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sync_mm_rss() issues

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From: David Howells
Subject: sync_mm_rss() issues
Date: Monday, March 8, 2010 - 6:59 am

There are a couple of issues with sync_mm_rss(), as added by patch:

	commit 34e55232e59f7b19050267a05ff1226e5cd122a5
	Author: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
	Date:   Fri Mar 5 13:41:40 2010 -0800
	Subject: mm: avoid false sharing of mm_counter

 (1) You haven't implemented it for NOMMU mode.  What's the right way to do
     this?  Just give an empty function?

 (2) linux/mm.h should carry the empty function as an inline when
     CONFIG_SPLIT_RSS_COUNTING=n, rather than it being defined as an empty
     function in mm/memory.c.

David
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Messages in current thread:
sync_mm_rss() issues, David Howells, (Mon Mar 8, 6:59 am)
Re: sync_mm_rss() issues, KAMEZAWA Hiroyuki, (Mon Mar 8, 4:50 pm)
[BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync_mm_ ..., KAMEZAWA Hiroyuki, (Mon Mar 8, 5:58 pm)
Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync ..., Mike Frysinger, (Mon Mar 8, 7:33 pm)
Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync ..., Michal Simek, (Tue Mar 9, 4:49 am)
Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync ..., Christoph Lameter, (Tue Mar 9, 8:41 am)
Re: [BUGFIX][PATCH] fix sync_mm_rss in nommu (Was Re: sync ..., Mike Frysinger, (Tue Mar 9, 8:43 am)