| To: | Brian Foster <bfoster@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH v2] xfsrestore: use utimensat() to provide atime/mtime with ns resolution |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Sat, 13 Sep 2014 12:47:13 -0700 |
| Cc: | xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <1409866939-1480-1-git-send-email-bfoster@xxxxxxxxxx> |
| References: | <1409866939-1480-1-git-send-email-bfoster@xxxxxxxxxx> |
| User-agent: | Mutt/1.5.23 (2014-03-12) |
On Thu, Sep 04, 2014 at 05:42:19PM -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. > > Add the associated configure checks for and use utimensat() when > available to restore timestamps with nanosecond resolution. Create a new > helper to facilitate conditional support for utimensat(). > > Signed-off-by: Brian Foster <bfoster@xxxxxxxxxx> Looks good to me, Reviewed-by: Christoph Hellwig <hch@xxxxxx> |
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