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=-12.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MISSING_HEADERS,SPF_HELO_NONE,SPF_PASS 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 C5CCCC433F5 for ; Mon, 13 Sep 2021 09:27:45 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D05961004 for ; Mon, 13 Sep 2021 09:27:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1D05961004 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-242-Lt3HL6bVP06uSB9MnF0zqg-1; Mon, 13 Sep 2021 05:27:40 -0400 X-MC-Unique: Lt3HL6bVP06uSB9MnF0zqg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7A46E1084686; Mon, 13 Sep 2021 09:27:35 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 47B631972E; Mon, 13 Sep 2021 09:27:34 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 1C73A1800B8B; Mon, 13 Sep 2021 09:27:32 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 18D9RU92020626 for ; Mon, 13 Sep 2021 05:27:30 -0400 Received: by smtp.corp.redhat.com (Postfix) id 893F3200B69F; Mon, 13 Sep 2021 09:27:30 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast03.extmail.prod.ext.rdu2.redhat.com [10.11.55.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 84D44200B696 for ; Mon, 13 Sep 2021 09:27:27 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C9492811E84 for ; Mon, 13 Sep 2021 09:27:27 +0000 (UTC) Received: from mail-qt1-f201.google.com (mail-qt1-f201.google.com [209.85.160.201]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-259-64R40vwqMFyDj-GKe28SgQ-1; Mon, 13 Sep 2021 05:27:26 -0400 X-MC-Unique: 64R40vwqMFyDj-GKe28SgQ-1 Received: by mail-qt1-f201.google.com with SMTP id f34-20020a05622a1a2200b0029c338949c1so54862956qtb.8 for ; Mon, 13 Sep 2021 02:27:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:message-id:mime-version:subject:from:cc; bh=PQ67016JCuw0wmarW+Gg6xUxvTIMgb10aFiL+BvYQI4=; b=qAWQzeoKd1blwzN/m4hlLwpLTBgdXszLXfWLhiTe/Qb7R8abHfO5obMkERBMRhyZVq 5AwPVY34PzO9VH+T6+lNHibWy85xgqvj59NTIcaHSk3Sh+eLGxq4TgrTdBvF+O0JcxZp dxk0xccPo8l8z+hHZp4LjEkZAaebdrHxWWb/0NVzt3NovpXZdii6dtmBWHVHc5lkaMEt L2avVV93TvF8umX9ClaRWsgrwWWTrQ5dP8x252Lj23zTKzMRYsCf+yt5ZKa826r2Pjx0 XF4K0e3rP6VEAKLpiolE9Ota2yE451cZXc4yCogsBJTACkCW+aw3jMpT6kykrDe2MvqK X2/w== X-Gm-Message-State: AOAM533sDa1UlM2xPXbw5FZZ1B7SwAgry398FiknbbijG/K5YYwPJOoF O7U2V38VbLunlkNtrwyhb+rbiP5GUQAXgA== X-Google-Smtp-Source: ABdhPJxMQ6XY9sfo57rAG/cK/FlLZ1uUwMeQq7Jr4fgisRGXbfJn0QmMjkHPRA1fD82P8E7cIRdhZ79f6/6VoA== X-Received: from akailash.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:1e6]) (user=akailash job=sendgmr) by 2002:ad4:57a7:: with SMTP id g7mr9762449qvx.42.1631525245649; Mon, 13 Sep 2021 02:27:25 -0700 (PDT) Date: Mon, 13 Sep 2021 09:26:42 +0000 Message-Id: <20210913092642.3237796-1-akailash@google.com> Mime-Version: 1.0 From: Akilesh Kailash X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-loop: dm-devel@redhat.com Cc: Mike Snitzer , linux-kernel@vger.kernel.org, dm-devel@redhat.com, samitolvanen@google.com, akailash@google.com, kernel-team@android.com, Alasdair Kergon Subject: [dm-devel] [PATCH] dm-verity: skip verity_handle_error on I/O errors X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 2 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit If there is an I/O error and FEC correction fails, return an error instead of calling verity_handle_error(). Suggested-by: Sami Tolvanen Signed-off-by: Akilesh Kailash --- This was discussed in [1] by Sami Tolvanen but was never implemented. [1] https://lore.kernel.org/dm-devel/b004e7c7-f795-77ed-19b9-983785780e92@gmail.com/T/#mec4df1ba3f3cb63846875fb2bfc1f8b3100f31f1 drivers/md/dm-verity-target.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index 22a5ac82446a..a6f7c452ee80 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -475,6 +475,7 @@ static int verity_verify_io(struct dm_verity_io *io) struct bvec_iter start; unsigned b; struct crypto_wait wait; + struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size); for (b = 0; b < io->n_blocks; b++) { int r; @@ -529,9 +530,17 @@ static int verity_verify_io(struct dm_verity_io *io) else if (verity_fec_decode(v, io, DM_VERITY_BLOCK_TYPE_DATA, cur_block, NULL, &start) == 0) continue; - else if (verity_handle_err(v, DM_VERITY_BLOCK_TYPE_DATA, + else { + if (bio->bi_status) { + /* + * Error correction failed; Just return error + */ + return -EIO; + } + if (verity_handle_err(v, DM_VERITY_BLOCK_TYPE_DATA, cur_block)) - return -EIO; + return -EIO; + } } return 0; -- 2.33.0.309.g3052b89438-goog -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel