From: Greg KH <gregkh@linuxfoundation.org>
To: Zi Yan <ziy@nvidia.com>
Cc: Liu Shixin <liushixin2@huawei.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Barry Song <baohua@kernel.org>,
David Hildenbrand <david@redhat.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Lance Yang <ioworker0@gmail.com>,
Ryan Roberts <ryan.roberts@arm.com>,
Matthew Wilcox <willy@infradead.org>,
Hugh Dickins <hughd@google.com>,
Charan Teja Kalla <quic_charante@quicinc.com>,
linux-kernel@vger.kernel.org, Shivank Garg <shivankg@amd.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v2] mm/migrate: fix shmem xarray update during migration
Date: Tue, 4 Mar 2025 06:30:46 +0100 [thread overview]
Message-ID: <2025030437-posting-barbecue-94af@gregkh> (raw)
In-Reply-To: <16838F71-3E96-4EFE-BDA1-600C33F75D36@nvidia.com>
On Mon, Mar 03, 2025 at 09:03:04PM -0500, Zi Yan wrote:
> On 28 Feb 2025, at 12:49, Zi Yan wrote:
>
> > Pagecache uses multi-index entries for large folio, so does shmem. Only
> > swap cache still stores multiple entries for a single large folio.
> > Commit fc346d0a70a1 ("mm: migrate high-order folios in swap cache correctly")
> > fixed swap cache but got shmem wrong by storing multiple entries for
> > a large shmem folio. Fix it by storing a single entry for a shmem
> > folio.
> >
> > Fixes: fc346d0a70a1 ("mm: migrate high-order folios in swap cache correctly")
> > Reported-by: Liu Shixin <liushixin2@huawei.com>
> > Closes: https://lore.kernel.org/all/28546fb4-5210-bf75-16d6-43e1f8646080@huawei.com/
> > Signed-off-by: Zi Yan <ziy@nvidia.com>
> > Reviewed-by: Shivank Garg <shivankg@amd.com>
>
> +Cc:stable
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
next prev parent reply other threads:[~2025-03-04 5:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-28 17:49 Zi Yan
2025-03-01 1:59 ` Baolin Wang
2025-03-04 2:03 ` Zi Yan
2025-03-04 5:30 ` Greg KH [this message]
2025-03-04 17:00 ` Zi Yan
2025-03-04 9:47 ` Hugh Dickins
2025-03-04 17:18 ` Zi Yan
2025-03-04 20:07 ` Zi Yan
2025-03-05 3:22 ` Zi Yan
2025-03-05 19:55 ` Zi Yan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2025030437-posting-barbecue-94af@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=akpm@linux-foundation.org \
--cc=baohua@kernel.org \
--cc=baolin.wang@linux.alibaba.com \
--cc=david@redhat.com \
--cc=hughd@google.com \
--cc=ioworker0@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=liushixin2@huawei.com \
--cc=quic_charante@quicinc.com \
--cc=ryan.roberts@arm.com \
--cc=shivankg@amd.com \
--cc=stable@vger.kernel.org \
--cc=wangkefeng.wang@huawei.com \
--cc=willy@infradead.org \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox