linux-kernel - Re: [RFC][PATCH 0/7] locking: qspinlock

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Message-ID: <20140312062436.GI30956@twins.programming.kicks-ass.net>
Date:	Wed, 12 Mar 2014 07:24:36 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Waiman Long <waiman.long@...com>
Cc:	Ingo Molnar <mingo@...nel.org>, arnd@...db.de,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, rostedt@...dmis.org,
	akpm@...ux-foundation.org, walken@...gle.com, andi@...stfloor.org,
	riel@...hat.com, paulmck@...ux.vnet.ibm.com,
	torvalds@...ux-foundation.org, oleg@...hat.com
Subject: Re: [RFC][PATCH 0/7] locking: qspinlock

On Tue, Mar 11, 2014 at 11:17:46PM -0400, Waiman Long wrote:
> Except that I do a single atomic short integer write to switch the bits
> instead of 2 byte write.

D'0h why didn't I think of that. A single short write is much better
than the 2 byte writes.

In any case; can you try and keep the structure in this patch-set if you
post another version? It takes a lot of effort to unravel your
all-in-one patch.
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