linux-kernel - Re: [PATCH v2] cgroup: prefer [kv]zalloc[_node] over [kv]malloc+memset in memory controller code.

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Message-ID: <4CD318F7.8050503@gmail.com>
Date:	Fri, 05 Nov 2010 04:35:03 +0800
From:	Li Zefan <lizf.kern@...il.com>
To:	Jesper Juhl <jj@...osbits.net>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Pavel Emelianov <xemul@...nvz.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Paul Menage <menage@...gle.com>,
	Li Zefan <lizf@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	containers@...ts.linux-foundation.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2] cgroup: prefer [kv]zalloc[_node] over [kv]malloc+memset
 in memory controller code.

> In mem_cgroup_alloc() we currently do either kmalloc() or vmalloc() then 
> followed by memset() to zero the memory. This can be more efficiently 
> achieved by using kzalloc() and vzalloc().
> There's also one situation where we can use kzalloc_node() - this is 
> what's new in this version of the patch.
> 
> The original patch was:
> 
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Reviewed-by: Minchan Kim <minchan.kim@...il.com>
> Reviewed-by: Wu Fengguang <fengguang.wu@...el.com>
> Acked-by: Balbir Singh <balbir@...ux.vnet.ibm.com>
>
> Here's version 2. I'd appreciate it if someone could merge it, but I don't 
> know who that someone would be.
> 

Normally it's Andrew Morton.

btw, a better title is: [...] memcgroup: prefer ... over ... memset
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