linux-kernel - Re: running get_user_pages() from kernel thread

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Message-ID: <Pine.LNX.4.64.0906162158100.12770@sister.anvils>
Date:	Tue, 16 Jun 2009 22:02:48 +0100 (BST)
From:	Hugh Dickins <hugh.dickins@...cali.co.uk>
To:	Andrea Arcangeli <aarcange@...hat.com>
cc:	Rik van Riel <riel@...hat.com>, Izik Eidus <ieidus@...hat.com>,
	linux-kernel@...r.kernel.org, nickpiggin@...oo.com.au
Subject: Re: running get_user_pages() from kernel thread

On Tue, 16 Jun 2009, Andrea Arcangeli wrote:
> On Tue, Jun 16, 2009 at 08:45:05PM +0100, Hugh Dickins wrote:
> > liking the below better - what do you think?  If you approve, I'll send
> > it in to Andrew for mmotm: I can't quite justify it without KSM.
> 
> I think it's definitely better to fix gup to be safe from kernel
> thread even without KSM so this can go in mainline well before KSM.
> Unless gup requires a swapin fault it won't ever trigger.

Yes, you're right, it should go into 2.6.31, no reason not.

Hugh
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