linux-kernel - Re: [PATCH 3/6] fs/ocfs2: Use DIV_ROUND

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Date:	Mon, 18 Feb 2008 11:36:11 -0800
From:	Mark Fasheh <mark.fasheh@...cle.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	kurt.hackel@...cle.com, ocfs2-devel@....oracle.com,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 3/6] fs/ocfs2: Use DIV_ROUND_UP

On Thu, Feb 14, 2008 at 04:15:17PM +0100, Julia Lawall wrote:
> From: Julia Lawall <julia@...u.dk>
> 
> The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
> (d)) but is perhaps more readable.
> 
> An extract of the semantic patch that makes this change is as follows:
> (http://www.emn.fr/x-info/coccinelle/)
> 
> // <smpl>
> @haskernel@
> @@
> 
> #include <linux/kernel.h>
> 
> @depends on haskernel@
> expression n,d;
> @@
> 
> (
> - (n + d - 1) / d
> + DIV_ROUND_UP(n,d)
> |
> - (n + (d - 1)) / d
> + DIV_ROUND_UP(n,d)
> )
> 
> @depends on haskernel@
> expression n,d;
> @@
> 
> - DIV_ROUND_UP((n),d)
> + DIV_ROUND_UP(n,d)
> 
> @depends on haskernel@
> expression n,d;
> @@
> 
> - DIV_ROUND_UP(n,(d))
> + DIV_ROUND_UP(n,d)
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@...u.dk>
Acked-by: Mark Fasheh <mark.fasheh@...cle.com>
	--Mark

--
Mark Fasheh
Principal Software Developer, Oracle
mark.fasheh@...cle.com
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