From patchwork Mon Sep 25 20:29:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 9970477 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9FF556038E for ; Mon, 25 Sep 2017 20:29:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 92DBE28A45 for ; Mon, 25 Sep 2017 20:29:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 87F3328A59; Mon, 25 Sep 2017 20:29:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3820E28A45 for ; Mon, 25 Sep 2017 20:29:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966243AbdIYU3s (ORCPT ); Mon, 25 Sep 2017 16:29:48 -0400 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:14298 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966239AbdIYU3q (ORCPT ); Mon, 25 Sep 2017 16:29:46 -0400 X-IronPort-AV: E=Sophos;i="5.42,437,1500912000"; d="scan'208";a="54015072" Received: from sjappemgw12.hgst.com (HELO sjappemgw11.hgst.com) ([199.255.44.66]) by ob1.hgst.iphmx.com with ESMTP; 26 Sep 2017 04:29:44 +0800 Received: from thinkpad-bart.sdcorp.global.sandisk.com (HELO thinkpad-bart.int.fusionio.com) ([10.11.172.152]) by sjappemgw11.hgst.com with ESMTP; 25 Sep 2017 13:29:26 -0700 From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, Christoph Hellwig , "Martin K . Petersen" , =Oleksandr Natalenko , Bart Van Assche , Ming Lei , Hannes Reinecke , Johannes Thumshirn Subject: [PATCH v4 6/7] scsi: Set QUEUE_FLAG_PREEMPT_ONLY while quiesced Date: Mon, 25 Sep 2017 13:29:23 -0700 Message-Id: <20170925202924.16603-7-bart.vanassche@wdc.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170925202924.16603-1-bart.vanassche@wdc.com> References: <20170925202924.16603-1-bart.vanassche@wdc.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Make the quiesce state visible to the block layer for the next patch in this series. Signed-off-by: Bart Van Assche Cc: Martin K. Petersen Cc: Ming Lei Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Johannes Thumshirn Reviewed-by: Christoph Hellwig --- drivers/scsi/scsi_lib.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index c261498606c4..309369d8fe01 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2932,6 +2932,8 @@ scsi_device_quiesce(struct scsi_device *sdev) mutex_lock(&sdev->state_mutex); err = scsi_device_set_state(sdev, SDEV_QUIESCE); + if (err == 0) + blk_set_preempt_only(q, true); mutex_unlock(&sdev->state_mutex); if (err) @@ -2960,8 +2962,10 @@ void scsi_device_resume(struct scsi_device *sdev) */ mutex_lock(&sdev->state_mutex); if (sdev->sdev_state == SDEV_QUIESCE && - scsi_device_set_state(sdev, SDEV_RUNNING) == 0) + scsi_device_set_state(sdev, SDEV_RUNNING) == 0) { + blk_set_preempt_only(sdev->request_queue, false); scsi_run_queue(sdev->request_queue); + } mutex_unlock(&sdev->state_mutex); } EXPORT_SYMBOL(scsi_device_resume);