From: Hugh Dickins <hugh@veritas.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: akpm@osdl.org, linux-mm@kvack.org
Subject: Re: page_lock_anon_vma(): remove check for mapped page
Date: Mon, 27 Feb 2006 18:43:08 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.61.0602271839450.9471@goblin.wat.veritas.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0602271028240.3185@schroedinger.engr.sgi.com>
On Mon, 27 Feb 2006, Christoph Lameter wrote:
>
> The check_mapped can be done in a different way since there is no need
> for an rcu lock because we now have the requirement to hold
> mmap_sem for protection.
You're right, I hadn't thought of it that way round, you're
better off simply avoiding page_lock_anon_vma for your usage.
Acked-by: Hugh Dickins <hugh@veritas.com>
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prev parent reply other threads:[~2006-02-27 18:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-25 1:03 Christoph Lameter
2006-02-25 14:01 ` Hugh Dickins
2006-02-26 4:42 ` Hugh Dickins
2006-02-26 5:26 ` Christoph Lameter
2006-02-26 15:58 ` Hugh Dickins
2006-02-27 15:47 ` Christoph Lameter
2006-02-26 5:57 ` Christoph Lameter
2006-02-26 16:07 ` Hugh Dickins
2006-02-27 15:55 ` Christoph Lameter
2006-02-27 16:32 ` Hugh Dickins
2006-02-27 16:43 ` Christoph Lameter
2006-02-27 17:23 ` Hugh Dickins
2006-02-27 18:11 ` Christoph Lameter
2006-02-27 18:27 ` Hugh Dickins
2006-02-27 18:31 ` Christoph Lameter
2006-02-27 18:43 ` Hugh Dickins [this message]
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