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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 46C9AC433ED for ; Wed, 12 May 2021 09:42:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0844E61285 for ; Wed, 12 May 2021 09:42:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230185AbhELJnL (ORCPT ); Wed, 12 May 2021 05:43:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230149AbhELJnL (ORCPT ); Wed, 12 May 2021 05:43:11 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E255C06174A for ; Wed, 12 May 2021 02:42:02 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id gx5so33991146ejb.11 for ; Wed, 12 May 2021 02:42:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=l67ByTuTDoxE8yyQ8qcNrrbIp/HYHnBIsJgxG8dbjrI=; b=VB9h/9qWvHCD1s8q/hkPC/FNEHZNZrvAVjNYXTEvbyL0YZYhdSlLIp0fqLuIpoAw2V YAtX8WW1yq9KV1c7fqhLQkRj/bR8gBVyjbTvUfKVXc6dN/Tq2+PhiUxdZ75i28ssV3N8 oRCmPhULFyZzRNQzYevfoV/IqbKMxBGNyjuGGwa74A6HWjOZlSKIcqHKYriLnluVCA3g KFHZU/2kqqQ8Swy/RJHg67lhuqY6nr6EEyjO79YYRVFY5h0CJFJOj9jWUGoeVjYRfder bB5NwJzovXwvSqSCXBR3SjDkPoHGqo5uBqQkvBgRlrKd303CXrgYWGvV1z3ibdf6+gTJ Cxfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=l67ByTuTDoxE8yyQ8qcNrrbIp/HYHnBIsJgxG8dbjrI=; b=WxtKu8ol05LwIHbjKNuAndCN/m7Pl0saal25LtuDW2mvcj9+Rb+Dua8HN4QXSV5n/t zhrk8T5CYGBt96q9uUSXBLeAZHUNRktKgAyA7XFMYMbUnnk8Du0AF4ETYbFYtjXUV9af gVS2Bce6QSZodccgbE/BHVqJMas1dYa5wc5NOXnYMbVWC3S3tjTsUk9pa2ufsxF7oupe 0Zq/S67rzdT/09nYK0hEB9QYW+ScwNnOvnXA8X5nzRwizlsClHiInw2k775ome7oM076 ICeBsiMsW8qzuvirBBI/DmOtzEFOYr9x4GvAd3bSjv6SFK13oMeVLk0PSGbZ/JZBe1NW UPmA== X-Gm-Message-State: AOAM533Q6P3brEo4YDbKhb4qcljjb4pMDHs7ftMhF0ERQKLYiH9AI7lV J9UNcQV+AQxIu1hnHqoss0BvCg== X-Google-Smtp-Source: ABdhPJwA/wyTJH2N1EhbJuFMeD0itT6fZEu7ZC6i1v9R/3IFDDjXAZRFolYivRZ28QLfDFgNNpXSnw== X-Received: by 2002:a17:906:7ac9:: with SMTP id k9mr37393045ejo.229.1620812521113; Wed, 12 May 2021 02:42:01 -0700 (PDT) Received: from localhost.localdomain ([83.216.184.132]) by smtp.gmail.com with ESMTPSA id p22sm17068261edr.4.2021.05.12.02.41.59 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 May 2021 02:42:00 -0700 (PDT) From: Paolo Valente To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yi.zhang@redhat.com, Paolo Valente Subject: [PATCH BUGFIX 0/1] block, bfq: a bugfix for stable merge Date: Wed, 12 May 2021 11:43:51 +0200 Message-Id: <20210512094352.85545-1-paolo.valente@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi, this patch fixes a bug I've found while debugging a failure reported by Yi Zhang [1]. This patch seems to make that failure disappear [1]. Yet it was tested only together with other debug patches (which add logs and invariant checks), so I don't know whether the other patches influenced the outcome as well. At any rate, this patch does fix a bug. Thanks, Paolo [1] https://www.spinics.net/lists/linux-block/msg67840.html Paolo Valente (1): block, bfq: avoid circular stable merges block/bfq-iosched.c | 31 +++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-) -- 2.20.1