Re: [PATCH] cgroup: prefer [kv]zalloc over [kv]malloc+memset inmemory controller code.

From: Wu Fengguang
Date: Wed Nov 03 2010 - 10:15:38 EST


On Mon, Nov 01, 2010 at 08:59:13PM +0100, Jesper Juhl wrote:

> @@ -4169,13 +4169,11 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
> */
> if (!node_state(node, N_NORMAL_MEMORY))
> tmp = -1;
> - pn = kmalloc_node(sizeof(*pn), GFP_KERNEL, tmp);
> + pn = kmalloc_node(sizeof(*pn), GFP_KERNEL|__GFP_ZERO, tmp);

Use the simpler kzalloc_node()? It's introduced here:

commit 979b0fea2d9ae5d57237a368d571cbc84655fba6
Author: Jeff Layton <jlayton@xxxxxxxxxx>
Date: Thu Jun 5 22:47:00 2008 -0700

vm: add kzalloc_node() inline


Reviewed-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>

Thanks,
Fengguang
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