From: Michal Simek <michal.simek@petalogix.com>
To: Mike Frysinger <vapier.adi@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
David Howells <dhowells@redhat.com>,
torvalds@osdl.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync_mm_rss() issues
Date: Tue, 09 Mar 2010 12:49:18 +0100 [thread overview]
Message-ID: <4B9635BE.6090001@petalogix.com> (raw)
In-Reply-To: <8bd0f97a1003081833s2e8527d7pd1e0b427ae76020@mail.gmail.com>
Mike Frysinger wrote:
> On Mon, Mar 8, 2010 at 19:58, KAMEZAWA Hiroyuki wrote:
>> David-san, could you check this ?
>> ==
>> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>>
>> Fix breakage in NOMMU build
>>
>> commit 34e55232e59f7b19050267a05ff1226e5cd122a5 added sync_mm_rss()
>> for syncing loosely accounted rss counters. It's for CONFIG_MMU but
>> sync_mm_rss is called even in NOMMU enviroment (kerne/exit.c, fs/exec.c).
>> Above commit doesn't handle it well.
>>
>> This patch changes
>> SPLIT_RSS_COUNTING depends on SPLIT_PTLOCKS && CONFIG_MMU
>>
>> And for avoid unnecessary function calls, sync_mm_rss changed to be inlined
>> noop function in header file.
>
> fixes Blackfin systems ...
>
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
fixes Microblaze noMMU systems too.
Signed-off-by: Michal Simek <monstr@monstr.eu>
You can check Microblaze noMMU system via my site
http://www.monstr.eu/wiki/doku.php?id=log:log
Will be good to add your patches to linux-next before Linus tree.
Michal
> -mike
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PetaLogix - Linux Solutions for a Reconfigurable World
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next prev parent reply other threads:[~2010-03-09 11:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-08 13:59 David Howells
2010-03-08 23:50 ` KAMEZAWA Hiroyuki
2010-03-09 0:58 ` [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was " KAMEZAWA Hiroyuki
2010-03-09 2:33 ` Mike Frysinger
2010-03-09 11:49 ` Michal Simek [this message]
2010-03-09 15:41 ` Christoph Lameter
2010-03-09 15:43 ` Mike Frysinger
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