linux-kernel - Re: Discard support (was Re: [PATCH] swap: send callback when swap slot is freed)

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Message-Id: <1250447052.3856.294.camel@mulgrave.site>
Date:	Sun, 16 Aug 2009 13:24:12 -0500
From:	James Bottomley <James.Bottomley@...e.de>
To:	Mark Lord <liml@....ca>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Chris Worley <worleys@...il.com>,
	Matthew Wilcox <matthew@....cx>,
	Bryan Donlan <bdonlan@...il.com>, david@...g.hm,
	Greg Freemyer <greg.freemyer@...il.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Nitin Gupta <ngupta@...are.org>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-scsi@...r.kernel.org, linux-ide@...r.kernel.org,
	Linux RAID <linux-raid@...r.kernel.org>
Subject: Re: Discard support (was Re: [PATCH] swap: send callback when swap
 slot is freed)

On Sun, 2009-08-16 at 14:19 -0400, Mark Lord wrote:
> James Bottomley wrote:
> >
> > Heh, OS writers not having access to the devices is about par for the
> > current course.
> ..
> 
> Pity the Linux Foundation doesn't simply step in and supply hardware
> to us for new tech like this.  Cheap for them, expensive for folks like me.

Um, to give a developer a selection of manufacturers' SSDs at retail
prices, you're talking several thousand dollars  ... in these lean
times, that would be two or three developers not getting travel
sponsorship per chosen SSD recipient.  It's not a worthwhile tradeoff.

The best the LF can likely do is try to explain to the manufacturers
that handing out samples at linux conferences (like plumbers) is in
their own interests.  It can also manage the handout if necessary
through its HW lending library.

James


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