linux-kernel - Re: [PATCH] mm/demotion: Fix kernel error with memory hotplug

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Date:   Thu, 25 Aug 2022 20:04:28 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     "Huang, Ying" <ying.huang@...el.com>
Cc:     Aneesh Kumar K V <aneesh.kumar@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>, linux-mm@...ck.org,
        Wei Xu <weixugc@...gle.com>, Yang Shi <shy828301@...il.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Tim C Chen <tim.c.chen@...el.com>,
        Michal Hocko <mhocko@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Hesham Almatary <hesham.almatary@...wei.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Alistair Popple <apopple@...dia.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Johannes Weiner <hannes@...xchg.org>, jvgediya.oss@...il.com,
        Bharata B Rao <bharata@....com>
Subject: Re: [PATCH] mm/demotion: Fix kernel error with memory hotplug

On Fri, 26 Aug 2022 08:25:42 +0800 "Huang, Ying" <ying.huang@...el.com> wrote:

> >> Do we have to cc stable?
> >> 
> >
> > That patch is not yet merged upstream. It is in mm-unstable. I guess Andrew can fold the change
> > into the original patch?
> 
> I think it may better to reply the original patch and name this patch as
> fix, for example,
> 
>   mm/demotion: Add hotplug callbacks to handle new numa node onlined fix
> 
> I found Andrew uses this kind of name before for fixing.

Doesn't matter much - figuring out which-patch-did-this-patch-fix is,
shall we say, a common operation at akpm headquarters ;)

This was an easy one, thanks to the Fixes:.  The patch didn't actually
apply at the desired point in the series, and that's pretty common. 
All fixed up now, thanks.