From: Christoph Hellwig <hch@infradead.org>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
james.bottomley@hansenpartnership.com, willy@wil.cx,
jgarzik@pobox.com, sandeen@redhat.com, rwheeler@redhat.com,
linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: Thin provisioning fixes
Date: Thu, 26 Nov 2009 06:05:45 -0500 [thread overview]
Message-ID: <20091126110545.GA364@infradead.org> (raw)
In-Reply-To: <20091126110157.GV8742@kernel.dk>
On Thu, Nov 26, 2009 at 12:01:57PM +0100, Jens Axboe wrote:
> I was waiting for the discussion to settle and a repost. Let me know if
> I should just pick up the current #1.
As far as I'm concerned the discussion was just about the example use
case Martin mentioned. Exposing wether a device zeroes discarded blocks
is a good thing in general.
Note that we might have to add blacklists for this in libata pretty soon
as the OCZ Vertex seems to get it wrong, but that's material for another
patch not touching the block layer..
next prev parent reply other threads:[~2009-11-26 11:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-21 2:45 Thin provisioning fixes Martin K. Petersen
2009-11-21 2:45 ` [PATCH 1/4] block: Allow devices to indicate whether discarded blocks are zeroed Martin K. Petersen
2009-11-21 10:13 ` Christoph Hellwig
2009-11-21 19:58 ` Matthew Wilcox
2009-11-22 2:43 ` Mark Lord
2009-11-23 16:37 ` Ric Wheeler
2009-11-23 16:54 ` Greg Freemyer
2009-11-23 17:02 ` Ric Wheeler
2009-11-23 17:03 ` Christoph Hellwig
2009-11-23 17:50 ` Eric Sandeen
2009-11-23 17:05 ` Christoph Hellwig
2009-11-21 12:50 ` Ric Wheeler
2009-11-21 20:17 ` Martin K. Petersen
2009-11-21 2:45 ` [PATCH 2/4] sd: WRITE SAME(16) / UNMAP support Martin K. Petersen
2009-11-21 2:45 ` [PATCH 3/4] libata: Report zeroed read after Trim and max discard size Martin K. Petersen
2009-11-21 10:49 ` Christoph Hellwig
2009-11-21 20:16 ` Martin K. Petersen
2009-11-24 14:35 ` Christoph Hellwig
2009-11-24 15:20 ` Mark Lord
2009-11-24 15:21 ` Christoph Hellwig
2009-11-21 2:45 ` [PATCH 4/4] libata: Fix garbled Trim payload Martin K. Petersen
2009-11-21 10:47 ` Christoph Hellwig
2009-11-21 19:50 ` Martin K. Petersen
2009-11-21 4:56 ` Thin provisioning fixes Eric Sandeen
2009-11-21 6:08 ` Martin K. Petersen
2009-11-21 6:55 ` Martin K. Petersen
2009-11-26 10:59 ` Christoph Hellwig
2009-11-26 11:01 ` Jens Axboe
2009-11-26 11:05 ` Christoph Hellwig [this message]
2009-11-26 15:13 ` Mark Lord
2009-11-26 15:14 ` Mark Lord
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