linux-kernel - Re: [PATCH v4 1/8] cgroup/cpuset: use hotplug_memory

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Date:   Mon, 17 Oct 2022 18:35:08 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Liu Shixin <liushixin2@...wei.com>
Cc:     David Hildenbrand <david@...hat.com>,
        Waiman Long <longman@...hat.com>,
        Zefan Li <lizefan.x@...edance.com>,
        Christoph Lameter <cl@...ux.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH v4 1/8] cgroup/cpuset: use hotplug_memory_notifier()
 directly

On Fri, 23 Sep 2022 11:33:40 +0800 Liu Shixin <liushixin2@...wei.com> wrote:

> Since patch 316346243be6 

That's a merge commit.  I'll rewrite this to 76ae847497bc52
("Documentation: raise minimum supported version of GCC to 5.1"). 
Which, although misnamed is the commit which made the change.

> has already updated the minimum gcc version to 5.1.
> The previous problem mentioned in patch f02c69680088

I'll make that f02c69680088 ("include/linux/memory.h: implement
register_hotmemory_notifier()").

And hot damn I write good changelogs!  Wrote :(

> is not existed. So we
> can now revert to use hotplug_memory_notifier() directly rather than
> register_hotmemory_notifier().

I redid the changelogs thusly:

: Commit 76ae847497bc52 ("Documentation: raise minimum supported version of
: GCC to 5.1") updated the minimum gcc version to 5.1.  So the problem
: mentioned in f02c69680088 ("include/linux/memory.h: implement
: register_hotmemory_notifier()") no longer exist.  So we can now switch to
: use hotplug_memory_notifier() directly rather than
: register_hotmemory_notifier().