From patchwork Fri Sep 24 08:28:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 12514441 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFAE2C433FE for ; Fri, 24 Sep 2021 08:33:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A1EB610D1 for ; Fri, 24 Sep 2021 08:33:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244820AbhIXIfQ (ORCPT ); Fri, 24 Sep 2021 04:35:16 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]:3858 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244797AbhIXIfN (ORCPT ); Fri, 24 Sep 2021 04:35:13 -0400 Received: from fraeml734-chm.china.huawei.com (unknown [172.18.147.206]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4HG4x32MSfz6H6kb; Fri, 24 Sep 2021 16:30:47 +0800 (CST) Received: from lhreml724-chm.china.huawei.com (10.201.108.75) by fraeml734-chm.china.huawei.com (10.206.15.215) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Fri, 24 Sep 2021 10:33:39 +0200 Received: from localhost.localdomain (10.69.192.58) by lhreml724-chm.china.huawei.com (10.201.108.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Fri, 24 Sep 2021 09:33:36 +0100 From: John Garry To: CC: , , , , , "John Garry" Subject: [PATCH v4 04/13] blk-mq: Invert check in blk_mq_update_nr_requests() Date: Fri, 24 Sep 2021 16:28:21 +0800 Message-ID: <1632472110-244938-5-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1632472110-244938-1-git-send-email-john.garry@huawei.com> References: <1632472110-244938-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org It's easier to read: if (x) X; else Y; over: if (!x) Y; else X; No functional change intended. Signed-off-by: John Garry Reviewed-by: Ming Lei Reviewed-by: Hannes Reinecke --- block/blk-mq.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 1a4bb2db30e5..47d6ab725bcc 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -3613,18 +3613,18 @@ int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr) * If we're using an MQ scheduler, just update the scheduler * queue depth. This is similar to what the old code would do. */ - if (!hctx->sched_tags) { - ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr, - false); - } else { + if (hctx->sched_tags) { ret = blk_mq_tag_update_depth(hctx, &hctx->sched_tags, - nr, true); + nr, true); if (blk_mq_is_sbitmap_shared(set->flags)) { hctx->sched_tags->bitmap_tags = &q->sched_bitmap_tags; hctx->sched_tags->breserved_tags = &q->sched_breserved_tags; } + } else { + ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr, + false); } if (ret) break;