From: Dave Chinner <david@fromorbit.com>
To: Brian Foster <bfoster@redhat.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution
Date: Fri, 5 Sep 2014 10:45:01 +1000 [thread overview]
Message-ID: <20140905004501.GU20518@dastard> (raw)
In-Reply-To: <1409848708-42666-1-git-send-email-bfoster@redhat.com>
On Thu, Sep 04, 2014 at 12:38:28PM -0400, Brian Foster wrote:
> xfsdump encodes and stores the full atime and mtime for each file with
> nanosecond resolution. xfsrestore uses utime() to set the times of each
> file that is restored. The latter supports resolution of 1 second, thus
> sub-second timestamp data is lost on restore.
That doesn't seem like a big deal. What sort of problems does this
actually cause?
FYI, many linux filesystems only have second resolution timestamps
and hence applications can't rely on sub-second timestamp resolution
to actually mean anything useful....
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2014-09-05 0:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 16:38 [PATCH] xfsrestore: use utimensat() to provide atime/mtime with ns resolution Brian Foster
2014-09-04 19:47 ` Eric Sandeen
2014-09-04 21:35 ` Brian Foster
2014-09-05 0:45 ` Dave Chinner [this message]
2014-09-05 1:04 ` Eric Sandeen
2014-09-05 1:24 ` Dave Chinner
2014-09-05 11:02 ` Brian Foster
2014-09-05 11:19 ` Greg Freemyer
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