From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DE22F2FD1CA; Wed, 7 Oct 2026 00:50:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334252; cv=none; b=B2kgSpAoKIr473YxXiTmIVkBCa+zEPzGI4Bi7fkdQEV+++/QuSwgL67hkYqLLMD+aueoJPe0pT07gI+N6ajj2HrLrtgJxDSqSfvWav22MSIG2rKWyxhMIVKM/zaAed0jwb+1yWJUokK3JH+KeTbd4SF6U5S4v97iyDwr5Jzuvvg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334252; c=relaxed/simple; bh=nbQj0vSGgYUAJLYB1K+uSwMg+Kukbral5WUjgDZz+vc=; h=Date:To:From:Subject:Message-Id; b=fE1mpHK1U0ByTRU7+jU6gL1PDTh5aphimKodld0/0e2tC9xTxpW8GsevqoTsQVJFOBAeXMzqo0NpMHzyOojQTfW/h10BVo/XMMjUB/UCNLurr9ifYyaLxRApNLFH+rpHfl3IySZb5EJeICDq8lwl6+tHsSWlqvqujt1El+5YKjc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=UD/lH1RZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="UD/lH1RZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B84551F0089B; Wed, 7 Oct 2026 00:50:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791334250; bh=r5F+av7MbvOlGh5vZBsF6l8r9m5xnFKc/aTq6VcCPGY=; h=Date:To:From:Subject; b=UD/lH1RZuFgyGPGtwZ+q5M0u/ePeXvTLmcTUENMguj+48oEsWtcFXehcCG2p0jza5 L4SfTzxhjDgZazn2V/J79L0LedmfRb9lDc19akl4Gzm0Af18p/RnT14wsh66M1BemI cCR5fkIprwaQzgBtMuGI4sTj/AErD6O1x52Z315w= Date: Tue, 06 Oct 2026 17:50:50 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,ying.huang@linux.alibaba.com,vbabka@kernel.org,stable@vger.kernel.org,ryan.roberts@arm.com,rakie.kim@sk.com,matthew.brost@intel.com,ljs@kernel.org,liam@infradead.org,lance.yang@linux.dev,joshua.hahnjy@gmail.com,jannh@google.com,dev.jain@arm.com,david@kernel.org,byungchul@sk.com,baolin.wang@linux.alibaba.com,baohua@kernel.org,balbirs@nvidia.com,apopple@nvidia.com,gourry@gourry.net,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-madvise-skip-zone-device-folios-in-cold-pageout-pmd-range.patch removed from -mm tree Message-Id: <20261007005050.B84551F0089B@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/madvise: skip zone device folios in cold/pageout PMD range has been removed from the -mm tree. Its filename was mm-madvise-skip-zone-device-folios-in-cold-pageout-pmd-range.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Gregory Price Subject: mm/madvise: skip zone device folios in cold/pageout PMD range Date: Mon, 17 Aug 2026 18:08:09 -0400 madvise_cold_or_pageout_pte_range() resolves the folio backing a PMD via pmd_folio() and ages or reclaims it without checking for zone device memory. The surrounding guards do not cover every zone device case: - can_madv_lru_vma() excludes VM_PFNMAP and VM_HUGETLB VMAs (so device DAX is filtered) - !pmd_present() branch above rejects device-private and migration entries, which are non-present. - A present zone device PMD - e.g. a device-coherent THP - is not filtered by any of these, nor by pmd_folio() (unlike vm_normal_page_pmd(), it performs no special/pfnmap check), and would be aged or paged out here. Skip ZONE_DEVICE folios explicitly during MADV_COLD/PAGEOUT. Link: https://lore.kernel.org/20260817220810.1175596-3-gourry@gourry.net Fixes: a30b48bf1b24 ("mm/migrate_device: implement THP migration of zone device pages") Signed-off-by: Gregory Price (Meta) Signed-off-by: Andrew Morton Acked-by: David Hildenbrand (Arm) Reviewed-by: Lorenzo Stoakes (ARM) Reviewed-by: Balbir Singh Tested-by: Lance Yang Cc: Alistair Popple Cc: Baolin Wang Cc: Barry Song Cc: Byungchul Park Cc: Dev Jain Cc: "Huang, Ying" Cc: Jann Horn Cc: Joshua Hahn Cc: Liam R. Howlett Cc: Matthew Brost Cc: Rakie Kim Cc: Ryan Roberts Cc: Vlastimil Babka Cc: Zi Yan Cc: --- mm/madvise.c | 3 +++ 1 file changed, 3 insertions(+) --- a/mm/madvise.c~mm-madvise-skip-zone-device-folios-in-cold-pageout-pmd-range +++ a/mm/madvise.c @@ -404,6 +404,9 @@ static int madvise_cold_or_pageout_pte_r folio = pmd_folio(orig_pmd); + if (folio_is_zone_device(folio)) + goto huge_unlock; + /* Do not interfere with other mappings of this folio */ if (folio_maybe_mapped_shared(folio)) goto huge_unlock; _ Patches currently in -mm which might be from gourry@gourry.net are mm-memory_hotplug-factor-out-node_is_memoryless.patch mm-mempolicy-use-vm_normal_folio_pmd-in-queue_folios_pmd.patch mm-madvise-use-vm_normal_folio_pmd-in-cold-pageout-pmd-range.patch mm-refactor-find_next_best_node-to-find_next_best_node_in.patch mm-page_alloc-refactor-build_node_zonelist-out-of-build_zonelists.patch proc-task_mmu-handle-special-pmds-in-clear_refs-and-pagemap.patch mm-madvise-reclaim-isolated-folios-if-pte-restart-fails.patch mm-madvise-use-folio_trylock-in-the-cold-pageout-pmd-split.patch