linux-kernel - Re: [PATCH v3] mm: Allocate shrinker

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Message-ID: <20200131223700.GB20909@xps>
Date:   Fri, 31 Jan 2020 22:37:06 +0000
From:   Roman Gushchin <guro@...com>
To:     Kirill Tkhai <ktkhai@...tuozzo.com>
CC:     Michal Hocko <mhocko@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "hannes@...xchg.org" <hannes@...xchg.org>,
        "shakeelb@...gle.com" <shakeelb@...gle.com>,
        "vdavydov.dev@...il.com" <vdavydov.dev@...il.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] mm: Allocate shrinker_map on appropriate NUMA node

On Fri, Jan 31, 2020 at 07:08:49PM +0300, Kirill Tkhai wrote:
> mm: Allocate shrinker_map on appropriate NUMA node
> 
> From: Kirill Tkhai <ktkhai@...tuozzo.com>
> 
> Despite shrinker_map may be touched from any cpu
> (e.g., a bit there may be set by a task running
> everywhere); kswapd is always bound to specific
> node. So, we will allocate shrinker_map from
> related NUMA node to respect its NUMA locality.
> Also, this follows generic way we use for allocation
> memcg's per-node data.
> 
> Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>

Reviewed-by: Roman Gushchin <guro@...com>

Thanks!