linux-ext4 - Re: [PATCH v2] ext4: Avoid underflow of in ext4_trim

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Message-ID: <20121022043721.GD4768@thunk.org>
Date:	Mon, 22 Oct 2012 00:37:21 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Lukas Czerner <lczerner@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH v2] ext4: Avoid underflow of in ext4_trim_fs()

On Thu, Oct 11, 2012 at 10:34:45AM +0200, Lukas Czerner wrote:
> Currently if len argument in ext4_trim_fs() is smaller than one block,
> the 'end' variable underflow. Avoid that by returning EINVAL if len is
> smaller than file system block.
> 
> Also remove useless unlikely().
> 
> Signed-off-by: Lukas Czerner <lczerner@...hat.com>

Thanks, applied.

						- Ted
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