linux-kernel - Re: [PATCH 08/12] rwsem: smaller wrappers around rwsem_down_failed

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Date:	Wed, 12 May 2010 19:54:33 -0700
From:	Michel Lespinasse <walken@...gle.com>
To:	David Howells <dhowells@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mike Waychison <mikew@...gle.com>,
	Suleiman Souhlal <suleiman@...gle.com>,
	Ying Han <yinghan@...gle.com>
Subject: Re: [PATCH 08/12] rwsem: smaller wrappers around rwsem_down_failed_common

On Wed, May 12, 2010 at 5:42 AM, David Howells <dhowells@...hat.com> wrote:
> Michel Lespinasse <walken@...gle.com> wrote:
>
>> Following change also enjoys having flags available in a register rather
>> than having to fish it out in the struct rwsem_waiter...
>
> So what?  It doesn't use flags in rwsem_down_failed_common().

I meant patch 10 wants to use the flags in order to know whether to
queue at the head or tail of the waiter list.

Apologies for the compile error, patches 8 and 10 used to be a single
change and were split off relatively late. :/

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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