From patchwork Thu Apr 22 12:20:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lei X-Patchwork-Id: 12218371 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=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 A6992C433ED for ; Thu, 22 Apr 2021 12:22:32 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 090E061139 for ; Thu, 22 Apr 2021 12:22:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 090E061139 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1619094150; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=gOnn2mMBm68Fp1poow9O4LVoF3zBSRpwErUtiEYTyuo=; b=BqHNHDZsSpK+tFRdGPpmA9bcFb3sNJLE7L4qDQz3jtq/iINbchq0yWlPusi6fLVY4zl4uY yowX994weBajZp8YzlkJ+AZjFsPpsoE+duHa50mybpDWQgVXPFzDRLIHThBLVBf3u8e852 mA4snOVcnIrePT2Lr9OokzOPCrtjRvU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-459-P8qnDW6JOC6tjEJZxwJSUA-1; Thu, 22 Apr 2021 08:21:51 -0400 X-MC-Unique: P8qnDW6JOC6tjEJZxwJSUA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EF26B107ACED; Thu, 22 Apr 2021 12:21:45 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D44C260939; Thu, 22 Apr 2021 12:21:45 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id A4A8E44A58; Thu, 22 Apr 2021 12:21:45 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 13MCLi67020623 for ; Thu, 22 Apr 2021 08:21:44 -0400 Received: by smtp.corp.redhat.com (Postfix) id 73AA460BE5; Thu, 22 Apr 2021 12:21:44 +0000 (UTC) Received: from localhost (ovpn-13-243.pek2.redhat.com [10.72.13.243]) by smtp.corp.redhat.com (Postfix) with ESMTP id D6EF660C05; Thu, 22 Apr 2021 12:21:36 +0000 (UTC) From: Ming Lei To: Jens Axboe Date: Thu, 22 Apr 2021 20:20:31 +0800 Message-Id: <20210422122038.2192933-6-ming.lei@redhat.com> In-Reply-To: <20210422122038.2192933-1-ming.lei@redhat.com> References: <20210422122038.2192933-1-ming.lei@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: dm-devel@redhat.com Cc: Mike Snitzer , Ming Lei , linux-block@vger.kernel.org, dm-devel@redhat.com, Jeffle Xu , Christoph Hellwig Subject: [dm-devel] [PATCH V6 05/12] block: extract one helper function polling hw queue X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com From: Jeffle Xu Extract the logic of polling a hw queue and related statistics handling out as the helper function. Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Jeffle Xu Signed-off-by: Ming Lei --- block/blk-poll.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/block/blk-poll.c b/block/blk-poll.c index daa307f84792..0a38c25bcee5 100644 --- a/block/blk-poll.c +++ b/block/blk-poll.c @@ -129,6 +129,19 @@ static bool blk_mq_poll_hybrid(struct request_queue *q, return blk_mq_poll_hybrid_sleep(q, rq); } +static inline int blk_mq_poll_hctx(struct request_queue *q, + struct blk_mq_hw_ctx *hctx) +{ + int ret; + + hctx->poll_invoked++; + ret = q->mq_ops->poll(hctx); + if (ret > 0) + hctx->poll_success++; + + return ret; +} + /** * blk_poll - poll for IO completions * @q: the queue @@ -171,11 +184,8 @@ int blk_poll(struct request_queue *q, blk_qc_t cookie, bool spin) do { int ret; - hctx->poll_invoked++; - - ret = q->mq_ops->poll(hctx); + ret = blk_mq_poll_hctx(q, hctx); if (ret > 0) { - hctx->poll_success++; __set_current_state(TASK_RUNNING); return ret; }