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From: Ingo Molnar <mingo@elte.hu>
To: Alexander van Heukelum <heukelum@mailshack.com>
Cc: Alexander van Heukelum <heukelum@fastmail.fm>,
	Andi Kleen <andi@firstfloor.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: Optimize find_next_(zero_)bit for small constant-size bitmaps
Date: Tue, 11 Mar 2008 16:23:03 +0100	[thread overview]
Message-ID: <20080311152303.GA21530@elte.hu> (raw)
In-Reply-To: <20080311151719.GA15313@mailshack.com>


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

> > > +#endif /* CONFIG_GENERIC_FIND_NEXT_BIT */
> > 
> > there should be an #else here i think, which maps find_next_bit to 
> > __find_next_bit / etc.
> 
> No, that is intentional: architectures are expected to either set 
> CONFIG_GENERIC_FIND_NEXT_BIT, or provide their own implementation of 
> find_next_bit.

indeed, you are right.

> This version runs fine on qemu.

great - i've queued it up into x86.git.

	Ingo

  parent reply	other threads:[~2008-03-11 15:23 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-09 20:01 [PATCH] x86: Change x86 to use generic find_next_bit Alexander van Heukelum
2008-03-09 20:10 ` Ingo Molnar
2008-03-09 21:03   ` Andi Kleen
2008-03-09 21:32     ` Andi Kleen
2008-03-09 21:13   ` Alexander van Heukelum
2008-03-10  6:29     ` Ingo Molnar
2008-03-09 20:11 ` Ingo Molnar
2008-03-09 20:31   ` Alexander van Heukelum
2008-03-09 20:51     ` Ingo Molnar
2008-03-09 21:29       ` Andi Kleen
2008-03-10 23:17       ` [RFC/PATCH] x86: Optimize find_next_(zero_)bit for small constant-size bitmaps Alexander van Heukelum
2008-03-11  9:56         ` Ingo Molnar
2008-03-11 15:17           ` [PATCH] " Alexander van Heukelum
2008-03-11 15:22             ` [RFC] non-x86: " Alexander van Heukelum
2008-03-11 15:23             ` Ingo Molnar [this message]
2008-03-09 20:28 ` [PATCH] x86: Change x86 to use generic find_next_bit Andi Kleen
2008-03-09 21:31 ` Andi Kleen
2008-03-13 12:44 ` Aneesh Kumar K.V
2008-03-13 14:27   ` Alexander van Heukelum

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