linux-kernel - Re: [PATCH v4 0/2] rcu: uninline rcu_lock_acquire() and rcu_lock

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Message-ID: <20140630202420.GG4603@linux.vnet.ibm.com>
Date:	Mon, 30 Jun 2014 13:24:21 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Josh Triplett <josh@...htriplett.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/2] rcu: uninline rcu_lock_acquire() and
 rcu_lock_release()

On Mon, Jun 30, 2014 at 06:18:37PM +0200, Oleg Nesterov wrote:
> Hello,
> 
> May be correct this time ;) Based on paulmck/linux-rcu.git rcu/next.
> 
> 2/2 is new and hopefully trivial. But! the numbers look suspiciously
> good, I do not understand where does the difference come from...

Probably from rcu_dereference_raw() and rcu_dereference_check(..., 1).  ;-)

Queued and kicked off testing, both mine and (indirectly) Fengguang's.

							Thanx, Paul

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