From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Hugh Dickins <hugh@veritas.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Christoph Lameter <clameter@engr.sgi.com>,
Pavel Machek <pavel@ucw.cz>,
linux-mm@kvack.org
Subject: Re: Remove page flags for software suspend
Date: Tue, 13 Mar 2007 14:36:20 +1100 [thread overview]
Message-ID: <45F61C34.4050700@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.64.0703011744500.11812@blonde.wat.veritas.com>
Sorry to take so long to reply. I was having issues with this account.
Hugh Dickins wrote:
> On Thu, 1 Mar 2007, Nick Piggin wrote:
>
>>Let's make sure that no more backdoor page flags get allocated without
>>going through the linux-mm list to work out whether we really need it
>>or can live without it...
>
>
> On Fri, 2 Mar 2007, Nick Piggin wrote:
>
>>I need one bit for lockless pagecache ;)
>
>
> Is that still your PageNoNewRefs thing?
Yes.
> What was wrong with my atomic_cmpxchg suggestion?
It is a very good suggestion. I think I ran into an issue where I
had wanted to set PG_nonewrefs for a page with an elevated refcount
or some other issue like that. Can't remember exactly -- I think it
is fixable by reworking some code, but I had wanted to do taht as a
subsequent patch.
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next prev parent reply other threads:[~2007-03-13 3:36 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-16 10:13 Remove page flags for software suspend Christoph Lameter
2007-02-16 10:56 ` Rafael J. Wysocki
2007-02-28 10:14 ` Pavel Machek
2007-02-28 15:25 ` Christoph Lameter
2007-02-28 17:13 ` Rafael J. Wysocki
2007-02-28 17:17 ` Christoph Lameter
2007-02-28 17:33 ` Rafael J. Wysocki
2007-02-28 17:35 ` Christoph Lameter
2007-02-28 17:51 ` Rafael J. Wysocki
2007-02-28 17:56 ` Christoph Lameter
2007-02-28 21:11 ` Pavel Machek
2007-03-01 2:35 ` Nick Piggin
2007-03-01 15:18 ` Nick Piggin
2007-03-01 15:33 ` Rafael J. Wysocki
2007-03-01 23:10 ` Rafael J. Wysocki
2007-03-04 13:50 ` [RFC][PATCH 0/3] swsusp: Do not use page flags (was: Re: Remove page flags for software suspend) Rafael J. Wysocki
2007-03-04 13:50 ` Rafael J. Wysocki
2007-03-04 14:07 ` [RFC][PATCH 1/3] swsusp: Do not use page flags directly Rafael J. Wysocki
2007-03-04 14:07 ` Rafael J. Wysocki
2007-03-13 4:45 ` Nick Piggin
2007-03-13 4:45 ` Nick Piggin
2007-03-04 14:07 ` [RFC][PATCH 2/3] swsusp: Do not use page flags Rafael J. Wysocki
2007-03-04 14:07 ` Rafael J. Wysocki
2007-03-13 4:47 ` Nick Piggin
2007-03-13 4:47 ` Nick Piggin
2007-03-13 9:16 ` Rafael J. Wysocki
2007-03-13 9:16 ` Rafael J. Wysocki
2007-03-13 9:23 ` Nick Piggin
2007-03-13 9:23 ` Nick Piggin
2007-03-13 10:17 ` Rafael J. Wysocki
2007-03-13 10:17 ` Rafael J. Wysocki
2007-03-13 10:31 ` Nick Piggin
2007-03-13 10:31 ` Nick Piggin
2007-03-13 21:20 ` Rafael J. Wysocki
2007-03-13 21:20 ` Rafael J. Wysocki
2007-03-14 3:17 ` Nick Piggin
2007-03-14 3:17 ` Nick Piggin
2007-03-14 8:30 ` Rafael J. Wysocki
2007-03-14 8:30 ` Rafael J. Wysocki
2007-03-04 14:08 ` [RFC][PATCH 3/3] mm: Remove nosave and nosave_free " Rafael J. Wysocki
2007-03-04 14:08 ` Rafael J. Wysocki
2007-03-08 1:00 ` [RFC][PATCH 0/3] swsusp: Do not use page flags (was: Re: Remove page flags for software suspend) Johannes Berg
2007-03-08 1:00 ` Johannes Berg
2007-03-08 22:05 ` Rafael J. Wysocki
2007-03-08 22:05 ` Rafael J. Wysocki
2007-03-08 22:10 ` Johannes Berg
2007-03-08 22:10 ` Johannes Berg
2007-03-08 22:33 ` Rafael J. Wysocki
2007-03-08 22:33 ` Rafael J. Wysocki
2007-03-08 22:43 ` Johannes Berg
2007-03-08 22:43 ` Johannes Berg
2007-03-08 22:54 ` Rafael J. Wysocki
2007-03-08 22:54 ` Rafael J. Wysocki
2007-03-08 22:54 ` Johannes Berg
2007-03-08 22:54 ` Johannes Berg
2007-03-08 23:15 ` Pavel Machek
2007-03-08 23:15 ` Pavel Machek
2007-03-08 23:21 ` Johannes Berg
2007-03-08 23:21 ` Johannes Berg
2007-03-08 23:23 ` Pavel Machek
2007-03-08 23:23 ` Pavel Machek
2007-03-08 23:34 ` Rafael J. Wysocki
2007-03-08 23:34 ` Rafael J. Wysocki
2007-03-08 23:36 ` Pavel Machek
2007-03-08 23:36 ` Pavel Machek
2007-03-08 15:09 ` Johannes Berg
2007-03-08 15:09 ` Johannes Berg
2007-03-08 22:10 ` Rafael J. Wysocki
2007-03-08 22:10 ` Rafael J. Wysocki
2007-03-08 22:12 ` Johannes Berg
2007-03-08 22:12 ` Johannes Berg
2007-03-08 15:53 ` Peter Zijlstra
2007-03-08 15:53 ` Peter Zijlstra
2007-03-08 22:11 ` Rafael J. Wysocki
2007-03-08 22:11 ` Rafael J. Wysocki
2007-03-01 17:48 ` Remove page flags for software suspend Hugh Dickins
2007-03-13 3:36 ` Nick Piggin [this message]
2007-03-01 20:46 ` Rafael J. Wysocki
2007-03-02 10:17 ` Pavel Machek
2007-02-28 21:08 ` Pavel Machek
2007-02-28 21:16 ` Christoph Lameter
2007-02-28 21:22 ` Pavel Machek
2007-02-28 22:23 ` Rafael J. Wysocki
2007-03-01 2:31 ` Nick Piggin
2007-02-28 10:14 ` Pavel Machek
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