From patchwork Wed Jan 4 14:22:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kemeng Shi X-Patchwork-Id: 13088208 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4267C4708D for ; Wed, 4 Jan 2023 06:24:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232997AbjADGYb (ORCPT ); Wed, 4 Jan 2023 01:24:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232081AbjADGYY (ORCPT ); Wed, 4 Jan 2023 01:24:24 -0500 Received: from dggsgout12.his.huawei.com (unknown [45.249.212.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C10013D67; Tue, 3 Jan 2023 22:24:23 -0800 (PST) Received: from mail02.huawei.com (unknown [172.30.67.153]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4Nn01Z27lZz4f3nG8; Wed, 4 Jan 2023 14:24:18 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.124.27]) by APP4 (Coremail) with SMTP id gCh0CgDnnbGOG7Vju3lKBA--.23788S13; Wed, 04 Jan 2023 14:24:20 +0800 (CST) From: Kemeng Shi To: axboe@kernel.dk, dwagner@suse.de, hare@suse.de, ming.lei@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Cc: hch@lst.de, john.garry@huawei.com, jack@suse.cz Subject: [PATCH v2 11/13] blk-mq: remove unncessary from_schedule parameter in blk_mq_plug_issue_direct Date: Wed, 4 Jan 2023 22:22:57 +0800 Message-Id: <20230104142259.2673013-12-shikemeng@huaweicloud.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20230104142259.2673013-1-shikemeng@huaweicloud.com> References: <20230104142259.2673013-1-shikemeng@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: gCh0CgDnnbGOG7Vju3lKBA--.23788S13 X-Coremail-Antispam: 1UD129KBjvJXoWxuryUZr1xJw17tr13XFy8uFg_yoW5AryfpF WUJa12yrWrXrZ7X3ykAanrZry3Krs3Kryagr1ft34fXrWrKw1fJw45try3ArWIyrs5Cr43 ur45W3sxJr15GwUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBSb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M280x2IEY4vEnII2IxkI6r1a6r45M2 8IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAv FVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3w A2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE 3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr2 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Gr0_Xr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1lIxAI cVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2js IEc7CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuYvjxUIL05UUUUU X-CM-SenderInfo: 5vklyvpphqwq5kxd4v5lfo033gof0z/ X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Function blk_mq_plug_issue_direct tries to issue batch requests in plug list to driver directly. We will only issue plug request to driver if we are not from scheduler, so from_scheduler parameter of blk_mq_plug_issue_direct is always false, so as the blk_mq_commit_rqs which is only called in blk_mq_plug_issue_direct. Remove unncessary from_scheduler of blk_mq_plug_issue_direct and blk_mq_commit_rqs. Signed-off-by: Kemeng Shi Reviewed-by: Christoph Hellwig --- block/blk-mq.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 882c03a3f0aa..696bd4a82b14 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2528,11 +2528,10 @@ void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx, spin_unlock(&ctx->lock); } -static void blk_mq_commit_rqs(struct blk_mq_hw_ctx *hctx, int *queued, - bool from_schedule) +static void blk_mq_commit_rqs(struct blk_mq_hw_ctx *hctx, int *queued) { if (hctx->queue->mq_ops->commit_rqs) { - trace_block_unplug(hctx->queue, *queued, !from_schedule); + trace_block_unplug(hctx->queue, *queued, true); hctx->queue->mq_ops->commit_rqs(hctx); } *queued = 0; @@ -2661,7 +2660,7 @@ static blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last) return __blk_mq_try_issue_directly(rq->mq_hctx, rq, true, last); } -static void blk_mq_plug_issue_direct(struct blk_plug *plug, bool from_schedule) +static void blk_mq_plug_issue_direct(struct blk_plug *plug) { struct blk_mq_hw_ctx *hctx = NULL; struct request *rq; @@ -2673,7 +2672,7 @@ static void blk_mq_plug_issue_direct(struct blk_plug *plug, bool from_schedule) if (hctx != rq->mq_hctx) { if (hctx) - blk_mq_commit_rqs(hctx, &queued, from_schedule); + blk_mq_commit_rqs(hctx, &queued); hctx = rq->mq_hctx; } @@ -2685,7 +2684,7 @@ static void blk_mq_plug_issue_direct(struct blk_plug *plug, bool from_schedule) case BLK_STS_RESOURCE: case BLK_STS_DEV_RESOURCE: blk_mq_request_bypass_insert(rq, false, true); - blk_mq_commit_rqs(hctx, &queued, from_schedule); + blk_mq_commit_rqs(hctx, &queued); return; default: blk_mq_end_request(rq, ret); @@ -2698,7 +2697,7 @@ static void blk_mq_plug_issue_direct(struct blk_plug *plug, bool from_schedule) * there was more coming, but that turned out to be a lie. */ if (ret != BLK_STS_OK) - blk_mq_commit_rqs(hctx, &queued, from_schedule); + blk_mq_commit_rqs(hctx, &queued); } static void __blk_mq_flush_plug_list(struct request_queue *q, @@ -2769,7 +2768,7 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule) } blk_mq_run_dispatch_ops(q, - blk_mq_plug_issue_direct(plug, false)); + blk_mq_plug_issue_direct(plug)); if (rq_list_empty(plug->mq_list)) return; }