linux-kernel - Re: [PATCH] acct_arg_size: ptl is no longer needed for add_mm

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Message-ID: <20110714144420.38c3d539@mfleming-mobl1.ger.corp.intel.com>
Date:	Thu, 14 Jul 2011 14:44:20 +0100
From:	Matt Fleming <matt.fleming@...ux.intel.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] acct_arg_size: ptl is no longer needed for
 add_mm_counter()

On Wed, 13 Jul 2011 21:39:35 +0200
Oleg Nesterov <oleg@...hat.com> wrote:

> acct_arg_size() takes ->page_table_lock around add_mm_counter()
> if !SPLIT_RSS_COUNTING. This is no needed after 172703b0
> "mm: delete non-atomic mm counter implementation".
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Oops, good catch. Thanks!

Reviewed-by: Matt Fleming <matt.fleming@...ux.intel.com>
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