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From:   "Wang, Haiyue" <haiyue.wang@intel.com>
To:     Andrew Morton <akpm@linux-foundation.org>
CC:     "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "david@redhat.com" <david@redhat.com>,
        "apopple@nvidia.com" <apopple@nvidia.com>,
        "linmiaohe@huawei.com" <linmiaohe@huawei.com>,
        "Huang, Ying" <ying.huang@intel.com>,
        "songmuchun@bytedance.com" <songmuchun@bytedance.com>,
        "naoya.horiguchi@linux.dev" <naoya.horiguchi@linux.dev>,
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        Vasily Gorbik <gor@linux.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Sven Schnelle <svens@linux.ibm.com>,
        Mike Kravetz <mike.kravetz@oracle.com>
Subject: RE: [PATCH v6 1/2] mm: migration: fix the FOLL_GET failure on
 following huge page
Thread-Topic: [PATCH v6 1/2] mm: migration: fix the FOLL_GET failure on
 following huge page
Thread-Index: AQHYsRbS1IjgnpM1/EaZo6nPqIEeuq2yRsoAgAAoZ1CAACcnAIAAAFyQ
Date:   Wed, 17 Aug 2022 05:47:08 +0000
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> -----Original Message-----
> From: Andrew Morton <akpm@linux-foundation.org>
> Sent: Wednesday, August 17, 2022 13:43
> To: Wang, Haiyue <haiyue.wang@intel.com>
> Cc: linux-mm@kvack.org; linux-kernel@vger.kernel.org; david@redhat.com; a=
popple@nvidia.com;
> linmiaohe@huawei.com; Huang, Ying <ying.huang@intel.com>; songmuchun@byte=
dance.com;
> naoya.horiguchi@linux.dev; alex.sierra@amd.com; Heiko Carstens <hca@linux=
.ibm.com>; Vasily Gorbik
> <gor@linux.ibm.com>; Alexander Gordeev <agordeev@linux.ibm.com>; Christia=
n Borntraeger
> <borntraeger@linux.ibm.com>; Sven Schnelle <svens@linux.ibm.com>; Mike Kr=
avetz
> <mike.kravetz@oracle.com>
> Subject: Re: [PATCH v6 1/2] mm: migration: fix the FOLL_GET failure on fo=
llowing huge page
>=20
> On Wed, 17 Aug 2022 03:31:37 +0000 "Wang, Haiyue" <haiyue.wang@intel.com>=
 wrote:
>=20
> > > >  		}
> > >
> > > I would be better to fix this for real at those three client code sit=
es?
> >
> > Then 5.19 will break for a while to wait for the final BIG patch ?
>=20
> If that's the proposal then your [1/2] should have had a cc:stable and
> changelog words describing the plan for 6.0.
>=20
> But before we do that I'd like to see at least a prototype of the final
> fixes to s390 and hugetlb, so we can assess those as preferable for

Got it, make sense. ;-)

> backporting.  I don't think they'll be terribly intrusive or risky?