linux-kernel - Re: [patch 2/3] Directed yield: direct yield of spinlocks for powerpc.

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Message-ID: <17682.34548.763586.32814@cargo.ozlabs.ibm.com>
Date:	Thu, 21 Sep 2006 22:35:00 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	akpm@...l.org, mingo@...e.hu
Subject: Re: [patch 2/3] Directed yield: direct yield of spinlocks for powerpc.

Martin Schwidefsky writes:

> Powerpc already has a directed yield for CONFIG_PREEMPT="n". To make
> it work with CONFIG_PREEMPT="y" as well the _raw_{spin,read,write}_relax
> primitives need to be defined to call __spin_yield() for spinlocks and
> __rw_yield() for rw-locks.

Acked-by: Paul Mackerras <paulus@...ba.org>
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