linux-kernel - Re: [RFC PATCH] block: slightly optimize blkdev

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Message-ID: <4A60062E.8090406@kernel.org>
Date:	Fri, 17 Jul 2009 14:03:42 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Xiaotian Feng <dfeng@...hat.com>
CC:	axboe@...nel.dk, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] block: slightly optimize blkdev_ioctl BLKRA{SET,GET}

Xiaotian Feng wrote:
> Slightly optimize blkdev_ioctl by using shift instead of multiply
> and divide.
> 
> Signed-off-by: Xiaotian Feng <dfeng@...hat.com>

As other people have commented, this is unnecessary.  Let's leave it
to the compiler.

Thanks.

-- 
tejun
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