----- Original Message -----
From: "Dmitry Morozovsky" <ma...@rinet.ru>
On Thu, 21 Mar 2013, Steven Hartland wrote:
Author: smh
Date: Thu Mar 21 09:34:41 2013
New Revision: 248572
URL: http://svnweb.freebsd.org/changeset/base/248572
Log:
Add TRIM support for L2ARC.
This adds TRIM support to cache vdevs. When ARC buffers are removed
from the L2ARC in arc_hdr_destroy(), arc_release() or l2arc_evict(),
the size previously occupied by the buffer gets scheduled for TRIMming.
As always, actual TRIMs are only issued to the L2ARC after
txg_trim_limit.
Reviewed by: pjd (mentor)
Approved by: pjd (mentor)
Obtained from:
https://github.com/dechamps/zfs/commit/31aae373994fd112256607edba7de2359da3e9dc
MFC after: 2 weeks
Wow!
Thank you very much.
(I possibly missed -- when did TRIM support for regular ZFS MFCed to stable/9?)
We've been doing extensive testing in production of ZFS TRIM and following this
latest set of patches I intend to get TRIM MFC'ed to stable-8 & stable-9 baring
any objections.
Regards
Steve
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