Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 075F7C433F5 for ; Thu, 16 Dec 2021 20:22:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234732AbhLPUVz (ORCPT ); Thu, 16 Dec 2021 15:21:55 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:58718 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233586AbhLPUVy (ORCPT ); Thu, 16 Dec 2021 15:21:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639686113; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4jNVvkqs0Rpz1daVHHfDUsDlVwoDvruQypySygjyOd8=; b=PZrRqMrrRLLKE9wCFTsLEmZaq8G262bV1KP+5vzEtGV0lFR2ZiiqSJc0QZQtPMEJ6timNt JI94rq8Uv50ocEWttK2ZthtUyKkP8TGfICor7G2WxZ+Zjy19RYJ7DQ3xsbVZtQtGUvGeDd O6pUQFvpWedabl25DviQIIiHXFOBMwo= Received: from mail-ed1-f72.google.com (mail-ed1-f72.google.com [209.85.208.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-296-zzJ3WoY5PE-9AlO7xkopnA-1; Thu, 16 Dec 2021 15:21:51 -0500 X-MC-Unique: zzJ3WoY5PE-9AlO7xkopnA-1 Received: by mail-ed1-f72.google.com with SMTP id w4-20020aa7cb44000000b003e7c0f7cfffso24302218edt.2 for ; Thu, 16 Dec 2021 12:21:51 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=4jNVvkqs0Rpz1daVHHfDUsDlVwoDvruQypySygjyOd8=; b=THwApSub+Lg6iXXgsCMWnMWuJWvpGQUJupA6prO1YX2mv/yET54ZPAT4FEQZsSl3nm sW+mnGMhrOQUad+8+c9+e/mhUq5MgOEoKWPJ2S2WrkCRjiZm20y5o5ao6fM5s6ImMhUt 9Ani6LyK8pQUq0gKlNesgZdKY4IwoDWTj0kx49vqK8qGwxwLFkSxkBXknuwLtR0Mk/tT EbJaM6nRZtzTl276o7aOvjhRLDnaJzSmS2GqsLEQlqVsrTPimDsqJWDMbX558ufrxorg ccaJFM5ll2OcnmG6hz5DXXQcKI/+e1EZ8Xzii0K5B1eIuQmiFDBo5RCTzXwPhdMWjVBX GF9A== X-Gm-Message-State: AOAM5327POsg7YXKuCYePgWI9ovpMcqiaIsVy2OZALhSXS0R69V0oJUp O/ZDOsIXyW5RC6cNPnvms/U4orRtrS9tKR3U8lgFwD2T+A/szz3OdmLi+tICyDLfIMJgaAHZHh+ 8Sd2W4qGwr/0olYDorDG69AHxFd0kFqeqv2nwCUR9 X-Received: by 2002:a17:906:d54e:: with SMTP id cr14mr4585123ejc.724.1639686110604; Thu, 16 Dec 2021 12:21:50 -0800 (PST) X-Google-Smtp-Source: ABdhPJz5TrBQDhec5S8MpqrzjB+uugBOSGONH0FwNYWw86mCaVHMpLi8Qk2TWqknosMRVZK6sy//lsKyzlgelaA3h2k= X-Received: by 2002:a17:906:d54e:: with SMTP id cr14mr4585114ejc.724.1639686110406; Thu, 16 Dec 2021 12:21:50 -0800 (PST) MIME-Version: 1.0 References: <20211213123737.9147-1-wander@redhat.com> <20211213123737.9147-3-wander@redhat.com> <20211215123116.622da7ef@gandalf.local.home> <2f3300ba-0879-ad7d-8d44-bb8d8b17d7e2@kernel.dk> In-Reply-To: <2f3300ba-0879-ad7d-8d44-bb8d8b17d7e2@kernel.dk> From: Wander Costa Date: Thu, 16 Dec 2021 17:21:39 -0300 Message-ID: Subject: Re: [PATCH v2 2/2] blktrace: switch trace spinlock to a raw spinlock To: Jens Axboe Cc: Steven Rostedt , Sebastian Andrzej Siewior , Wander Lairson Costa , open list , Thomas Gleixner , linux-rt-users@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 15, 2021 at 4:34 PM Jens Axboe wrote: > > On 12/15/21 10:31 AM, Steven Rostedt wrote: > > On Wed, 15 Dec 2021 18:08:34 +0100 > > Sebastian Andrzej Siewior wrote: > > > >> On 2021-12-13 09:37:37 [-0300], Wander Lairson Costa wrote: > >> =E2=80=A6 > >>> To avoid this bug, we switch the trace lock to a raw spinlock. > >> > >> Steven, do you think this is a good idea? > >> > > > > blktrace is actually maintained by Jens. > > Looks like there are two patches, and none were CC'ed linux-block. > Please resend. > Ok, I am going to do it, thanks. > -- > Jens Axboe >