linux-kernel - Re: [PATCH RESEND] mm/memory-failure: not select MEMORY

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Message-ID: <20251017013257.1181-1-xieyuanbin1@huawei.com>
Date: Fri, 17 Oct 2025 09:32:57 +0800
From: Xie Yuanbin <xieyuanbin1@...wei.com>
To: <akpm@...ux-foundation.org>
CC: <Liam.Howlett@...cle.com>, <xieyuanbin1@...wei.com>, <david@...hat.com>,
	<liaohua4@...wei.com>, <lilinjie8@...wei.com>, <linmiaohe@...wei.com>,
	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	<lorenzo.stoakes@...cle.com>, <mhocko@...e.com>, <nao.horiguchi@...il.com>,
	<rppt@...nel.org>, <surenb@...gle.com>, <vbabka@...e.cz>, <will@...nel.org>
Subject: Re: [PATCH RESEND] mm/memory-failure: not select MEMORY_ISOLATION

On Thu, 17 Oct, Andrew Morton <akpm@...ux-foundation.org> wrote:

>> We added that "select MEMORY_ISOLATION" in commit ee6f509c3274 ("mm:
>> factor out memory isolate functions").
>> However, in commit add05cecef80 ("mm: soft-offline: don't free target
>> page in successful page migration") we remove the need for it, where
>> we removed the calls to set_migratetype_isolate() etc.
>>
>> What CONFIG_MEMORY_FAILURE soft-offline support wants is
>> migrate_pages() support. But that comes with CONFIG_MIGRATION.
>> And isolate_folio_to_list() has nothing to do with CONFIG_MEMORY_ISOLATION.
>>
>> Therefore, we can remove "select MEMORY_ISOLATION" of MEMORY_FAILURE.
>
> We already merged this?

Oh, I didn't know this had already happened.
I'm sorry about that, forget it.

Xie Yuanbin