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From: Andi Kleen <ak@suse.de>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 10/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to x86_64
Date: 12 Feb 2007 12:35:47 +0100	[thread overview]
Message-ID: <p737iunhalo.fsf@bingen.suse.de> (raw)
In-Reply-To: <11712214703522-git-send-email-mathieu.desnoyers@polymtl.ca>

Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> writes:
>  
>  /**
> @@ -402,7 +405,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t *v)
>   */
>  #define atomic_add_unless(v, a, u)				\
>  ({								\
> -	int c, old;						\
> +	__typeof__((v)->counter) c, old;			\

This change seems useless. Please drop.

In general you should enforce atomic_t vs atomic64_t types on x86, otherwise
people will write code that won't compile on other architectures 
that have truly different implementations.

I would suggest using inlines.

-Andi

  reply	other threads:[~2007-02-12 10:35 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-11 19:17 [PATCH 00/10] atomic.h : standardizing atomic primitives Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 01/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to alpha Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 02/10] atomic.h : Complete atomic_long operations in asm-generic Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 03/10] atomic.h : i386 type safety fix Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 04/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to ia64 Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 05/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to mips Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 06/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to parisc Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 07/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to powerpc Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 08/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to sparc64 Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 09/10] atomic.h : Add atomic64_xchg to s390 Mathieu Desnoyers
2007-02-11 19:17 ` [PATCH 10/10] atomic.h : Add atomic64 cmpxchg, xchg and add_unless to x86_64 Mathieu Desnoyers
2007-02-12 11:35   ` Andi Kleen [this message]
2007-02-12 16:43     ` Mathieu Desnoyers
2007-02-12 16:49       ` [PATCH] atomic.h : atomic_add_unless as inline. Remove system.h atomic.h circular dependency Mathieu Desnoyers

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