linux-kernel - Re: [PATCH v2] mm: Untangle config dependencies for demote-on-reclaim

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Date:   Wed, 23 Mar 2022 07:57:17 +0800
From:   "Huang, Ying" <ying.huang@...el.com>
To:     Oscar Salvador <osalvador@...e.de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Abhishek Goel <huntbag@...ux.vnet.ibm.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mm: Untangle config dependencies for demote-on-reclaim

Oscar Salvador <osalvador@...e.de> writes:

> At the time demote-on-reclaim was introduced, it was tied to
> CONFIG_HOTPLUG_CPU + CONFIG_MIGRATE, but that is not really
> accurate.
>
> The only two things we need to depen on is CONFIG_NUMA +
> CONFIG_MIGRATE, so clean this up.
> Furthermore, we only register the hotplug memory notifier
> when the system has CONFIG_MEMORY_HOTPLUG.
>
> Signed-off-by: Oscar Salvador <osalvador@...e.de>
> Suggested-by: "Huang, Ying" <ying.huang@...el.com>

LGTM!  Thanks!

Reviewed-by: "Huang, Ying" <ying.huang@...el.com>

Best Regards,
Huang, Ying