linux-kernel - Re: [PATCH 1/4] mm/memcg: use NUMA_NO_NODE to indicate allocation from unspecified node

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Date:   Fri, 14 Jan 2022 13:07:05 +0200
From:   Mike Rapoport <rppt@...nel.org>
To:     Wei Yang <richard.weiyang@...il.com>
Cc:     hannes@...xchg.org, mhocko@...nel.org, vdavydov.dev@...il.com,
        akpm@...ux-foundation.org, shakeelb@...gle.com, guro@...com,
        vbabka@...e.cz, willy@...radead.org, songmuchun@...edance.com,
        shy828301@...il.com, surenb@...gle.com,
        linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 1/4] mm/memcg: use NUMA_NO_NODE to indicate allocation
 from unspecified node

On Tue, Jan 11, 2022 at 01:02:59AM +0000, Wei Yang wrote:
> Instead of use "-1", let's use NUMA_NO_NODE for consistency.
> 
> Signed-off-by: Wei Yang <richard.weiyang@...il.com>

Reviewed-by: Mike Rapoport <rppt@...ux.ibm.com>

> ---
>  mm/memcontrol.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 2ed5f2a0879d..11715f7323c0 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -5054,7 +5054,7 @@ static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
>  	 *       function.
>  	 */
>  	if (!node_state(node, N_NORMAL_MEMORY))
> -		tmp = -1;
> +		tmp = NUMA_NO_NODE;
>  	pn = kzalloc_node(sizeof(*pn), GFP_KERNEL, tmp);
>  	if (!pn)
>  		return 1;
> -- 
> 2.33.1
> 
> 

-- 
Sincerely yours,
Mike.