From: Joe Thornber <thornber@redhat.com>
To: device-mapper development <dm-devel@redhat.com>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>,
linux-kernel@vger.kernel.org
Subject: Re: [dm-devel] dm-cache not writing out cache metadata at reboot?
Date: Fri, 10 May 2013 11:05:21 +0100 [thread overview]
Message-ID: <20130510100520.GD20880@debian> (raw)
In-Reply-To: <20130508220526.GA24132@redhat.com>
On Wed, May 08, 2013 at 06:05:26PM -0400, Mike Snitzer wrote:
> I'll defer to Joe on this but I think sync_metadata() is pretty heavy to
> be doing every 'dmsetup info'. BTW, with just dm_cache_commit() the
> superblock fields aren't stale; only the on-disk hints are.
Agreed, the hints are v. expensive to write.
prev parent reply other threads:[~2013-05-10 10:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-08 21:48 dm-cache not writing out cache metadata at reboot? Darrick J. Wong
2013-05-08 22:05 ` Mike Snitzer
2013-05-08 23:23 ` Darrick J. Wong
2013-05-09 20:36 ` Darrick J. Wong
2013-05-09 20:44 ` [PATCH 1/2] dmcache: flush superblock stats when retrieving status info Darrick J. Wong
2013-05-10 10:10 ` Joe Thornber
2013-05-10 12:53 ` Mike Snitzer
2013-05-09 20:47 ` dm-cache not writing out cache metadata at reboot? Mike Snitzer
2013-05-09 20:47 ` [PATCH 2/2] dmcache: Implement a flush message Darrick J. Wong
2013-05-10 10:22 ` [dm-devel] " Joe Thornber
2013-05-10 17:51 ` Darrick J. Wong
2013-05-11 15:25 ` Mike Snitzer
2013-05-13 12:04 ` Peter Rajnoha
2013-05-13 21:36 ` [dm-devel] " Darrick J. Wong
2013-05-10 10:05 ` Joe Thornber [this message]
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