linux-kernel - Re: [PATCH] Fix get

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Message-ID: <11476.1173206866@redhat.com>
Date:	Tue, 06 Mar 2007 18:47:46 +0000
From:	David Howells <dhowells@...hat.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	torvalds@...l.org, akpm@...l.org, benh@...nel.crashing.org,
	linux-kernel@...r.kernel.org, johannes@...solutions.net
Subject: Re: [PATCH] Fix get_order() [try #2] 

H. Peter Anvin <hpa@...or.com> wrote:

> Why not just make it ((n) < 1 ? 0 : ...) and make it well-defined for
> n == 0?

Because log2(0) is -INF or mathematically undefined or something isn't it?

David
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