Received: by 2002:a05:6a10:17d3:0:0:0:0 with SMTP id hz19csp3317659pxb; Tue, 20 Apr 2021 05:50:46 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxNN2w233o75LN6p+OKxm5/SOAePfUO4OUwT4rDwl1qUlwTyMuCR5z9wPf1Gn94ia9igVpd X-Received: by 2002:a17:906:73d7:: with SMTP id n23mr26734923ejl.149.1618923045795; Tue, 20 Apr 2021 05:50:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1618923045; cv=none; d=google.com; s=arc-20160816; b=n0oK/ggjKG7v3Frw9mylVxUCIgvQU1mOOHAiFY8jb55smaBZOihwk8hcP2BXfyfRTO XtzCYodT5gtV4WRwz9fjAiQ/1Ea9JeLfgOrjmM+/jC13A6YCYAb6uKoVGY3cgHrmKtEE CQp/JXbzjGyCjXWrD+egNSdBpAwAE2Ns4s04N9XWeZ4oayhFZsJkiXQ7Lr9cSgTynFAt Hbx6JbA84h2NaMMm/1tJWRbfHhifqUFJ6nl2zTcAnHhVPe6DEA2AQ1KaS6SL/Br+VCRq wCuwfxHhlMttiQcN2dTk2GUpxzYiJwZ4cMQzpS3k5x13JPPgnrotk1eKJ3cHN4GaQdjW qtGg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=UBs/3IU4qOqe26pmfSqrhN0agM0g3vHrn8n2VyPPRIA=; b=J2QODra3noBprvCR0Lm7O6pMOmW/9OHKnKbjVM9v2+IrZpi361VLQb6tybNxPqUqix Dcmyivcu1iV/tKB8JXXz2qVkV4XUPLtZAFE4FNR9oaLzNlr8LBManq0D7bMRT4/OIPwU 5H2RR3Glr7b+/5kvfWgGQCWPtapbUH/IR6NVF8PthP66ojxuALqqYwtS2abicynZRIcm WccGM2nAxIamKa0zrE1UTWBw+kWDBWucPrYXc44pOhqWlIsoW0EZgwyMIGMQ8KE9sker fCmQiXKexQmFqfmzfAejWG8eqfde3+5fo66MObkxkoPjqqnKU7L1Cvo31g7MKM7N575a vK7A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=Cp8tD01w; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id b13si15671201ede.383.2021.04.20.05.50.22; Tue, 20 Apr 2021 05:50:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=Cp8tD01w; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231766AbhDTMtw (ORCPT + 99 others); Tue, 20 Apr 2021 08:49:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230408AbhDTMtu (ORCPT ); Tue, 20 Apr 2021 08:49:50 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D07E8C06174A; Tue, 20 Apr 2021 05:49:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=UBs/3IU4qOqe26pmfSqrhN0agM0g3vHrn8n2VyPPRIA=; b=Cp8tD01wvbGNq/BTg28Lb+24q0 24nfSk4rkJykvYI8OV7ePARwDW8y3pbJDxTKxcyZl7CXUUDJkBV2GQWQIxT4lYugJINfq9bIqLJH6 pbP0y3i+ukb+uPu8rHGXLtGebC0wxoq7FP8da4zS53Jn/tWaCsSt1opwbRHjsrd81LycIBj9958YC 11NWXr32TwC/JbcLS1xgRm/wUNg/SZt9y/JF2YWjSB/SEHVGfK6YwAKITc2MeDVdR8AqnMY4DYp65 8Q/4sHztBrh7o5GMuQDP+xCHJorg7Jahxp61dMtl440AKp4j5SK57VhiZ9sIuCozrJpMBvLhpMi+M m/Cq4l1w==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lYplq-00FATl-EQ; Tue, 20 Apr 2021 12:47:19 +0000 Date: Tue, 20 Apr 2021 13:46:26 +0100 From: Christoph Hellwig To: Luis Chamberlain Cc: rafael@kernel.org, gregkh@linuxfoundation.org, viro@zeniv.linux.org.uk, jack@suse.cz, bvanassche@acm.org, jeyu@kernel.org, ebiederm@xmission.com, mchehab@kernel.org, keescook@chromium.org, linux-fsdevel@vger.kernel.org, kernel@tuxforce.de, kexec@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC v2 4/6] fs: distinguish between user initiated freeze and kernel initiated freeze Message-ID: <20210420124626.GB3604224@infradead.org> References: <20210417001026.23858-1-mcgrof@kernel.org> <20210417001026.23858-5-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210417001026.23858-5-mcgrof@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Wouldn't it be simpler to just add a new flag to signal a kernel initiated freeze, or even better the exact reason (suspend) instead of overloading the state machine?