From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Hugh Dickins <hugh@veritas.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@osdl.org>,
David Howells <dhowells@redhat.com>,
Christoph Lameter <christoph@lameter.com>,
Martin Bligh <mbligh@google.com>, Nick Piggin <npiggin@suse.de>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [PATCH] mm: tracking dirty pages -v6
Date: Thu, 08 Jun 2006 15:02:02 +0200 [thread overview]
Message-ID: <1149771723.20886.10.camel@lappy> (raw)
In-Reply-To: <1149770654.4408.71.camel@lappy>
If this one still has some problems there is on more thing we could try
before going back to the old way of doing things.
I found this 'gem' in the drm code:
vma->vm_page_prot =
__pgprot(pte_val
(pte_wrprotect
(__pte(pgprot_val(vma->vm_page_prot)))));
which does exactly what is needed.
OTOH, my alternate version of the mprotect fix leaves dirty pages
writable, which saves a few faults.
Peter
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next prev parent reply other threads:[~2006-06-08 13:02 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-25 13:55 [PATCH 0/3] mm: tracking dirty pages -v5 Peter Zijlstra
2006-05-25 13:55 ` [PATCH -1/3] mm: page_mkwrite Peter Zijlstra
2006-05-25 13:55 ` [PATCH 1/3] mm: tracking shared dirty pages Peter Zijlstra
2006-05-25 16:21 ` Christoph Lameter
2006-05-25 17:00 ` Peter Zijlstra
2006-05-25 17:03 ` Christoph Lameter
2006-05-25 16:27 ` Christoph Lameter
2006-05-25 17:03 ` Peter Zijlstra
2006-05-25 17:06 ` Christoph Lameter
2006-05-26 2:28 ` Jeff Anderson-Lee
2006-05-26 2:33 ` Christoph Lameter
2006-05-26 14:33 ` David Howells
2006-05-26 15:39 ` Christoph Lameter
2006-05-30 8:00 ` David Howells
2006-05-30 15:38 ` Christoph Lameter
2006-05-30 16:26 ` David Howells
2006-05-30 17:02 ` Christoph Lameter
2006-05-30 17:25 ` Hugh Dickins
2006-05-30 17:30 ` Christoph Lameter
2006-05-30 17:41 ` Hugh Dickins
2006-05-30 17:56 ` David Howells
2006-05-30 20:21 ` Christoph Lameter
2006-05-25 13:56 ` [PATCH 2/3] mm: balance " Peter Zijlstra
2006-05-25 13:56 ` [PATCH 3/3] mm: msync cleanup Peter Zijlstra
2006-06-06 20:06 ` [PATCH 0/3] mm: tracking dirty pages -v5 Hugh Dickins
2006-06-07 18:08 ` Peter Zijlstra
2006-06-08 12:44 ` [PATCH] mm: tracking dirty pages -v6 Peter Zijlstra
2006-06-08 13:02 ` Peter Zijlstra [this message]
2006-06-08 16:53 ` Christoph Lameter
2006-06-08 20:10 ` Nate Diller
2006-06-08 20:20 ` Linus Torvalds
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