linux-kernel - Re: [RFC][PATCH] module: Optimize __module

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Message-ID: <20150226194516.GA21418@twins.programming.kicks-ass.net>
Date:	Thu, 26 Feb 2015 20:45:16 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org, oleg@...hat.com,
	rusty@...tcorp.com.au, mingo@...nel.org
Subject: Re: [RFC][PATCH] module: Optimize __module_address() using a latched
 RB-tree

On Thu, Feb 26, 2015 at 11:41:44AM -0800, Paul E. McKenney wrote:
> Or just have the *_ONCE() calls in the single version.  I bet that there
> is no visible performance loss.

I'll go play with that tomorrow, see what GCC makes of it.
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