From: Christoph Hellwig <hch@infradead.org>
To: Mark Lord <liml@rtr.ca>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-fsdevel@vger.kernel.org, jens.axboe@oracle.com,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
xfs@oss.sgi.com
Subject: Re: [PATCH, RFC] xfs: batched discard support
Date: Sun, 16 Aug 2009 09:53:15 -0400 [thread overview]
Message-ID: <20090816135315.GA25251@infradead.org> (raw)
In-Reply-To: <4A8802F3.6010908@rtr.ca>
On Sun, Aug 16, 2009 at 09:00:35AM -0400, Mark Lord wrote:
> Okay, this gives me ENOSYS now --> discard/trim support is missing from
> the lower layers.
ENOSYS or EOPNOTSUPP?
> What other patches do I need to make this work?
>
> The latest from Matthew's discard tree (May 2009) don't appear to be sufficient,
> even after updating them for 2.6.31-rc6.
Hmm. That was kinda the reason why I didn't want to post stuff yet. In
current mainline only MTD implements the prepare_discard_fn, and we'll
need it implemented and working. I think Matthews patches should be
sufficient, unless they have some ATA revision check to not issue the
TRIM for your device.
next prev parent reply other threads:[~2009-08-16 13:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-16 0:47 [PATCH, RFC] xfs: batched discard support Christoph Hellwig
2009-08-16 1:35 ` Mark Lord
2009-08-16 2:19 ` Mark Lord
2009-08-16 2:25 ` Christoph Hellwig
2009-08-16 2:49 ` Mark Lord
2009-08-16 3:25 ` Mark Lord
2009-08-16 13:00 ` Mark Lord
2009-08-16 13:53 ` Christoph Hellwig [this message]
2009-08-16 13:59 ` Mark Lord
2009-08-16 14:06 ` Mark Lord
2009-08-16 14:23 ` Christoph Hellwig
2009-08-16 14:26 ` Mark Lord
2009-08-19 20:39 ` Ingo Molnar
2009-08-20 1:05 ` Christoph Hellwig
2009-08-20 1:10 ` Jamie Lokier
2009-08-20 1:38 ` Douglas Gilbert
2009-08-20 1:38 ` Mark Lord
2009-08-21 12:46 ` Ingo Molnar
2009-08-20 1:39 ` Mark Lord
2009-08-20 13:48 ` Ric Wheeler
2009-08-20 14:38 ` Mark Lord
2009-08-20 14:42 ` Ric Wheeler
2009-08-20 17:19 ` Greg Freemyer
2009-08-20 14:42 ` James Bottomley
2009-08-20 15:43 ` Rolf Eike Beer
2009-08-20 17:00 ` Ric Wheeler
2009-08-20 14:58 ` Douglas Gilbert
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