Received: by 10.223.176.5 with SMTP id f5csp747649wra; Fri, 2 Feb 2018 05:33:09 -0800 (PST) X-Google-Smtp-Source: AH8x226TQX4sfncDrCZVhid5fYrsjSm5h0Fzbkx1wQ8JkLxWgXlf+ZDVzZZubDcQEq+io9btkJhx X-Received: by 10.99.95.150 with SMTP id t144mr1840281pgb.59.1517578389455; Fri, 02 Feb 2018 05:33:09 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1517578389; cv=none; d=google.com; s=arc-20160816; b=F8phagbfRgLXqx2YuKvQcilJGOrd5lq3vB//a2XXMIPJsCGayhTuni+IlQduu24Qqb 0V1uofhZzV9BTKx5Gri/GLi3y2o4v08J4anWkz/DFb95LLUGMTGYTzn9x4j1GIgT7JjU Q4jxRYkEj7JpWXMDupWS9TSJDxtQVnAndWTBDTbapkzXFOzwkmH/vAeF+TeinUDKhI9F 16tVu/Ob6CMPde1aNLACQWUR6DnIA1YYAh8qjoPDhtasfrM0F7+p26K2rPIgFIJ5HMxG VqswH2DpiMMXoC5wTsUTG39bkfJNpm+WyCf4HhRFljfAbC3eI5ibGKK0wUBeCZR0PmYD Y8jQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:date:message-id:subject:from:cc:to :arc-authentication-results; bh=1kvPl5uQRE7BD4imBVMS7jWv9KWpITUc2BsBbinNkPc=; b=AwWTZmJ8Zz7lGnUWV0uOrDGC05CjlthJHpfbLuNLvfHa8szLEmVLZc3DMxa/+hR2WZ Qo6dwnm1QonFGS9HPO+J7XZN/02Tuqq2Mu7BVkbXK5sGH79cVmjjcq0tq9fGQAYcRltc ikvPfQKEzKMjVjRpX85BoH+t25Lq1P3SIKNxGIDy/CeOS2RZfvd4QyVPOQYxc8efJPkG C8KnEGW47sLBKgao6cd29HWfhHGolr3LQIuL6MiUHielLNsfGUzoH4+TfFq3XuwPX6B9 Em9SPjqE2i5F94gMEsVZmJnFwyC5yo19/RCJWpa8viFbl6/Pbke3k31uJe6ue0m1IcQw NdYw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id d4si38778pfd.127.2018.02.02.05.32.54; Fri, 02 Feb 2018 05:33:09 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751857AbeBBNcP (ORCPT + 99 others); Fri, 2 Feb 2018 08:32:15 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:34718 "EHLO huawei.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751416AbeBBNcI (ORCPT ); Fri, 2 Feb 2018 08:32:08 -0500 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 56BA7C2958DBB; Fri, 2 Feb 2018 21:31:59 +0800 (CST) Received: from [127.0.0.1] (10.177.16.168) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.361.1; Fri, 2 Feb 2018 21:31:52 +0800 To: Eric Van Hensbergen , Ron Minnich , Latchesar Ionkov , CC: , , "Eduard Shishkin" , "Wangguoli (Andy)" From: jiangyiwen Subject: [V9fs-developer] [RFC] why set SB_NOATIME in v9fs_fill_super by default Message-ID: <5A746839.9020602@huawei.com> Date: Fri, 2 Feb 2018 21:31:37 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.16.168] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I found v9fs always set SB_NOATIME into sb->s_flags in v9fs_fill_super, even if user use mount option relatime, I am very curious about this thing, can anyone tell me? Thanks, Yiwen Jiang.