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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 E6697C38A2F for ; Sat, 18 Apr 2020 14:49:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC9DF21D79 for ; Sat, 18 Apr 2020 14:49:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587221379; bh=mPI7dZVIo4iPlgnoF2Ep7DFHWMf+nmIW9xdSfeatkag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=u0EtJvK+le9yOpkZJniCDF4taI71tB5h67J4J16eaiejRaBhK5WqS5EMhhI6M3T9o 4uHpL3HZg2qeNW72USQrhzbf53TpKX3inN9B90xsBg4++AQPFYEVY/ZOX0CUrljiF1 HNrlPqzwmH/ND2brf2Ntfym908mkHvracjsPSZXU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728576AbgDROnZ (ORCPT ); Sat, 18 Apr 2020 10:43:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:54430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728570AbgDROnY (ORCPT ); Sat, 18 Apr 2020 10:43:24 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3613222251; Sat, 18 Apr 2020 14:43:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587221004; bh=mPI7dZVIo4iPlgnoF2Ep7DFHWMf+nmIW9xdSfeatkag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FmzAfwVYaOjh/O88VylBa2OfXxOz+svFYVgNHxTBrPM+rvi0NchqXvJSDVsn/UB7j DJb+htZ0w6Q2HQ1plcHueaKezxKgglkjeYBJKAr42rASeX7vlqzxu6d+8v6GwaJQQk fbClgMoHJONXF8srSs8cP7t+rb9LHXB9MYwXdQtQ= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Halil Pasic , "Michael S . Tsirkin" , Stefan Hajnoczi , Sasha Levin , virtualization@lists.linux-foundation.org, linux-block@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 45/47] virtio-blk: improve virtqueue error to BLK_STS Date: Sat, 18 Apr 2020 10:42:25 -0400 Message-Id: <20200418144227.9802-45-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200418144227.9802-1-sashal@kernel.org> References: <20200418144227.9802-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Halil Pasic [ Upstream commit 3d973b2e9a625996ee997c7303cd793b9d197c65 ] Let's change the mapping between virtqueue_add errors to BLK_STS statuses, so that -ENOSPC, which indicates virtqueue full is still mapped to BLK_STS_DEV_RESOURCE, but -ENOMEM which indicates non-device specific resource outage is mapped to BLK_STS_RESOURCE. Signed-off-by: Halil Pasic Link: https://lore.kernel.org/r/20200213123728.61216-3-pasic@linux.ibm.com Signed-off-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi Signed-off-by: Sasha Levin --- drivers/block/virtio_blk.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 728c9a9609f0c..9a3c2b14ac378 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -277,9 +277,14 @@ static blk_status_t virtio_queue_rq(struct blk_mq_hw_ctx *hctx, if (err == -ENOSPC) blk_mq_stop_hw_queue(hctx); spin_unlock_irqrestore(&vblk->vqs[qid].lock, flags); - if (err == -ENOMEM || err == -ENOSPC) + switch (err) { + case -ENOSPC: return BLK_STS_DEV_RESOURCE; - return BLK_STS_IOERR; + case -ENOMEM: + return BLK_STS_RESOURCE; + default: + return BLK_STS_IOERR; + } } if (bd->last && virtqueue_kick_prepare(vblk->vqs[qid].vq)) -- 2.20.1