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Message-ID: <72dfedd2-a26a-17f4-87c2-3d71ab3f55b4@redhat.com>
Date: Tue, 31 Jan 2023 15:29:59 +0100
From: David Hildenbrand <david@...hat.com>
To: "Liam R. Howlett" <Liam.Howlett@...cle.com>,
maple-tree@...ts.infradead.org, linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
linux-next@...r.kernel.org,
Sanan Hasanov <sanan.hasanov@...ghts.ucf.edu>,
Matthew Wilcox <willy@...radead.org>,
Hugh Dickins <hughd@...gle.com>
Subject: Re: [PATCH] mm/mmap: Fix vma_merge() offset when expanding the next
vma
On 31.01.23 15:24, Liam R. Howlett wrote:
> * David Hildenbrand <david@...hat.com> [230131 03:35]:
>> On 30.01.23 20:57, Liam R. Howlett wrote:
>>> The vm_pgoff was being set incorrectly when expanding the next VMA to a
>>> lower address. Fix the issue by using the mid->vm_pgoff value for this
>>> merge case (aka case 8). Note that this does not change case 3's
>>> vm_pgoff as next and mid are the same VMA.
>>>
>>> Reported-by: Sanan Hasanov <sanan.hasanov@...ghts.ucf.edu>
>>> Link: https://lore.kernel.org/linux-mm/IA1PR07MB983017D2FBA174D2FF78CEB6ABCE9@IA1PR07MB9830.namprd07.prod.outlook.com/
>>> Cc: Matthew Wilcox <willy@...radead.org>
>>> Cc: David Hildenbrand <david@...hat.com>
>>> Cc: Hugh Dickins <hughd@...gle.com>
>>
>> Fixes: ?
>
> Fixes: (soon to be invalid git id :) ("mm/mmap: remove __vma_adjust()")
Ah, right, upstream was not affected ... :)
... so this should be squashed into that commit instead as long as it
doesn't have a stable ID.
--
Thanks,
David / dhildenb
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