linux-kernel - Re: [0/3] Improve generic fls64 for 64-bit machines

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Message-ID: <20080321131046.GG27245@elte.hu>
Date:	Fri, 21 Mar 2008 14:10:51 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Alexander van Heukelum <heukelum@...lshack.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [0/3] Improve generic fls64 for 64-bit machines


* Alexander van Heukelum <heukelum@...lshack.com> wrote:

> This series of patches:
> 
> [1/3] adds __fls.h to asm-generic
> [2/3] modifies asm-*/bitops.h for 64-bit archs to implement __fls
> [3/3] modifies asm-generic/fls64.h to make use of __fls
> 
> I have compiled i386 and x86_64, and they generate the same code as 
> before the change. The changes to the other archs are a best effort. 
> Please comment.

i've applied #1 and #3 to x86.git/testing, to see how this works out on 
x86. But it looks good to me in general.

	Ingo
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