From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 0275D6B004D for ; Sun, 16 Aug 2009 14:24:16 -0400 (EDT) Subject: Re: Discard support (was Re: [PATCH] swap: send callback when swap slot is freed) From: James Bottomley In-Reply-To: <4A884D9C.3060603@rtr.ca> References: <200908122007.43522.ngupta@vflare.org> <20090813151312.GA13559@linux.intel.com> <20090813162621.GB1915@phenom2.trippelsdorf.de> <87f94c370908131115r680a7523w3cdbc78b9e82373c@mail.gmail.com> <3e8340490908131354q167840fcv124ec56c92bbb830@mail.gmail.com> <4A85E0DC.9040101@rtr.ca> <20090814234539.GE27148@parisc-linux.org> <1250341176.4159.2.camel@mulgrave.site> <4A86B69C.7090001@rtr.ca> <1250344518.4159.4.camel@mulgrave.site> <20090816150530.2bae6d1f@lxorguk.ukuu.org.uk> <20090816083434.2ce69859@infradead.org> <1250437927.3856.119.camel@mulgrave.site> <4A8834B6.2070104@rtr.ca> <1250446047.3856.273.camel@mulgrave.site> <4A884D9C.3060603@rtr.ca> Content-Type: text/plain Date: Sun, 16 Aug 2009 13:24:12 -0500 Message-Id: <1250447052.3856.294.camel@mulgrave.site> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Mark Lord Cc: Arjan van de Ven , Alan Cox , Chris Worley , Matthew Wilcox , Bryan Donlan , david@lang.hm, Greg Freemyer , Markus Trippelsdorf , Matthew Wilcox , Hugh Dickins , Nitin Gupta , Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, Linux RAID List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org