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From: Mike Frysinger <vapier.adi@gmail.com>
Date: Mon, 8 Mar 2010 21:33:22 -0500
Message-ID: <8bd0f97a1003081833s2e8527d7pd1e0b427ae76020@mail.gmail.com>
Subject: Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync_mm_rss() 
	issues
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Howells <dhowells@redhat.com>, torvalds@osdl.org,
       linux-kernel@vger.kernel.org, linux-mm@kvack.org
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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>
-mike