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Message-ID: <e320fb01-7d53-668e-53b5-463312ae0909@huawei.com>
Date: Tue, 19 Apr 2022 19:26:43 +0800
From: Miaohe Lin <linmiaohe@...wei.com>
To: Alistair Popple <apopple@...dia.com>
CC: <akpm@...ux-foundation.org>, <willy@...radead.org>,
<vbabka@...e.cz>, <dhowells@...hat.com>, <neilb@...e.de>,
<david@...hat.com>, <surenb@...gle.com>, <minchan@...nel.org>,
<peterx@...hat.com>, <sfr@...b.auug.org.au>,
<rcampbell@...dia.com>, <naoya.horiguchi@....com>,
<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] mm/swapfile: unuse_pte can map random data if swap
read fails
On 2022/4/19 15:53, Alistair Popple wrote:
> Also in madvise_free_pte_range() you could just remove the swap entry as it's no
> longer needed.
>
This swap entry will be removed in madvise_dontneed_single_vma().
And in madvise_free_pte_range(), we may need to keep it as same as
hwpoison entry. Or am I supposed to remove it even if hwpoison entry
is reused later?
Thanks!
> Alistair Popple <apopple@...dia.com> writes:
>
>> Miaohe Lin <linmiaohe@...wei.com> writes:
>>
...
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