From patchwork Wed Aug 28 02:29:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 11117723 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 79F101800 for ; Wed, 28 Aug 2019 02:29:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A2712173E for ; Wed, 28 Aug 2019 02:29:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="S9iGmRKX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726357AbfH1C34 (ORCPT ); Tue, 27 Aug 2019 22:29:56 -0400 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:27205 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726331AbfH1C3z (ORCPT ); Tue, 27 Aug 2019 22:29:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1566959395; x=1598495395; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=Zf0MDQJRBxCXI8NccwOPMOrHOvfBpcXR5EU39nZ7Dyg=; b=S9iGmRKXxQY1JlBL+o+1S5io795eB4lcYw+JbpxNXDQSnxZvYLwyTLuh Z3xQBYSXNrYUbQAdlooCVq+qSFRSqZluHTuxjX3ZPzB7qFsz5ZauuNbuQ yObvuMPprKG1HnlU7FMyqKdcD3KU6in4Ead2RSoqC2uvvg8JjAb2Cs5EC l+keUIrzyYYjvtNFtVUNGyG4JdoALIUTx0n7mlCRhNY0izeownLy8UZGG o9aTeUoa/aGQpLYMLNVGNyN2AIoXpKwI20hJju5UehUl2lc8vxfyzSvi2 zVFrza0ixUi+p9CnswW1boWRxSURgCLCSpLzQkx+23BwrljHi/jphX0Io w==; IronPort-SDR: qVtdCY6WFUPRmbH45zPor39j+2gRxxD0aj/MEKxSvXOoX/Ip1b3y0sUo8cNNfkw8KGJWfE9Ogh 1Tvvyfys1RRkl++OVm7qZGligqknijP9+xB5id6jvhri2cxNc2A6ZEUIVUY3FYJcd7jBlkXWDP 2jD+M2C/E7NHPqsD0dNv81X4KdK4ztNmclND3fRFmUrhMJtn+eCv53BkZj23ZBkMY/weFWNMZR xtyS9yx3GY4gGv3Th9+UaKgnrzgxEHmgb8Z6Il+zukyhvULRRajIR0JzIdDooG77TmYkVXukeU aOs= X-IronPort-AV: E=Sophos;i="5.64,439,1559491200"; d="scan'208";a="223475489" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 28 Aug 2019 10:29:54 +0800 IronPort-SDR: PivQC/MBfjxKhW3RnhHzhpsyNbB70PzT+w2SrfNcPsbkLi2vy5qR08pihBKMJWUOVmqu8NwbXX MswBSlH8j5D+mKUoQfOXTXwcSgR4OsTQ9O845BnoeqrXq58GjXahxfFKtP8rOVq8OpvOXnv70R qS491c/F72CxD3CXa+4dG5TfuW8q3xPadvMXa9GrN+fJm0LWYItz2eURSIw1oSNqa7F1STfMq3 JiFkh33oKwHDqiZHSNmYTcVwSdU3CPdRKYAhxprzdb3tKY0JxBQzlJB8XkfqQq9jIop6lM+pqy OYtiAqkzU0BWp75RSNKXUlMc Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2019 19:27:05 -0700 IronPort-SDR: kmSQCPvY9Yl0P/qLqPk/7Ph9bHEtL1zCCQibdcjMqEsQEPdKNFI36yY1BDK4OqFTfBSXa3f/Ib DXDfkhZgtbulqDbiuBT8r6Y/WOqxV40j8mr+DJTiXMlzniXlTnLfDN/rMdqDF4XY1q6ah+EcNa g+urg21gD9iHa4LNwY2EV1N68n/SRMWdoU4HH1+IWcA+uwe7YePUgjGM5XxUG71iydSHBgPcCy 0dQiZ0QLZPyY+786x8Di2QFzAcxB2lMfdqJglkRKJq7IixXRCh8qg1zKFOLXT7nDdSEl44rAM6 cu8= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip01.wdc.com with ESMTP; 27 Aug 2019 19:29:54 -0700 From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe , linux-scsi@vger.kernel.org, "Martin K . Petersen" Subject: [PATCH v2 6/7] block: Set ELEVATOR_F_ZBD_SEQ_WRITE for nullblk zoned disks Date: Wed, 28 Aug 2019 11:29:46 +0900 Message-Id: <20190828022947.23364-7-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190828022947.23364-1-damien.lemoal@wdc.com> References: <20190828022947.23364-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Using the helper blk_queue_required_elevator_features(), set the elevator feature ELEVATOR_F_ZBD_SEQ_WRITE as required for the request queue of null_blk devices created with zoned mode enabled. This feature requirement can always be satisfied as the mq-deadline elevator is always selected for in-kernel compilation when CONFIG_BLK_DEV_ZONED (zoned block device support) is enabled. Signed-off-by: Damien Le Moal Reviewed-by: Christoph Hellwig --- drivers/block/null_blk_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index b26a178d064d..b29b273690b0 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1695,6 +1695,8 @@ static int null_add_dev(struct nullb_device *dev) blk_queue_chunk_sectors(nullb->q, dev->zone_size_sects); nullb->q->limits.zoned = BLK_ZONED_HM; blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, nullb->q); + blk_queue_required_elevator_features(nullb->q, + ELEVATOR_F_ZBD_SEQ_WRITE); } nullb->q->queuedata = nullb;