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: <yq1boziz80x.fsf@sermon.lab.mkp.net>
Date:	Wed, 04 May 2011 13:32:14 -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> Also I am not sure why this changed discard_max_bytes from
Lukas> 4294966784 to 2147450880 in my case, that does not seem
Lukas> right...lsblk in the first place apparently overflowed.

2G is correct. The relevant libata patch was missing from the series I
submitted during the merge window and I don't see it in the archives. It
was at the end of the stack so I guess I had an off-by-one in my commit
range...

-- 
Martin K. Petersen	Oracle Linux Engineering
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