From: Minchan Kim <minchan.kim@gmail.com>
To: David Howells <dhowells@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: kosaki.motohiro@jp.fujitsu.com, torvalds@linux-foundation.org,
peterz@infradead.org, nrik.Berkhan@ge.com,
uclinux-dev@uclinux.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, hannes@cmpxchg.org, riel@surriel.com,
lee.schermerhorn@hp.com, Minchan Kim <minchan.kim@gmail.com>
Subject: Re: [PATCH 0/2] Make the Unevictable LRU available on NOMMU
Date: Sat, 14 Mar 2009 09:27:43 +0900 [thread overview]
Message-ID: <28c262360903131727l4ef41db5xf917c7c5eb4825a8@mail.gmail.com> (raw)
In-Reply-To: <20090313173343.10169.58053.stgit@warthog.procyon.org.uk>
Hi, David.
It seems your patch is better than mine. Thanks. :)
But my concern is that as Peter pointed out, unevictable lru's
solution is not fundamental one.
He want to remove ramfs page from lru list to begin with.
I guess Andrew also thought same thing with Peter.
I think it's a fundamental solution. but it may be long term solution.
This patch can solve NOMMU problem in current status.
Andrew, What do you think about it ?
On Sat, Mar 14, 2009 at 2:33 AM, David Howells <dhowells@redhat.com> wrote:
>
> The first patch causes the mlock() bits added by CONFIG_UNEVICTABLE_LRU to be
> unavailable in NOMMU mode.
>
> The second patch makes CONFIG_UNEVICTABLE_LRU available in NOMMU mode.
>
> David
>
--
Kinds regards,
Minchan Kim
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next prev parent reply other threads:[~2009-03-14 0:27 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090311153034.9389.19938.stgit@warthog.procyon.org.uk>
2009-03-11 22:03 ` [PATCH] NOMMU: Pages allocated to a ramfs inode's pagecache may get wrongly discarded Andrew Morton
2009-03-11 22:36 ` Johannes Weiner
2009-03-12 0:02 ` Andrew Morton
2009-03-12 0:35 ` Minchan Kim
2009-03-12 1:04 ` KOSAKI Motohiro
2009-03-12 1:52 ` Minchan Kim
2009-03-12 1:56 ` Minchan Kim
2009-03-12 2:00 ` KOSAKI Motohiro
2009-03-12 2:11 ` Minchan Kim
2009-03-12 12:19 ` Robin Getz
2009-03-12 17:55 ` [uClinux-dev] " Jamie Lokier
2009-03-13 17:33 ` [PATCH 0/2] Make the Unevictable LRU available on NOMMU David Howells
2009-03-13 17:33 ` [PATCH 1/2] NOMMU: There is no mlock() for NOMMU, so don't provide the bits David Howells
2009-03-14 11:17 ` KOSAKI Motohiro
2009-03-13 17:33 ` [PATCH 2/2] NOMMU: Make CONFIG_UNEVICTABLE_LRU available when CONFIG_MMU=n David Howells
2009-03-14 11:17 ` KOSAKI Motohiro
2009-03-14 0:27 ` Minchan Kim [this message]
2009-03-20 16:08 ` [PATCH 0/2] Make the Unevictable LRU available on NOMMU Lee Schermerhorn
2009-03-20 16:24 ` David Howells
2009-03-20 18:30 ` Lee Schermerhorn
2009-03-21 10:20 ` Johannes Weiner
2009-03-22 20:13 ` [patch 1/3] mm: decouple unevictable lru from mmu Johannes Weiner
2009-03-22 23:46 ` KOSAKI Motohiro
2009-03-23 0:14 ` Johannes Weiner
2009-03-23 10:48 ` David Howells
2009-03-22 20:13 ` [patch 2/3] ramfs-nommu: use generic lru cache Johannes Weiner
2009-03-23 2:22 ` KOSAKI Motohiro
2009-03-22 20:13 ` [patch 3/3] mm: keep pages from unevictable mappings off the LRU lists Johannes Weiner
2009-03-23 0:44 ` Minchan Kim
2009-03-23 2:21 ` KOSAKI Motohiro
2009-03-23 8:42 ` Johannes Weiner
2009-03-23 9:01 ` KOSAKI Motohiro
2009-03-23 9:23 ` KOSAKI Motohiro
2009-03-26 0:48 ` Johannes Weiner
2009-03-23 10:40 ` [patch 2/3] ramfs-nommu: use generic lru cache David Howells
2009-03-23 10:53 ` [patch 3/3] mm: keep pages from unevictable mappings off the LRU lists David Howells
2009-03-26 0:01 ` Johannes Weiner
2009-03-26 8:56 ` KOSAKI Motohiro
2009-03-26 10:36 ` Johannes Weiner
2009-03-23 20:07 ` [PATCH 0/2] Make the Unevictable LRU available on NOMMU Lee Schermerhorn
2009-03-13 11:53 ` [PATCH] NOMMU: Pages allocated to a ramfs inode's pagecache may get wrongly discarded David Howells
2009-03-13 22:49 ` Johannes Weiner
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