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Re: locking question: do_mmap(), do_munmap()

To: Alexander Viro <viro@math.psu.edu>
Subject: Re: locking question: do_mmap(), do_munmap()
From: Andrea Arcangeli <andrea@suse.de>
Date: Sat, 9 Oct 1999 18:01:27 +0200 (CEST)
cc: Manfred Spraul <manfreds@colorfullife.com>, linux-kernel@vger.rutgers.edu, "linux-mm@kvack.org" <linux-mm@kvack.org>
In-Reply-To: <Pine.GSO.4.10.9910090903530.14891-100000@weyl.math.psu.edu>
Sender: owner-linux-mm@kvack.org

On Sat, 9 Oct 1999, Alexander Viro wrote:

>do_munmap() doesn't need the big lock. do_mmap() callers should grab

Look the swapout path. Without the big kernel lock you'll free vmas under
swap_out().

	ftp://ftp.suse.com/pub/people/andrea/kernel-patches/pending-2.3.x/munmap-lock-1

Andrea

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Follow-Ups:
- Re: locking question: do_mmap(), do_munmap()
  - From: Manfred Spraul <manfreds@colorfullife.com>
- Re: locking question: do_mmap(), do_munmap()
  - From: "Stephen C. Tweedie" <sct@redhat.com>

References:
- Re: locking question: do_mmap(), do_munmap()
  - From: Alexander Viro <viro@math.psu.edu>

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