linux-ext4 - Re: [PATCH v6 02/14] mm: handling Non-LRU pages returned by vm_normal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <3c9345ca-7dd8-3833-e341-4f97f124b772@amd.com>
Date:   Tue, 28 Jun 2022 22:56:33 -0500
From:   "Sierra Guiza, Alejandro (Alex)" <alex.sierra@....com>
To:     David Hildenbrand <david@...hat.com>, jgg@...dia.com
Cc:     Felix.Kuehling@....com, linux-mm@...ck.org, rcampbell@...dia.com,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        hch@....de, jglisse@...hat.com, apopple@...dia.com,
        willy@...radead.org, akpm@...ux-foundation.org
Subject: Re: [PATCH v6 02/14] mm: handling Non-LRU pages returned by
 vm_normal_pages


On 6/28/2022 5:42 AM, David Hildenbrand wrote:
> On 28.06.22 02:14, Alex Sierra wrote:
>> With DEVICE_COHERENT, we'll soon have vm_normal_pages() return
>> device-managed anonymous pages that are not LRU pages. Although they
>> behave like normal pages for purposes of mapping in CPU page, and for
>> COW. They do not support LRU lists, NUMA migration or THP.
>>
>> We also introduced a FOLL_LRU flag that adds the same behaviour to
>> follow_page and related APIs, to allow callers to specify that they
>> expect to put pages on an LRU list.
>>
>> Signed-off-by: Alex Sierra <alex.sierra@....com>
>> Acked-by: Felix Kuehling <Felix.Kuehling@....com>
>> Reviewed-by: Alistair Popple <apopple@...dia.com>
>> ---
> I think my review feedback regarding FOLL_LRU has been ignored.

Sorry David, this has been addressed in v7.

Regards,
Alex Sierra

>
>