Re: utimensat fails to update ctime

From: Eric Blake <ebb9@byu.net>
To: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Christoph Hellwig <hch@lst.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	xfs@oss.sgi.com
Subject: Re: utimensat fails to update ctime
Date: Mon, 21 Dec 2009 21:37:24 -0700	[thread overview]
Message-ID: <4B304D04.6040501@byu.net> (raw)
In-Reply-To: <87hbrkjrk8.fsf@devron.myhome.or.jp>

According to OGAWA Hirofumi on 12/21/2009 8:05 AM:
>> It may also be file-system dependent.  On the machine where I saw the
>> original failure:
>>> $ uname -a
>>> Linux fencepost 2.6.26-2-xen-amd64 #1 SMP Thu Nov 5 04:27:12 UTC 2009
>>> x86_64 GNU/Linux
>> $ df -T .
>> Filesystem    Type   1K-blocks      Used Available Use% Mounted on
>> /dev/sdb1      xfs   419299328 269018656 150280672  65% /srv/data
> 
> Thanks.
> 
> This is good point. This would be xfs issue or design. xfs seems to have
> own special handling of ctime.

Here's another report, this time about an mtime update not happening on
ntfs-3g.  http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/19336

-- 
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net

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