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From: Andi Kleen <ak@suse.de>
To: Nick Piggin <npiggin@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [rfc][patch 2/2] x86_64: FIFO ticket spinlocks
Date: Tue, 17 Jul 2007 16:25:42 +0200	[thread overview]
Message-ID: <200707171625.42235.ak@suse.de> (raw)
In-Reply-To: <20070716050134.GB19914@wotan.suse.de>



When you revamp everything I guess it would make the locks
easier to read to just put them into a .S file? They're
out of line anyways.

In general they look ok.

>  
>  static inline void __raw_spin_unlock(raw_spinlock_t *lock)
>  {
> -	asm volatile("movl $1,%0" :"=m" (lock->slock) :: "memory");
> +	__asm__ __volatile__(

Minor nit: please don't use these underlined keywords. They just look
ugly and asm volatile works as well.

-Andi

  parent reply	other threads:[~2007-07-17 14:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-16  4:59 [rfc][patch 1/2] spinlock: lockbreak cleanups Nick Piggin
2007-07-16  5:01 ` [rfc][patch 2/2] x86_64: FIFO ticket spinlocks Nick Piggin
2007-07-16  9:16   ` Alan Cox
2007-07-16  9:24     ` Nick Piggin
2007-07-16  9:26   ` Ingo Molnar
2007-07-16  9:45     ` Nick Piggin
2007-07-16  9:49       ` Ingo Molnar
2007-07-16 10:18         ` Nick Piggin
2007-07-17 14:25   ` Andi Kleen [this message]
2007-07-17 15:08     ` Nick Piggin

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