linux-kernel - Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate super

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Message-ID: <4CE6818A.9020608@teksavvy.com>
Date:	Fri, 19 Nov 2010 08:54:18 -0500
From:	Mark Lord <kernel@...savvy.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	James Bottomley <James.Bottomley@...e.de>,
	Matthew Wilcox <matthew@....cx>,
	Josef Bacik <josef@...hat.com>,
	Lukas Czerner <lczerner@...hat.com>, tytso@....edu,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, sandeen@...hat.com
Subject: Re: [PATCH 1/2] fs: Do not dispatch FITRIM through separate super_operation

On 10-11-19 06:09 AM, Christoph Hellwig wrote:
> On Thu, Nov 18, 2010 at 04:37:34PM -0500, Mark Lord wrote:
>> Currently, I patch my kernels to remove the automatic online TRIMs.
>> Is there a knob somewhere for this in the later kernels?
>
> There is not automatic discard in any recent kernel.  You always need
> to mount with -o discard to enabled it.

Peachy.  Thanks, Christoph.

My 2-year old userspace here doesn't have "-o discard",
so I couldn't find it in the man pages etc.. thus my paranoia.  :)

Cheers
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