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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE4E7CDB47E for ; Wed, 11 Oct 2023 20:20:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235141AbjJKUUu (ORCPT ); Wed, 11 Oct 2023 16:20:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235091AbjJKUUt (ORCPT ); Wed, 11 Oct 2023 16:20:49 -0400 Received: from mail-il1-x136.google.com (mail-il1-x136.google.com [IPv6:2607:f8b0:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F40B9B6 for ; Wed, 11 Oct 2023 13:20:47 -0700 (PDT) Received: by mail-il1-x136.google.com with SMTP id e9e14a558f8ab-355fbb84257so222015ab.1 for ; Wed, 11 Oct 2023 13:20:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1697055647; x=1697660447; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=lB/j2LtNeMz/W1YQQ732duppdg4xiLJo45Q+RSgVAQo=; b=xtMLL3AujsI8XG2mXYhKUB/spGXSmJKab1wO/UvQS/pPVYZARPmE+q8H5VdoRMh/IG 2/ie0e4WfoJrxn7MwIUU1jey8Kz0OCtZ6Gx8F5yZ3p+Cql8E56xlX9sAnutWbqSzV7Kq Ml+SaWHjAa0ntgCwGDvYPs9VgVRqAlZxhKrgkyoCR/TmVHC41Waj0OVMNozcOCKhkZMi JkfvejHYT6yyKfAPLzUKORCZDE3qQxLDY+k0S0EbX2kS7B1G8gOsiw85/hYi4hp//0Al v8FQb1gOjr0mablPKIPxrSRweSLmtdr3J5joUQZASyPdGibvXxtduZF+i5hnEySIM4Ol v+hQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697055647; x=1697660447; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=lB/j2LtNeMz/W1YQQ732duppdg4xiLJo45Q+RSgVAQo=; b=t0J5x+zPZNDT8O2Vx9lmp4O4+fyOFwTPpvfTNsuBasce/X7y8fjIiqmTDuB18fw1wj 5lLVnjOgFbbUYzPfcB8YSzwgy2MiYV4ZrsHfD9/q1bHjomNCnw72pgAFzRYCDjvC1yjn WTx+uoS/D3wlcslDlILi5jq66+XmWIxE4M+z+BuaoIvtWVLtfHWxutu0agtmYyvEcAdM wwdg/053tN6+9qALUxkMpIUuEGorY05b7d1FlgTLF0zi+yW+EOHAEQMrwdC0/L2vb00h ehWrV5f1//foG8P9QrcGBJatzTEsXFrakLoofqilMzhwJ+ad6v8TIAko3kIkDnZihaV6 6Zgw== X-Gm-Message-State: AOJu0YykS6r/aWyxusLJ+bH33bsvdYj7lX1xpSeVAbLhWZxPVTljJZrE Ro9gsqJtWYj+SrlGpcQA0S7UDA== X-Google-Smtp-Source: AGHT+IEruZKhD7bxlTjyy47l5LeM/sL4l3VP9Zm6qvwYHSSSMgVJNz0+ACbD8gaUX5jTiNivN3JKDQ== X-Received: by 2002:a92:db4f:0:b0:350:f353:4017 with SMTP id w15-20020a92db4f000000b00350f3534017mr20611565ilq.0.1697055647337; Wed, 11 Oct 2023 13:20:47 -0700 (PDT) Received: from [192.168.1.94] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id r13-20020a92ce8d000000b003513de0eae9sm177591ilo.24.2023.10.11.13.20.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Oct 2023 13:20:46 -0700 (PDT) Message-ID: Date: Wed, 11 Oct 2023 14:20:45 -0600 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] block: Don't invalidate pagecache for invalid falloc modes Content-Language: en-US To: Sarthak Kukreti , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Bart Van Assche , "Darrick J. Wong" , stable@vger.kernel.org, "Darrick J . Wong" , Christoph Hellwig , Mike Snitzer References: <20231011201230.750105-1-sarthakkukreti@chromium.org> From: Jens Axboe In-Reply-To: <20231011201230.750105-1-sarthakkukreti@chromium.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On 10/11/23 2:12 PM, Sarthak Kukreti wrote: > Only call truncate_bdev_range() if the fallocate mode is > supported. This fixes a bug where data in the pagecache > could be invalidated if the fallocate() was called on the > block device with an invalid mode. Fix looks fine, but would be nicer if we didn't have to duplicate the truncate_bdev_range() in each switch clause. Can we check this upfront instead? Also, please wrap commit messages at 72-74 chars. -- Jens Axboe