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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 EF265C2BA2B for ; Wed, 15 Apr 2020 04:06:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C42CB20784 for ; Wed, 15 Apr 2020 04:06:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="aP0tHhb9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725950AbgDOEGb (ORCPT ); Wed, 15 Apr 2020 00:06:31 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:28814 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725294AbgDOEG3 (ORCPT ); Wed, 15 Apr 2020 00:06:29 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1586923589; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=oLbhlgZzFDibP9R9n4hBuNeeF1cgEDuQEqH3Hj43Rl0=; b=aP0tHhb9InX6jmFOcQwp12MqzeoRPJ8AwuK3sQijNy8bYDFLndO4PtC8sMgMDokCVj+tYKj5 pI6SJ1lAmu4Jn7fZF2z+GQHKLLDyVuSPU8uphgvgMMhs3IBgM8S89x0awywhV39WM9bxPSTR AF/digVaqhduNz5u8JJgDpUlXTM= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e968840.7f06d4c1b998-smtp-out-n01; Wed, 15 Apr 2020 04:06:24 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 1035BC432C2; Wed, 15 Apr 2020 04:06:23 +0000 (UTC) Received: from codeaurora.org (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: stummala) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9F5CFC433CB; Wed, 15 Apr 2020 04:06:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9F5CFC433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=stummala@codeaurora.org From: Sahitya Tummala To: Jaegeuk Kim , Chao Yu , linux-f2fs-devel@lists.sourceforge.net Cc: Sahitya Tummala , linux-kernel@vger.kernel.org Subject: [PATCH] f2fs: report the discard cmd errors properly Date: Wed, 15 Apr 2020 09:35:54 +0530 Message-Id: <1586923554-30257-1-git-send-email-stummala@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In case a discard_cmd is split into several bios, the dc->error must not be overwritten once an error is reported by a bio. Also, move it under dc->lock. Signed-off-by: Sahitya Tummala --- fs/f2fs/segment.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index bd6dd19..745e4dd 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1031,9 +1031,9 @@ static void f2fs_submit_discard_endio(struct bio *bio) struct discard_cmd *dc = (struct discard_cmd *)bio->bi_private; unsigned long flags; - dc->error = blk_status_to_errno(bio->bi_status); - spin_lock_irqsave(&dc->lock, flags); + if (!dc->error) + dc->error = blk_status_to_errno(bio->bi_status); dc->bio_ref--; if (!dc->bio_ref && dc->state == D_SUBMIT) { dc->state = D_DONE; -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.