From nobody Mon Feb 9 21:19:11 2026 Received: from mail-pl1-f225.google.com (mail-pl1-f225.google.com [209.85.214.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6C63C1531E3 for ; Sat, 26 Apr 2025 01:17:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.225 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745630259; cv=none; b=KE55ooZ2IpRYUHECqiTK7R0SP97nF3k0+ZBhTdQhmbiJhl8LNQXjgyFt+A2Ks2zLsZr02m/hi+jG8CN30Y1T5TUZQKcUCH95Zu8zxpqvpp5MP+Qg0T2pSEWTA/qyXoWrYNgHd5MlmXPUuvVNf1ppJomao4jh04G8ZUWQnpAO9d4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745630259; c=relaxed/simple; bh=vDrHtxaXCASrQzRkEIF0GNIz5C0/SSp+lBfDNtlXLYU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=O84YY5q2IlhvQhoaUctutURtmnNc4YUsJf8Dg9egLhzbOqZWR8Hy+vrEt5lJcir/BJur/2TCFd4Ou9XqXP6r7FOgEHo7Fp/WXn6mKHhVbpiQhz2I5AH/s78ouEkDe12EZQ2NZOF8w9xBODK8pZ8BiaGLGryptm8/Kz4juE7wyMk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com; spf=fail smtp.mailfrom=purestorage.com; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b=AAdmAtym; arc=none smtp.client-ip=209.85.214.225 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=purestorage.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b="AAdmAtym" Received: by mail-pl1-f225.google.com with SMTP id d9443c01a7336-227e29b6c55so4935045ad.1 for ; Fri, 25 Apr 2025 18:17:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=purestorage.com; s=google2022; t=1745630257; x=1746235057; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=kn7WNOBSA3+MlrBrNQ2tCaRe/xJOjXsGpS6QMvkVlSs=; b=AAdmAtymMYT6RkWIspfg4jaU79dleZrlXVaMBJa+7U4dgr5QWxWwYs8aLFjxWzlx2P 7TxumkYglU2s+i5RV519Te73tJ1uMVPgqWLZaZTIs8Gi6x/7ZIqjsdz2Y8rDP2qVu5r0 7y++kPXlXcnxCSrL1h/pxuqVnrcz4epU7NBRAFghUxIeiq5oK1jcFDsc/zVznSDD4pjl jOjnjsiTLkhuoR8RrtvzDwM4lSK8E095EDywwIWOmkGQPXMap3BYbTWdC6Q/GcpgGpqk 5rsjWLfH7bLl5zbpjKB68paz9S07n72ZzU1LGy3Zj6+IRhzRPLC7mIdOEtaZyh6tEgCz Hhkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745630257; x=1746235057; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kn7WNOBSA3+MlrBrNQ2tCaRe/xJOjXsGpS6QMvkVlSs=; b=gJIhCI+yUZKOwzA9MDkYkUDJLr67qvat72DhGWvEylwQMjE/XjWyVmbR2ZMZU2xMBd /wipLRjvxP9xdDiDlqhm9fWtEIJpn0UNs7pGnMKEk80pbdCn+kKaIn1S448aSyHeI0E4 /5s1ME4rnlTCdB7l6f/QiKJTpjg6C3lBcOOyAl/++5S3bR/ajQjkQUN5h71de+BgaVGl ndGKWlIrxGBk85IdATH0pnOoQ/5TAzXKTvvwBNMKLqrdeBxHfwKsdqbJmXs5tVcGBEzk I9DyYtUzVKmkyOHMXL5DnKIgw4sA1nDIEZWojxaWMlk3MmSJhYoCPDMHFguAEJW6JHIO 8D5A== X-Forwarded-Encrypted: i=1; AJvYcCX1LuUoBiEoL7yuAtEFT1P1CQmv+ggo/K5gzQwpe2YLpYmtD42VGpqn9pFmgiPWmbC7EepO8Fv0BF5OKxU=@vger.kernel.org X-Gm-Message-State: AOJu0YyXKjHiTEBwoUnNHS/p6hNNArF2vkbX0dGBOyhmBloCw2Tm99Ra eksapHAo9ykPiogQ1S/04dX1wKuTScu4BZlqkYd+7XuiunVUaBvcpkAdFgqdS+qcEM62FdA7Um0 7C0Dskp9iD0vOUCWogI4myIbxAgoaZy0w X-Gm-Gg: ASbGnctkgFmUD7RRcyWmg4Dl3jta+Si0sMd3fhCAMGAfT9g36/34tSq493+hFodIGbx Kw0gr94so/bbGZVe1iULhke4H562RtzM93+Sw6zF9ego1YqYmT5FMUFr2uB+oVfoCFOqT+cCoGA 7NAq7Z8yrsIO2NaEyXa5GfEUg1jWN+CENm0OpDOCYAwzH04odUuQ5VysPO3MUS6DS+SvXmz+tpj