linux-kernel - Re: [PATCH -v4 4/5] x86,smp: keep spinlock delay values per hashed spinlock address

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Message-ID: <CANN689EAykWXS4QTVDKaCb4in_2b_Bqyoh-xg=EbX7ivOPry4w@mail.gmail.com>
Date:	Sun, 27 Jan 2013 05:04:40 -0800
From:	Michel Lespinasse <walken@...gle.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	linux-kernel@...r.kernel.org, aquini@...hat.com,
	eric.dumazet@...il.com, lwoodman@...hat.com, knoel@...hat.com,
	chegu_vinod@...com, raghavendra.kt@...ux.vnet.ibm.com,
	mingo@...hat.com
Subject: Re: [PATCH -v4 4/5] x86,smp: keep spinlock delay values per hashed
 spinlock address

On Fri, Jan 25, 2013 at 11:18 AM, Rik van Riel <riel@...hat.com> wrote:
> +       u32 delay = (ent->hash == hash) ? ent->delay : MIN_SPINLOCK_DELAY;

I still don't like the reseting of delay to MIN_SPINLOCK_DELAY when
there is a hash collision.

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