From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 AA4C9C43331 for ; Thu, 2 Apr 2020 05:44:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 7BCA52064A for ; Thu, 2 Apr 2020 05:44:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nPs5gk4j" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7BCA52064A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=grimberg.me Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=rZegXSkehij4uV8UydIwRq5XDlH/VghoNAUnSROXKnI=; b=nPs5gk4jOYVi4d xG78NuhyDBgAN1M468xO5jh+NITVLa6UDEOaNXIHypgb53dqSq3QvUZ4Vkoq7fbgLr8OxHE78cWky tDAn/mH5NwjPr2AyK4vRNvJ3Xs1CecMT7o84KPB4DabqorsqVklUn1WAkR20/pvqK/V7uMJf/GS7t ano6dvj79qlfGTcO8WyAIBFiBkmDTdPmuCq61++WPP9tulC6e732a66OBNx1WFwZhsHaPwmxpZ6ey hTxYenBRG9yWyrXTKikUVBrQDNye7+TH5JgCnQTxCmhhK0nPn2TDTMPf61xteCXMYMjrX6Kryoigo KYNWXjUrIcQntG7FKJOA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jJsen-0006HZ-Fn; Thu, 02 Apr 2020 05:44:49 +0000 Received: from [2601:647:4802:9070:a836:db4c:a7ac:3d7c] (helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jJsel-0006HI-N0; Thu, 02 Apr 2020 05:44:47 +0000 From: Sagi Grimberg To: linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch Subject: [PATCH v2] nvme: inherit stable pages constraint in the mpath stack device Date: Wed, 1 Apr 2020 22:44:43 -0700 Message-Id: <20200402054443.14950-1-sagi@grimberg.me> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org If the backing device require stable pages, we need to set it on the stack mpath device as well. This applies to rdma/fc transports when doing data integrity and tcp transport calculating digests. Signed-off-by: Sagi Grimberg --- Changes from v1: - fixed change log description drivers/nvme/host/core.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 222925dfe364..8b3827370874 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1907,6 +1907,13 @@ static void __nvme_revalidate_disk(struct gendisk *disk, struct nvme_id_ns *id) if (ns->head->disk) { nvme_update_disk_info(ns->head->disk, ns, id); blk_queue_stack_limits(ns->head->disk->queue, ns->queue); + if (bdi_cap_stable_pages_required(ns->queue->backing_dev_info)) { + struct backing_dev_info *info = + ns->head->disk->queue->backing_dev_info; + + info->capabilities |= BDI_CAP_STABLE_WRITES; + } + revalidate_disk(ns->head->disk); } #endif -- 2.20.1 _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme