From patchwork Tue Apr 27 16:16:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12226969 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,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 ECCA8C43470 for ; Tue, 27 Apr 2021 16:24:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ACA1361164 for ; Tue, 27 Apr 2021 16:24:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237705AbhD0QYt (ORCPT ); Tue, 27 Apr 2021 12:24:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238034AbhD0QVb (ORCPT ); Tue, 27 Apr 2021 12:21:31 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35DA6C06138A; Tue, 27 Apr 2021 09:19:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=5gR/AErYq/eqzo3k8wU7l4HemKfkKmB0mPrgeTjUPj8=; b=TnfQYupz8ShFzD+aE3bkbUKgUj O1ADgldt6BaXkdknIi3/l6q0Mjh3NxH4eQ7mNuqlEjHaFKSYjymzKzMC5yLq2tmPLx2a+CwjC5Grh zdGi2lXbdtpBeR4ygfyL/4Mi+RRY1swoAGVNFfpdywGhqAgjcOU1miEjjlkvHwPEx1Psy+MAYcyzb Bjr9CzEEEyMFopMYY0ntacQLAgrw0b+iVWcsXdBEY0VEdmHiOWrGnLn6m1auOn0zOPgkO1BDbl5R+ n2Tz3gkJ0/PSYomcZMj3I4cIUkd3MUrce/XcVm0F+/gQ3Ufkrgkt79GhhmW8DpJ8ksceggdzcDr29 Kwq31pCQ==; Received: from [2001:4bb8:18c:28b2:c772:7205:2aa4:840d] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lbQQd-00Gr6T-Mj; Tue, 27 Apr 2021 16:19:16 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Jeffle Xu , Ming Lei , Damien Le Moal , Keith Busch , Sagi Grimberg , "Wunderlich, Mark" , "Vasudevan, Anil" , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 14/15] nvme-multipath: set QUEUE_FLAG_NOWAIT Date: Tue, 27 Apr 2021 18:16:18 +0200 Message-Id: <20210427161619.1294399-15-hch@lst.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210427161619.1294399-1-hch@lst.de> References: <20210427161619.1294399-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The nvme multipathing code just dispatches bios to one of the blk-mq based paths and never blocks on its own, so set QUEUE_FLAG_NOWAIT to support REQ_NOWAIT bios. Signed-off-by: Christoph Hellwig --- drivers/nvme/host/multipath.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 4e2c3a6787e9..1d17b2387884 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -442,6 +442,8 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head) if (!q) goto out; blk_queue_flag_set(QUEUE_FLAG_NONROT, q); + blk_queue_flag_set(QUEUE_FLAG_NOWAIT, q); + /* set to a default value for 512 until disk is validated */ blk_queue_logical_block_size(q, 512); blk_set_stacking_limits(&q->limits);