b10iJ7ieLkrtgVaXZKGYhla5GDp81Ub847amCI4lyEB/B3JEFs7rEnF/UidGu8UCJlHZnr5GVJs lCcVyFxlbuQZTMkMXTQ4/5sfxun9t9PmVu1uwaj2FGGP X-Google-Smtp-Source: AGHT+IGF8OjXCTgKiDS6URxBaFTTypnMe621FigXusTuihJwufzzZI1acv3nPcxmOKS5nrg/1xh6Agf7y3VF X-Received: by 2002:a17:902:dac2:b0:21f:356:758f with SMTP id d9443c01a7336-22dbf5df830mr24444435ad.3.1745630256635; Fri, 25 Apr 2025 18:17:36 -0700 (PDT) Received: from c7-smtp-2023.dev.purestorage.com ([208.88.159.129]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-22db4df11b8sm2187395ad.49.2025.04.25.18.17.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 18:17:36 -0700 (PDT) X-Relaying-Domain: purestorage.com Received: from dev-csander.dev.purestorage.com (dev-csander.dev.purestorage.com [10.7.70.37]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id 0B056340572; Fri, 25 Apr 2025 19:17:36 -0600 (MDT) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id AA6C4E41BE9; Fri, 25 Apr 2025 19:17:35 -0600 (MDT) From: Caleb Sander Mateos To: Jens Axboe Cc: Christoph Hellwig , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Caleb Sander Mateos , Christoph Hellwig Subject: [PATCH v2 1/3] block: take rq_list instead of plug in dispatch functions Date: Fri, 25 Apr 2025 19:17:26 -0600 Message-ID: <20250426011728.4189119-2-csander@purestorage.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250426011728.4189119-1-csander@purestorage.com> References: <20250426011728.4189119-1-csander@purestorage.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" blk_mq_plug_issue_direct(), __blk_mq_flush_plug_list(), and blk_mq_dispatch_plug_list() take a struct blk_plug * but only use its mq_list. Pass the struct rq_list * instead in preparation for calling them with other lists of requests. Drop "plug" from the function names as they are no longer plug-specific. Signed-off-by: Caleb Sander Mateos Reviewed-by: Christoph Hellwig --- block/blk-mq.c | 26 ++++++++++++-------------- block/mq-deadline.c | 2 +- 2 files changed, 13 insertions(+), 15 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 554380bfd002..fb514fd41d76 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2788,19 +2788,19 @@ static blk_status_t blk_mq_request_issue_directly(s= truct request *rq, bool last) if (!blk_mq_get_budget_and_tag(rq)) return BLK_STS_RESOURCE; return __blk_mq_issue_directly(hctx, rq, last); } =20 -static void blk_mq_plug_issue_direct(struct blk_plug *plug) +static void blk_mq_issue_direct(struct rq_list *rqs) { struct blk_mq_hw_ctx *hctx =3D NULL; struct request *rq; int queued =3D 0; blk_status_t ret =3D BLK_STS_OK; =20 - while ((rq =3D rq_list_pop(&plug->mq_list))) { - bool last =3D rq_list_empty(&plug->mq_list); + while ((rq =3D rq_list_pop(rqs))) { + bool last =3D rq_list_empty(rqs); =20 if (hctx !=3D rq->mq_hctx) { if (hctx) { blk_mq_commit_rqs(hctx, queued, false); queued =3D 0; @@ -2827,29 +2827,28 @@ static void blk_mq_plug_issue_direct(struct blk_plu= g *plug) out: if (ret !=3D BLK_STS_OK) blk_mq_commit_rqs(hctx, queued, false); } =20 -static void __blk_mq_flush_plug_list(struct request_queue *q, - struct blk_plug *plug) +static void __blk_mq_flush_list(struct request_queue *q, struct rq_list *r= qs) { if (blk_queue_quiesced(q)) return; - q->mq_ops->queue_rqs(&plug->mq_list); + q->mq_ops->queue_rqs(rqs); } =20 -static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sch= ed) +static void blk_mq_dispatch_list(struct rq_list *rqs, bool from_sched) { struct blk_mq_hw_ctx *this_hctx =3D NULL; struct blk_mq_ctx *this_ctx =3D NULL; struct rq_list requeue_list =3D {}; unsigned int depth =3D 0; bool is_passthrough =3D false; LIST_HEAD(list); =20 do { - struct request *rq =3D rq_list_pop(&plug->mq_list); + struct request *rq =3D rq_list_pop(rqs); =20 if (!this_hctx) { this_hctx =3D rq->mq_hctx; this_ctx =3D rq->mq_ctx; is_passthrough =3D blk_rq_is_passthrough(rq); @@ -2858,13 +2857,13 @@ static void blk_mq_dispatch_plug_list(struct blk_pl= ug *plug, bool from_sched) rq_list_add_tail(&requeue_list, rq); continue; } list_add_tail(&rq->queuelist, &list); depth++; - } while (!rq_list_empty(&plug->mq_list)); + } while (!rq_list_empty(rqs)); =20 - plug->mq_list =3D requeue_list; + *rqs =3D requeue_list; trace_block_unplug(this_hctx->queue, depth, !from_sched); =20 percpu_ref_get(&this_hctx->queue->q_usage_counter); /* passthrough requests should never be issued to the I/O scheduler */ if (is_passthrough) { @@ -2912,23 +2911,22 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, = bool from_schedule) * already know at this point that all requests belong to the * same queue, caller must ensure that's the case. */ if (q->mq_ops->queue_rqs) { blk_mq_run_dispatch_ops(q, - __blk_mq_flush_plug_list(q, plug)); + __blk_mq_flush_list(q, &plug->mq_list)); if (rq_list_empty(&plug->mq_list)) return; } =20 - blk_mq_run_dispatch_ops(q, - blk_mq_plug_issue_direct(plug)); + blk_mq_run_dispatch_ops(q, blk_mq_issue_direct(&plug->mq_list)); if (rq_list_empty(&plug->mq_list)) return; } =20 do { - blk_mq_dispatch_plug_list(plug, from_schedule); + blk_mq_dispatch_list(&plug->mq_list, from_schedule); } while (!rq_list_empty(&plug->mq_list)); } =20 static void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx, struct list_head *list) diff --git a/block/mq-deadline.c b/block/mq-deadline.c index 754f6b7415cd..2edf1cac06d5 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -713,11 +713,11 @@ static void dd_insert_request(struct blk_mq_hw_ctx *h= ctx, struct request *rq, list_add_tail(&rq->queuelist, &per_prio->fifo_list[data_dir]); } } =20 /* - * Called from blk_mq_insert_request() or blk_mq_dispatch_plug_list(). + * Called from blk_mq_insert_request() or blk_mq_dispatch_list(). */ static void dd_insert_requests(struct blk_mq_hw_ctx *hctx, struct list_head *list, blk_insert_t flags) { --=20 2.45.2