From: Andrew Morton <akpm@linux-foundation.org>
To: Dev Jain <dev.jain@arm.com>
Cc: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>,
david@kernel.org, muchun.song@linux.dev, osalvador@suse.de,
riel@surriel.com, liam@infradead.org, vbabka@kernel.org,
harry@kernel.org, jannh@google.com, lance.yang@linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
ryan.roberts@arm.com, anshuman.khandual@arm.com
Subject: Re: [PATCH v3 1/5] mm/rmap: convert page -> folio for hwpoison checks
Date: Sat, 25 Jul 2026 19:07:21 -0700 [thread overview]
Message-ID: <20260725190721.f2e121f118ef817e42bb3874@linux-foundation.org> (raw)
In-Reply-To: <8d2f756a-12a2-43bb-8849-3e71c1ce5d8f@arm.com>
On Sat, 25 Jul 2026 13:06:25 +0530 Dev Jain <dev.jain@arm.com> wrote:
> >> @@ -2204,7 +2205,11 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma,
> >> /* Update high watermark before we lower rss */
> >> update_hiwater_rss(mm);
> >>
> >> - if (PageHWPoison(subpage) && (flags & TTU_HWPOISON)) {
> >> + /*
> >> + * With TTU_HWPOISON, we only expect small folios or hugetlb
> >> + * folios here for now.
> >> + */
> >> + if (folio_test_hwpoison(folio) && (flags & TTU_HWPOISON)) {
> >
> > As per v2 discussion, I feel this could be tightened up, maybe something like:
> >
> > /* unmap_poisoned_folio() only refs order-0 or hugetlb folios */
> >
>
> I can do this. But note that this series is in mm-unstable already - what should
> I base the v4 on?
Ordinarily basing on latest Linus works. But this patchset has ~450
patches ahead of it and a quick trial merge wasn't promising.
I could drop the v3 series so you can base on next mm-new, please lmk.
Or
mm> git log --oneline | grep "mm/rmap: convert page -> folio for hwpoison checks"
bb2f8a7eb126 mm/rmap: convert page -> folio for hwpoison checks
mm> git checkout bb2f8a7eb126^
next prev parent reply other threads:[~2026-07-26 2:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 5:00 [PATCH v3 0/5] mm/rmap: Refactor try_to_unmap_one Dev Jain
2026-07-13 5:00 ` [PATCH v3 1/5] mm/rmap: convert page -> folio for hwpoison checks Dev Jain
2026-07-24 9:20 ` Lorenzo Stoakes (ARM)
2026-07-25 7:36 ` Dev Jain
2026-07-26 2:07 ` Andrew Morton [this message]
2026-07-26 8:22 ` Dev Jain
2026-07-13 5:00 ` [PATCH v3 2/5] mm/rmap: Add try_to_unmap_hugetlb_one Dev Jain
2026-07-24 10:39 ` Lorenzo Stoakes (ARM)
2026-07-25 8:47 ` Dev Jain
2026-07-13 5:00 ` [PATCH v3 3/5] mm/rmap: refactor some code around lazyfree folio unmapping Dev Jain
2026-07-13 5:00 ` [PATCH v3 4/5] mm/rmap: refactor anon folio unmap in try_to_unmap_one Dev Jain
2026-07-28 19:27 ` David Hildenbrand (Arm)
2026-07-13 5:00 ` [PATCH v3 5/5] mm/rmap: add anon folio unmap dispatcher Dev Jain
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=20260725190721.f2e121f118ef817e42bb3874@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=anshuman.khandual@arm.com \
--cc=david@kernel.org \
--cc=dev.jain@arm.com \
--cc=harry@kernel.org \
--cc=jannh@google.com \
--cc=lance.yang@linux.dev \
--cc=liam@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ljs@kernel.org \
--cc=muchun.song@linux.dev \
--cc=osalvador@suse.de \
--cc=riel@surriel.com \
--cc=ryan.roberts@arm.com \
--cc=vbabka@kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.