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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 D4470C433E7 for ; Tue, 20 Oct 2020 09:08:31 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 1F7A522283 for ; Tue, 20 Oct 2020 09:08:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="PImUlpSl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F7A522283 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com 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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=mTIMaqpSKp7waN/zs1+imPiVBnMpv3UlLR4sTaMKZCw=; b=PImUlpSl27q/72RmFfeT/vTOsL xniTARd/5A0wUNbtHWSyrIbPcvDaS6zFZwga6wckRHWT7c6UKlbYpq4uTIHpnbGG3N8eujBglkBsK yWxfCuRR4X7yeHiCNy/HMYaaF8yaIeVgySpIDv3ZM5ijM5CxC5fsNUQZ2dGHAdjWt783aWOVbia/s ep5MqdHTRAU+2dtozzkF2jp57i9WTk9CnqhU9f15Ap9baavEkbAOezZXPfewyHvNWbj36/gJ8FW/P EUYTYHZrd/ogR+NsQqMe8N/22DF6/yDzijKC4WvUaTjPbN3qhhQbcXnsgmxlm15F3EeuT+M23TJhu aGYARDkQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUnd7-0007M6-3v; Tue, 20 Oct 2020 09:08:29 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUnd4-0007Kk-9G for linux-nvme@lists.infradead.org; Tue, 20 Oct 2020 09:08:27 +0000 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 44882EC1EC2117FC1509; Tue, 20 Oct 2020 17:08:23 +0800 (CST) Received: from huawei.com (10.29.88.127) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Tue, 20 Oct 2020 17:08:17 +0800 From: Chao Leng To: Subject: [PATCH 1/3] nvme-core: introduce sync io queues Date: Tue, 20 Oct 2020 17:08:17 +0800 Message-ID: <20201020090817.27755-1-lengchao@huawei.com> X-Mailer: git-send-email 2.16.4 MIME-Version: 1.0 X-Originating-IP: [10.29.88.127] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201020_050826_560438_6C477D1A X-CRM114-Status: UNSURE ( 8.47 ) X-CRM114-Notice: Please train this message. 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: , Cc: kbusch@kernel.org, axboe@fb.com, hch@lst.de, lengchao@huawei.com, sagi@grimberg.me 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 Introduce sync io queues for some scenarios which just only need sync io queues not sync all queues. Signed-off-by: Chao Leng --- drivers/nvme/host/core.c | 8 ++++++-- drivers/nvme/host/nvme.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e85f6304efd7..2211cf155e89 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4573,8 +4573,7 @@ void nvme_start_queues(struct nvme_ctrl *ctrl) } EXPORT_SYMBOL_GPL(nvme_start_queues); - -void nvme_sync_queues(struct nvme_ctrl *ctrl) +void nvme_sync_io_queues(struct nvme_ctrl *ctrl) { struct nvme_ns *ns; @@ -4582,7 +4581,12 @@ void nvme_sync_queues(struct nvme_ctrl *ctrl) list_for_each_entry(ns, &ctrl->namespaces, list) blk_sync_queue(ns->queue); up_read(&ctrl->namespaces_rwsem); +} +EXPORT_SYMBOL_GPL(nvme_sync_io_queues); +void nvme_sync_queues(struct nvme_ctrl *ctrl) +{ + nvme_sync_io_queues(ctrl); if (ctrl->admin_q) blk_sync_queue(ctrl->admin_q); } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 566776100126..49d7f43511d4 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -602,6 +602,7 @@ void nvme_stop_queues(struct nvme_ctrl *ctrl); void nvme_start_queues(struct nvme_ctrl *ctrl); void nvme_kill_queues(struct nvme_ctrl *ctrl); void nvme_sync_queues(struct nvme_ctrl *ctrl); +void nvme_sync_io_queues(struct nvme_ctrl *ctrl); void nvme_unfreeze(struct nvme_ctrl *ctrl); void nvme_wait_freeze(struct nvme_ctrl *ctrl); int nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout); -- 2.16.4 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme