From: Mike Kravetz <mike.kravetz@oracle.com>
To: Mina Almasry <almasrymina@google.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>,
Peter Xu <peterx@redhat.com>, Linux-MM <linux-mm@kvack.org>,
open list <linux-kernel@vger.kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH v4] mm, hugetlb: Fix simple resv_huge_pages underflow on UFFDIO_COPY
Date: Tue, 1 Jun 2021 09:59:01 -0700 [thread overview]
Message-ID: <a4460053-07f5-9bec-e080-60f61ba931b8@oracle.com> (raw)
In-Reply-To: <CAHS8izO_-wK8GL9iK6HiG5xJc1unMLxO0uzFF20v4HKU36R8Ug@mail.gmail.com>
On 5/31/21 7:49 PM, Mina Almasry wrote:
> On Mon, May 31, 2021 at 5:37 PM Andrew Morton <akpm@linux-foundation.org> wrote:
>> On Thu, 27 May 2021 17:46:49 -0700 Mina Almasry <almasrymina@google.com> wrote:
>>
>>
>> Do we have a Fixes: for this, or is it an always-been-there issue?
>
> This reproduces as far back as 4.15 kernel. Looks like always-been-there issue.
>
Specifically,
Fixes: 8fb5debc5fcd ("userfaultfd: hugetlbfs: add hugetlb_mcopy_atomic_pte for userfaultfd support")
--
Mike Kravetz
prev parent reply other threads:[~2021-06-01 16:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 0:46 [PATCH v4] mm, hugetlb: Fix simple resv_huge_pages underflow on UFFDIO_COPY Mina Almasry
2021-05-28 0:46 ` Mina Almasry
2021-05-28 18:43 ` Mike Kravetz
2021-06-01 0:37 ` Andrew Morton
2021-06-01 2:49 ` Mina Almasry
2021-06-01 16:59 ` Mike Kravetz [this message]
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