From owner-svn-src-head@FreeBSD.ORG  Wed Jan 28 18:14:49 2015
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 6235C97D;
 Wed, 28 Jan 2015 18:14:49 +0000 (UTC)
Received: from gw.catspoiler.org (cl-1657.chi-02.us.sixxs.net
 [IPv6:2001:4978:f:678::2])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 12CD6818;
 Wed, 28 Jan 2015 18:14:48 +0000 (UTC)
Received: from FreeBSD.org (mousie.catspoiler.org [192.168.101.2])
 by gw.catspoiler.org (8.13.3/8.13.3) with ESMTP id t0SIEcLJ001370;
 Wed, 28 Jan 2015 10:14:42 -0800 (PST)
 (envelope-from truckman@FreeBSD.org)
Message-Id: <201501281814.t0SIEcLJ001370@gw.catspoiler.org>
Date: Wed, 28 Jan 2015 10:14:38 -0800 (PST)
From: Don Lewis <truckman@FreeBSD.org>
Subject: Re: svn commit: r277828 - in head/sys: fs/tmpfs vm
To: kostikbel@gmail.com
In-Reply-To: <20150128174604.GN42409@kib.kiev.ua>
MIME-Version: 1.0
Content-Type: TEXT/plain; charset=us-ascii
Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org,
 src-committers@FreeBSD.org
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Jan 2015 18:14:49 -0000

On 28 Jan, Konstantin Belousov wrote:
> On Wed, Jan 28, 2015 at 09:41:06AM -0800, Don Lewis wrote:
>> On 28 Jan, Konstantin Belousov wrote:
>> > Author: kib
>> > Date: Wed Jan 28 10:37:23 2015
>> > New Revision: 277828
>> > URL: https://svnweb.freebsd.org/changeset/base/277828
>> > 
>> > Log:
>> >   Update mtime for tmpfs files modified through memory mapping.  Similar
>> >   to UFS, perform updates during syncer scans, which in particular means
>> >   that tmpfs now performs scan on sync.  Also, this means that a mtime
>> >   update may be delayed up to 30 seconds after the write.
>> 
>> Maybe disable the scan if mounted noatime?
> It is for mtime, not atime, updates.

Yeah, I haven't had my caffeine fix yet this morning ...