linux-kernel - Re: [PATCH 1/2] MN10300: Move asm-arm/cnt32_to

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Message-ID: <1703.1222986215@redhat.com>
Date:	Thu, 02 Oct 2008 23:23:35 +0100
From:	David Howells <dhowells@...hat.com>
To:	Nicolas Pitre <nico@....org>
Cc:	dhowells@...hat.com, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	torvalds@...l.org, akpm@...ux-foundation.org,
	linux-am33-list@...hat.com, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] MN10300: Move asm-arm/cnt32_to_63.h to include/linux/

Nicolas Pitre <nico@....org> wrote:

> Oh, that's a possibility.  In that case __m_cnt_hi will be reverted to a 
> previous state just like if cnt32_to_63() has not been called yet since 
> the new half period.  And a subsequent call will fix that again.

Surely that's not good enough.  There's a 50% chance that reversion to a
previous state will result in an extra increment of the __m_cnt_hi on the next
call.

David
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