linux-kernel - Re: [PATCH] introduce get_mm_hiwater_xxx(), fix taskstats->hiwater

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Message-ID: <Pine.LNX.4.64.0812060950120.22390@blonde.anvils>
Date:	Sat, 6 Dec 2008 09:56:19 +0000 (GMT)
From:	Hugh Dickins <hugh@...itas.com>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
cc:	Jay Lan <jlan@....com>, Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Pirko <jpirko@...hat.com>, linux-kernel@...r.kernel.org,
	Jonathan Lim <jlim@....com>
Subject: Re: [PATCH] introduce get_mm_hiwater_xxx(), fix taskstats->hiwater_xxx
 accounting

On Sat, 6 Dec 2008, Balbir Singh wrote:
> 
> Yes, true and getdelays can display all the exported information.
> 
> The race does seem concerning, I would vote for keeping the update in
> there and disabling preemption around the update, so that hiwater
> cannot swing back and forth.

??  Oleg is _fixing_ a race by removing the update from do_exit();
and he is fixing the way the hiwater info was collected in tsacct.c.

Hugh
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