bf3d0a46dea8bcd.1409775956.git.agordeev@redhat.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Alexander Gordeev Cc: Jens Axboe --- block/blk-mq-tag.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 4953b64..d1eb579 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -60,8 +60,7 @@ static inline void bt_index_atomic_inc(atomic_t *index) */ void __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx) { - if (!test_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state) && - !test_and_set_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state)) + if (!test_and_set_bit(BLK_MQ_S_TAG_ACTIVE, &hctx->state)) atomic_inc(&hctx->tags->active_queues); } -- 1.9.3