linux-ext4 - Re: [PATCH] ext4: stop issuing discards if not supported by device

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Message-ID: <20100408005812.GA23188@thunk.org>
Date:	Wed, 7 Apr 2010 20:58:12 -0400
From:	tytso@....edu
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] ext4: stop issuing discards if not supported by device

On Wed, Mar 10, 2010 at 10:54:03AM -0600, Eric Sandeen wrote:
> Turn off issuance of discard requests if the device does
> not support it - similar to the action we take for barriers.
> This will save a little computation time if a non-discardable
> device is mounted with -o discard, and also makes it obvious
> that it's not doing what was asked at mount time ...
> 
> Signed-off-by: Eric Sandeen <sandeen@...hat.com>

Added to the ext4 patch queue, thanks.

					- Ted
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