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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 21B0FC433DB for ; Tue, 26 Jan 2021 08:46:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E184B2065C for ; Tue, 26 Jan 2021 08:45:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390386AbhAZIoM (ORCPT ); Tue, 26 Jan 2021 03:44:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:60692 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726436AbhAYSoc (ORCPT ); Mon, 25 Jan 2021 13:44:32 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 44394206B2; Mon, 25 Jan 2021 18:43:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611600231; bh=Zre9xN4B5sAFFPoqVTjVCV9JQ+afoyvyRaMMzf8zJyw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EI6oFR37Y4UTUX7iPt2go/oX7skoFUzKm+83VcIcErA4R7Z5bp5+UdcO5sKqCqAnz ZmHPyaaB1j2gK1P8a0jDHGWysyW5ocTyNRjcgDCYgsHcgOaZhWfw11cXRqPpzOoBTg IFndeuQwC2oVD75u5PfViJD8pvSVXXzPQUbQJY8k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christoph Hellwig , "Ewan D. Milne" , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.4 23/86] scsi: sd: Suppress spurious errors when WRITE SAME is being disabled Date: Mon, 25 Jan 2021 19:39:05 +0100 Message-Id: <20210125183202.027814719@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125183201.024962206@linuxfoundation.org> References: <20210125183201.024962206@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ewan D. Milne [ Upstream commit e5cc9002caafacbaa8dab878d17a313192c3b03b ] The block layer code will split a large zeroout request into multiple bios and if WRITE SAME is disabled because the storage device reports that it does not support it (or support the length used), we can get an error message from the block layer despite the setting of RQF_QUIET on the first request. This is because more than one request may have already been submitted. Fix this by setting RQF_QUIET when BLK_STS_TARGET is returned to fail the request early, we don't need to log a message because we did not actually submit the command to the device, and the block layer code will handle the error by submitting individual write bios. Link: https://lore.kernel.org/r/20201207221021.28243-1-emilne@redhat.com Reviewed-by: Christoph Hellwig Signed-off-by: Ewan D. Milne Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/sd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 6a2f8bacfacea..f55249766d224 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -934,8 +934,10 @@ static blk_status_t sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd) } } - if (sdp->no_write_same) + if (sdp->no_write_same) { + rq->rq_flags |= RQF_QUIET; return BLK_STS_TARGET; + } if (sdkp->ws16 || lba > 0xffffffff || nr_blocks > 0xffff) return sd_setup_write_same16_cmnd(cmd, false); -- 2.27.0