linux-ext4 - Re: [dm-devel] do not disable ext4 discards on first discard failure? [was: Re: dm snapshot: ignore discards issued to the snapshot-origin target]

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Message-ID: <yq139kx40o4.fsf@sermon.lab.mkp.net>
Date:	Mon, 02 May 2011 10:50:03 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Lukas Czerner <lczerner@...hat.com>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Christoph Hellwig <hch@...radead.org>,
	device-mapper development <dm-devel@...hat.com>,
	Alasdair G Kergon <agk@...hat.com>, sandeen@...hat.com,
	Mike Snitzer <snitzer@...hat.com>, DarkNovaNick@...il.com,
	linux-lvm@...hat.com, linux-ext4@...r.kernel.org
Subject: Re: [dm-devel] do not disable ext4 discards on first discard failure? [was: Re: dm snapshot: ignore discards issued to the snapshot-origin target]

>>>>> "Lukas" == Lukas Czerner <lczerner@...hat.com> writes:

Lukas> So I assume it got fixes just recently ?. I'll give it a try with
Lukas> the up-to-date kernel.

Ok, turns out the SSD I used for the test predates advertising
TRIM. Beats me why this is broken for the zeroes/!zeroes case. I'll get
it fixed...

-- 
Martin K. Petersen	Oracle Linux Engineering
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