From patchwork Wed May 29 05:04:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13677777 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 smtp.subspace.kernel.org (Postfix) with ESMTPS id 49E0415B569; Wed, 29 May 2024 05:05:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716959122; cv=none; b=b9MPHFgTCdJtE9HM59qTQITEL9jGn+op2QiEx44HBuwu24zkwT/woE9O17Dkur4BdmHX6aemZNRDabHd5BhojbufJJIM7ZYZDg7gbGiUh13jtW077IdboDh6Y3JKKJXiu9VoBZrWn0ge8Zf6miI+OYjpkBD9oTOhufJf1/FKpX8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716959122; c=relaxed/simple; bh=BKqjRgAUBDAEkcY3F8nYF+/jiJdinAAzSez7/+1I6I0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=THXPqd3VQqmlNqvRF4SeGoCbSj28wzFXOLLBrUOtAjw81oYNKliUs+qCyE8pgVuZBhvdK7kww7gT8gt25IQL0g/Q5XxzFaFEQkcEvYItlaJzLGEcTA/vrOHtVju407da+MgQT1huYzFky4ZDv8LQZZGI9ZzGtchaWraVkP4hBWg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=OeadjJJG; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="OeadjJJG" 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=/OLpY6jO6BGmZUZluvnHNfe+GDP4sT7VwC1y29SpC6U=; b=OeadjJJGioCa4ge9VNZLLPIeJ8 O9S5rUx9FafsfCUd/nVJdDPOpkJsv/E9yKCxbOOv290nnhE62p3wpyYQNPmrOmNyU3hzVOzhGPQxa 5a4T1lTIFSW+n3MtalzxAOCYtI3DQHhzspZ8bYnEdLFBuQ+bNkNK5b871ug/c8Zf1MXixhuq1fwcL BxKay23FFqMmNqBL5VSxy6HUEZFvyI7zrsX4GqEOmWHd2HuIc7ZktQuuiNYT9hnqC19jbRgfOjXtD KR9+Ssjbvj0F4kFxGdIepfLmbgfwNS35I/CDczeE6V2t2s7vUtO9/Gkm7F3aD4SXdu4zuGlpm8kbx t86dAPmA==; Received: from 2a02-8389-2341-5b80-7775-b725-99f7-3344.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:7775:b725:99f7:3344] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sCBUv-00000002pSP-1Lzk; Wed, 29 May 2024 05:05:13 +0000 From: Christoph Hellwig To: Jens Axboe , "Martin K. Petersen" Cc: Richard Weinberger , Anton Ivanov , Johannes Berg , Josef Bacik , Ilya Dryomov , Dongsheng Yang , =?utf-8?q?Roger_Pau_Monn?= =?utf-8?q?=C3=A9?= , linux-um@lists.infradead.org, linux-block@vger.kernel.org, nbd@other.debian.org, ceph-devel@vger.kernel.org, xen-devel@lists.xenproject.org, linux-scsi@vger.kernel.org Subject: [PATCH 01/12] ubd: untagle discard vs write zeroes not support handling Date: Wed, 29 May 2024 07:04:03 +0200 Message-ID: <20240529050507.1392041-2-hch@lst.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240529050507.1392041-1-hch@lst.de> References: <20240529050507.1392041-1-hch@lst.de> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Discard and Write Zeroes are different operation and implemented by different fallocate opcodes for ubd. If one fails the other one can work and vice versa. Split the code to disable the operations in ubd_handler to only disable the operation that actually failed. Fixes: 50109b5a03b4 ("um: Add support for DISCARD in the UBD Driver") Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Bart Van Assche --- arch/um/drivers/ubd_kern.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index ef805eaa9e013d..a79a3b7c33a647 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -471,9 +471,14 @@ static void ubd_handler(void) for (count = 0; count < n/sizeof(struct io_thread_req *); count++) { struct io_thread_req *io_req = (*irq_req_buffer)[count]; - if ((io_req->error == BLK_STS_NOTSUPP) && (req_op(io_req->req) == REQ_OP_DISCARD)) { - blk_queue_max_discard_sectors(io_req->req->q, 0); - blk_queue_max_write_zeroes_sectors(io_req->req->q, 0); + if (io_req->error == BLK_STS_NOTSUPP) { + struct request_queue *q = io_req->req->q; + + if (req_op(io_req->req) == REQ_OP_DISCARD) + blk_queue_max_discard_sectors(q, 0); + if (req_op(io_req->req) == REQ_OP_WRITE_ZEROES) + blk_queue_max_write_zeroes_sectors(q, + 0); } blk_mq_end_request(io_req->req, io_req->error); kfree(io_req);