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 9C96A403135 for ; Fri, 9 Oct 2026 05:57:15 +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=1791525436; cv=none; b=cTA/mmjqWHS7W48UIjAmfdslrbsM8L4AVY02c/bClZX8p4s9D/SsYNAL+oQ38aTWcJ9f0lWT55oGmyOtU2FxN4UehEibiw5KeeBE35hjFk9YEeprPnijP0h9PQi5PTq3wCjYrkRCe2DaBZm0plbkA7oB604Vi4bVEV5496P74s8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791525436; c=relaxed/simple; bh=Nm1XsTtIIzqH0jkUscjFTJ0kYBV8VfgP3Xk/4rCdOSg=; h=Date:To:From:Subject:Message-Id; b=SR7r5OdHdsSDz7RZwHYJ0IA0USXbBzXsSeTT1Az8nPrGbTM8HW4cO/TMHfyRo2B8E/UskM13sXt7TZsP99awtw702BE52khhIr0TD2MgGLq6i2hymxWkX3WUZuxrImjk+tXv7bVakVymYOO8rfeA2RG9m61OYYG8PHAIlD3AO/I= 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=cTnjfECA; 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="cTnjfECA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D6CF1F000FF; Fri, 9 Oct 2026 05:57:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791525435; bh=RqT7TGjkfMXdUB/N1YqMRJgfsUvWdM3v8vgluzCMKJs=; h=Date:To:From:Subject; b=cTnjfECAbKtokBFsBazSNmpjrKQVP7OiVS9BJk/mCcPGEfhT9Nx/UCFE0fWDqc0kk TooR4yI2mqE++zdef/csRo5h1FcBtkfnsAukYSQq9pf9Uy0/Hjq7cSP/CuDXBpsjR5 1t3Xh6apuakk1s4bDJUZjezUgdGNlUuNNaUx0WdI= Date: Thu, 08 Oct 2026 22:57:15 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,will@kernel.org,vbabka@kernel.org,shikemeng@huaweicloud.com,ryan.roberts@arm.com,riel@surriel.com,nphamcs@gmail.com,mark.rutland@arm.com,ljs@kernel.org,liam@infradead.org,lance.yang@linux.dev,kasong@tencent.com,kas@kernel.org,jannh@google.com,harry@kernel.org,hannes@cmpxchg.org,dev.jain@arm.com,david@kernel.org,chrisl@kernel.org,chengming.zhou@linux.dev,catalin.marinas@arm.com,baoquan.he@linux.dev,baolin.wang@linux.alibaba.com,baohua@kernel.org,tz2294@columbia.edu,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-huge_memory-add-a-comment-to-the-open-coded-swap-entry.patch removed from -mm tree Message-Id: <20261009055715.6D6CF1F000FF@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/huge_memory: add a comment to the open-coded swap entry has been removed from the -mm tree. Its filename was mm-huge_memory-add-a-comment-to-the-open-coded-swap-entry.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: Tal Zussman Subject: mm/huge_memory: add a comment to the open-coded swap entry Date: Tue, 08 Sep 2026 11:16:32 -0400 The swap entry of each new folio in __split_folio_to_order() is computed by hand from folio->swap rather than with folio_swap_entry(), because the folio's page count is not valid while it is being split. Add a comment explaining this. Link: https://lore.kernel.org/20260908-folio_swap_entry-v2-2-ee6d01dfa5e1@columbia.edu Signed-off-by: Tal Zussman Signed-off-by: Andrew Morton Reviewed-by: Zi Yan Acked-by: David Hildenbrand (Arm) Cc: Baolin Wang Cc: Baoquan He Cc: Barry Song Cc: Catalin Marinas Cc: Chengming Zhou Cc: Chris Li Cc: Dev Jain Cc: Harry Yoo Cc: Jann Horn Cc: Johannes Weiner Cc: Kairui Song Cc: Kemeng Shi Cc: Kiryl Shutsemau Cc: Lance Yang Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Marc Rutland Cc: Nhat Pham Cc: Rik van Riel Cc: Ryan Roberts Cc: Vlastimil Babka Cc: Will Deacon --- mm/huge_memory.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/mm/huge_memory.c~mm-huge_memory-add-a-comment-to-the-open-coded-swap-entry +++ a/mm/huge_memory.c @@ -3762,6 +3762,10 @@ static void __split_folio_to_order(struc */ VM_WARN_ON_ONCE_PAGE(new_folio->private, new_head); + /* + * Not all folio fields are valid during a split, so open-code + * the swap entry rather than using folio_swap_entry(). + */ if (folio_test_swapcache(folio)) new_folio->swap.val = folio->swap.val + i; _ Patches currently in -mm which might be from tz2294@columbia.edu are mm-memcontrol-take-a-const-folio-in-folio_memcg-and-friends.patch mm-memcontrol-constify-obj_cgroup_memcg-and-friends.patch mm-memcontrol-constify-the-lruvec-helpers.patch mm-page_io-take-a-const-folio-in-bio_associate_blkg_from_folio.patch mm-memcontrol-constify-the-mem_cgroup-accessors.patch mm-page_counter-constify-page_counter_read-and-page_counter_margin.patch mm-memcontrol-constify-the-reclaim-protection-helpers.patch mm-memcontrol-constify-the-memcg-and-lruvec-stat-readers.patch mm-memcontrol-constify-the-swap-accounting-helpers.patch mm-memcontrol-constify-mem_cgroup_swappiness-and-mem_cgroup_get_max.patch mm-memcontrol-constify-the-zswap-and-socket-pressure-helpers.patch vmcore-convert-mmap_vmcore_fault-to-use-folios.patch