From mboxrd@z Thu Jan  1 00:00:00 1970
Subject: Re: [RFC] another crazy idea to get rid of mmap_sem in faults
From: Peter Zijlstra <peterz@infradead.org>
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Date: Mon, 01 Dec 2008 16:33:30 +0100
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To: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Christoph Lameter <cl@linux-foundation.org>, Nick Piggin <nickpiggin@yahoo.com.au>, Linus Torvalds <torvalds@linux-foundation.org>, hugh <hugh@veritas.com>, Paul E McKenney <paulmck@linux.vnet.ibm.com>, Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@elte.hu>, linux-mm <linux-mm@kvack.org>
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On Mon, 2008-12-01 at 10:27 -0500, Lee Schermerhorn wrote:
> mlock(), mprotect() and mbind() [others?] can also split/merge vmas
> under exclusive mmap_sem to accomodate the changed attributes.

Right, all those should be OK as described in the Split/Merge scenarios.

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