linux-kernel - Re: [Fwd: [-mm] Add an owner to the mm

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Message-ID: <6599ad830804151113i73010bb4x48e658195f295d41@mail.gmail.com>
Date:	Tue, 15 Apr 2008 11:13:19 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Oleg Nesterov" <oleg@...sign.ru>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	balbir@...ux.vnet.ibm.com, serue@...ibm.com,
	penberg@...helsinki.fi, linux-kernel@...r.kernel.org
Subject: Re: [Fwd: [-mm] Add an owner to the mm_struct (v9)]

On Tue, Apr 15, 2008 at 10:13 AM, Oleg Nesterov <oleg@...sign.ru> wrote:
>
>  Let's suppose the process with a lot of threads does exit_group() and nobody
>  else uses this ->mm. How many time we will re-assign mm->owner and iterate
>  over the all threads in system ?
>

In general we won't get to the third loop, since one of the first two
loops (children or siblings) will find another mm user.

Paul
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