linux-kernel - Re: [PATCH 2/6] mm/vmscan: use node_is_toptier helper in node

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Date:   Mon, 25 Apr 2022 22:32:17 +0000
From:   Adam Manzanares <a.manzanares@...sung.com>
To:     Davidlohr Bueso <dave@...olabs.net>
CC:     "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "mhocko@...nel.org" <mhocko@...nel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "rientjes@...gle.com" <rientjes@...gle.com>,
        "yosryahmed@...gle.com" <yosryahmed@...gle.com>,
        "hannes@...xchg.org" <hannes@...xchg.org>,
        "shakeelb@...gle.com" <shakeelb@...gle.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "tim.c.chen@...ux.intel.com" <tim.c.chen@...ux.intel.com>,
        "roman.gushchin@...ux.dev" <roman.gushchin@...ux.dev>,
        "gthelen@...gle.com" <gthelen@...gle.com>,
        Heekwon Park <heekwon.p@...sung.com>,
        Jongmin Gim <gim.jongmin@...sung.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/6] mm/vmscan: use node_is_toptier helper in
 node_reclaim

On Fri, Apr 15, 2022 at 10:38:58PM -0700, Davidlohr Bueso wrote:
> We have helpers for a reason.
> 
> Signed-off-by: Davidlohr Bueso <dave@...olabs.net>
> ---
>  mm/vmscan.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index 1678802e03e7..cb583fcbf5bf 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -4750,7 +4750,7 @@ int node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned int order)
>  	 * over remote processors and spread off node memory allocations
>  	 * as wide as possible.
>  	 */
> -	if (node_state(pgdat->node_id, N_CPU) && pgdat->node_id != numa_node_id())
> +	if (node_is_toptier(pgdat->node_id) && pgdat->node_id != numa_node_id())
>  		return NODE_RECLAIM_NOSCAN;
>  
>  	if (test_and_set_bit(PGDAT_RECLAIM_LOCKED, &pgdat->flags))
> -- 
> 2.26.2
>


Looks good.

Reviewed by: Adam Manzanares <a.manzanares@...sung.com>