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Date: Sun, 16 Aug 2009 22:03:24 -0400
From: Mark Lord <liml@rtr.ca>
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To: Chris Worley <worleys@gmail.com>
Cc: Greg Freemyer <greg.freemyer@gmail.com>, Matthew Wilcox <matthew@wil.cx>,
       Bryan Donlan <bdonlan@gmail.com>, david@lang.hm,
       Markus Trippelsdorf <markus@trippelsdorf.de>,
       Matthew Wilcox <willy@linux.intel.com>,
       Hugh Dickins <hugh.dickins@tiscali.co.uk>,
       Nitin Gupta <ngupta@vflare.org>, Ingo Molnar <mingo@elte.hu>,
       Peter Zijlstra <peterz@infradead.org>, linux-kernel@vger.kernel.org,
       linux-mm@kvack.org, linux-scsi@vger.kernel.org,
       linux-ide@vger.kernel.org, Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Discard support (was Re: [PATCH] swap: send callback when swap
 	slot is freed)
References: <200908122007.43522.ngupta@vflare.org>	 <alpine.DEB.1.10.0908131342460.28013@asgard.lang.hm>	 <3e8340490908131354q167840fcv124ec56c92bbb830@mail.gmail.com>	 <4A85E0DC.9040101@rtr.ca>	 <f3177b9e0908141621j15ea96c0s26124d03fc2b0acf@mail.gmail.com>	 <20090814234539.GE27148@parisc-linux.org>	 <f3177b9e0908141719s658dc79eye92ab46558a97260@mail.gmail.com>	 <87f94c370908141730y3ddcb7bbj65d24b612fc0e96d@mail.gmail.com>	 <f3177b9e0908141738n5f99b85dx3de0f620180a4b46@mail.gmail.com>	 <4A86B605.5060701@rtr.ca> <f3177b9e0908161552o37c8f3b9k55806dd26864659@mail.gmail.com>
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Chris Worley wrote:
..
> The OS should not assume a dumb algorithm on the part of the drive.
..

Welcome to the Real World.