linux-kernel - Re: [patch 1/4] spinlock: lockbreak cleanup

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Message-Id: <1193925965.27652.284.camel@twins>
Date:	Thu, 01 Nov 2007 15:06:05 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andi Kleen <ak@...e.de>, Ingo Molnar <mingo@...e.hu>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	riel <riel@...hat.com>
Subject: Re: [patch 1/4] spinlock: lockbreak cleanup

On Thu, 2007-11-01 at 15:02 +0100, Nick Piggin wrote:

> Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to
> decouple it from the spinlock implementation, and make it typesafe (rwlocks
> do not have any need_lockbreak sites -- why do they even get bloated up
> with that break_lock then?).

IIRC Lee has a few patches floating about that do introduce lockbreak
stuff for rwlocks.


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