linux-kernel - Re: [PATCH 1/2] FRV: Implement atomic64

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Message-ID: <20552.1246469604@redhat.com>
Date:	Wed, 01 Jul 2009 18:33:24 +0100
From:	David Howells <dhowells@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	dhowells@...hat.com, mingo@...e.hu, akpm@...ux-foundation.org,
	paulus@...ba.org, arnd@...db.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] FRV: Implement atomic64_t

Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> > +#define atomic64_read(v)	((v)->counter)
> > +#define atomic64_set(v, i)	(((v)->counter) = (i))
> 
> These seem to be buggy.

Good point.  I should be doing inline asm with LDD and STD instructions.

David
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