From: Nick Piggin <piggin@cyberone.com.au>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@osdl.org>, Andi Kleen <ak@suse.de>,
Rohit Seth <rohitseth@google.com>, Andrew Morton <akpm@osdl.org>,
clameter@sgi.com, mbligh@google.com, hugh@veritas.com,
riel@redhat.com, andrea@suse.de, arjan@infradead.org,
apw@shadowen.org, mel@csn.ul.ie, marcelo@kvack.org,
anton@samba.org, paulmck@us.ibm.com,
linux-mm <linux-mm@kvack.org>
Subject: Re: [RFC][PATCH] tracking dirty pages in shared mappings
Date: Sun, 07 May 2006 10:40:16 +1000 [thread overview]
Message-ID: <445D41F0.800@cyberone.com.au> (raw)
In-Reply-To: <1146929357.3561.28.camel@lappy>
Peter Zijlstra wrote:
>On Sat, 2006-05-06 at 23:47 +1000, Nick Piggin wrote:
>
>
>>Yep. Let's not distract from getting the basic mechanism working though.
>>balance_dirty_pages would be patch 2..n ;)
>>
>
>Attached are both a new version of the shared_mapping_dirty patch, and
>balance_dirty_pages; to be applied in that order.
>
>It makes my testcase survive and not OOM like it used to.
>
Looks OK. I wonder if test_clear_page_dirty could skip the page_wrprotect
entirely? It would speed up cases like truncate that don't care. OTOH, it
looks like several filesystems do not use clear_page_dirty_for_io where
they possibly should be...
Perhaps you could consolidate both checks into test_set_page_writeback()?
Andrew, any ideas?
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next prev parent reply other threads:[~2006-05-07 0:40 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-05 20:35 [RFC][PATCH] tracking dirty pages in shared mappings Peter Zijlstra
2006-05-06 13:18 ` Nick Piggin
2006-05-06 13:34 ` Peter Zijlstra
2006-05-06 13:47 ` Nick Piggin
2006-05-06 15:29 ` Peter Zijlstra
2006-05-07 0:40 ` Nick Piggin [this message]
2006-05-07 3:43 ` Nick Piggin
2006-05-08 6:43 ` Christoph Lameter
2006-05-08 7:23 ` Peter Zijlstra
2006-05-08 19:20 ` [RFC][PATCH 1/2] tracking dirty pages in shared mappings -V3 Peter Zijlstra
2006-05-09 5:41 ` Christoph Lameter
2006-05-09 6:06 ` Peter Zijlstra
2006-05-09 20:44 ` [RFC][PATCH 1/3] tracking dirty pages in shared mappings -V4 Peter Zijlstra
2006-05-09 20:52 ` Peter Chubb
2006-05-09 20:55 ` Martin Bligh
2006-05-09 22:56 ` Brian Twichell
2006-05-10 0:24 ` Linus Torvalds
2006-05-10 0:29 ` Nick Piggin
2006-05-10 1:24 ` Linus Torvalds
2006-05-11 15:02 ` Andrew Morton
2006-05-11 16:39 ` Andy Whitcroft
2006-05-11 22:52 ` Christoph Lameter
2006-05-11 23:30 ` Linus Torvalds
2006-05-11 23:44 ` Andrew Morton
2006-05-12 0:10 ` Linus Torvalds
2006-05-12 8:07 ` Andy Whitcroft
2006-05-12 14:25 ` Martin J. Bligh
2006-05-14 15:58 ` Andy Whitcroft
2006-05-12 1:51 ` Nick Piggin
2006-05-12 4:30 ` Andrew Morton
2006-05-12 5:05 ` Nick Piggin
2006-05-12 7:06 ` Peter Zijlstra
2006-05-12 8:04 ` Nick Piggin
2006-05-12 8:52 ` Peter Zijlstra
2006-05-12 8:07 ` Nick Piggin
2006-05-12 4:51 ` Christoph Lameter
2006-05-09 20:44 ` [RFC][PATCH 2/3] throttle writers of shared mappings Peter Zijlstra
2006-05-09 22:54 ` Nick Piggin
2006-05-09 22:55 ` Nick Piggin
2006-05-10 6:25 ` Peter Zijlstra
2006-05-09 20:44 ` [RFC][PATCH 3/3] optimize follow_pages() Peter Zijlstra
2006-05-10 6:30 ` Peter Zijlstra
2006-05-08 19:24 ` [RFC][PATCH 2/2] throttle writers of shared mappings Peter Zijlstra
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