linux-kernel - Re: [PATCH 0/13] memory cgroup updates v4

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Message-Id: <20080922202858.14525857.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Mon, 22 Sep 2008 20:28:58 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"xemul@...nvz.org" <xemul@...nvz.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/13] memory cgroup updates v4

On Mon, 22 Sep 2008 19:51:59 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:
> Brief description.
> 
> 1/13 .... special mapping fix. (NEW)
>      => avoid accounting pages not on LRU...which we cannot reclaim.
> 
> 2/13 .... account swap-cache under lock.
>      => move accounting of swap-cache under lock for avoiding unnecessary race.
>          
> 3/13 .... make root cgroup to be unlimited.
>      => fix root cgroup's memory limit to unlimited.
> 
> 4/13 .... atomic-flags for page_cgroup
>      => make page_cgroup->flags to be atomic.
> 
> 5/13 .... implement move_account function.
>      => add a function for moving page_cgroup's account to other cgroup.
> 
> 6/13 ... force_empty to migrate account
>      => move all account to root cgroup rather than forget all.
> 
> 7/13 ...make mapping NULL (clean up)
>      => ensure page->mapping to be NULL before calling mem_cgroup_uncharge_cache().
> 
> 8/13 ...optimize cpustat
>      => optimize access to per-cpu statistics for memcg.
> 
> 9/13 ...lookup page_cgroup (CHANGED)
>      => preallocate all page_cgroup at boot and remove page->page_cgroup pointer.
> 
> 10/13...page_cgroup lookaside buffer 
>      => helps looking up page_cgroup from page.
> 
> 11/13...lazy lru freeing page_cgroup (NEW)
>      => do removal from LRU in bached manner like pagevec.
> 
> 12/13...lazy lru add page_cgroup (NEW)
>      => do addition to LRU in bached manner like pagevec.
> 
> 13/13...swap accountig fix. (NEW)
>      => fix race in swap accounting (can be happen)
>         and this intrduce new protocal as precharge/commit/cancel.
> 
> Some patches are big but not complicated I think.
> 
Sorry for crazy patch numbering...

1   -> 1
2   -> 2
3   -> 3
3.5 -> 4
3.6 -> 5
4   -> 6
5   -> 7
6   -> 8
9   -> 9
10  -> 10
11  -> 11
12  -> 12

I may not able to do quick responce, sorry.

Thanks,
-Kame



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