From: Tejun Heo <tj@kernel.org>
To: Xiaotian Feng <dfeng@redhat.com>
Cc: axboe@kernel.dk, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] block: slightly optimize blkdev_ioctl BLKRA{SET,GET}
Date: Fri, 17 Jul 2009 14:03:42 +0900 [thread overview]
Message-ID: <4A60062E.8090406@kernel.org> (raw)
In-Reply-To: <1247580737-24713-1-git-send-email-dfeng@redhat.com>
Xiaotian Feng wrote:
> Slightly optimize blkdev_ioctl by using shift instead of multiply
> and divide.
>
> Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
As other people have commented, this is unnecessary. Let's leave it
to the compiler.
Thanks.
--
tejun
next prev parent reply other threads:[~2009-07-17 5:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1247572395-24021-1-git-send-email-dfeng@redhat.com>
2009-07-14 14:12 ` [RFC PATCH] block: slightly optimize blkdev_ioctl BLKRA{SET,GET} Xiaotian Feng
2009-07-17 5:03 ` Tejun Heo [this message]
2009-07-14 11:59 Xiaotian Feng
2009-07-14 13:48 ` Américo Wang
2009-07-14 14:08 ` Johannes Weiner
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