[linux-lvm] Snapshot rollback
Eric Brunson
brunson at brunson.com
Wed Feb 24 22:46:09 UTC 2010
On 09/23/2009 03:40 PM, Alasdair G Kergon wrote:
> On Wed, Sep 23, 2009 at 03:04:22PM -0600, Eric Brunson wrote:
>
>> I remember seeing somewhere discussion of adding the ability to roll
>> back to a snapshot. I think of how cool this would be about ever six
>> months, usually coinciding with an impending Fedora release. ;-)
>>
> The developers are just starting to submit their patch sequence to the
> development mailing lists (dm-devel and lvm-devel) for review. So
> that's targetting linux-next in the next few weeks ready for the 2.6.33
> kernel.
>
>
From the newly released 2.6.33 kernel changelog, does this mean what I
think it means?
commit 53365383c4667aba55385cd1858582c19a7a8a36
Merge: 51b736b d2fdb77
Author: Linus Torvalds<torvalds at linux-foundation.org>
Date: Tue Dec 15 09:12:01 2009 -0800
Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (80 commits)
dm snapshot: use merge origin if snapshot invalid
dm snapshot: report merge failure in status
dm snapshot: merge consecutive chunks together
dm snapshot: trigger exceptions in remaining snapshots during merge
dm snapshot: delay merging a chunk until writes to it complete
dm snapshot: queue writes to chunks being merged
dm snapshot: add merging
dm snapshot: permit only one merge at once
dm snapshot: support barriers in snapshot merge target
dm snapshot: avoid allocating exceptions in merge
dm snapshot: rework writing to origin
dm snapshot: add merge target
dm exception store: add merge specific methods
dm snapshot: create function for chunk_is_tracked wait
dm snapshot: make bio optional in __origin_write
...
If it does, then I'm very excited. :-)
e.
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