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 5FB4238C427 for ; Sat, 10 Oct 2026 21:40:07 +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=1791668411; cv=none; b=EcMQbWXY3G+Hf7jhJn+HKGcNxi1ATiBiUxSxucpLKnQkIHailJvG62VLarg/TLTiqhRYRSVtZ53GfCWVj1syvn2nhLJiP82hwt92SMXgP1nLC5le6DsEgUzgg15a9gsADnKZxwK3aaXM4oq+OmPmwLqyh1Uk2BeMCTAm/otW4QU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791668411; c=relaxed/simple; bh=bGZDWXpXPgXVcKGR3gevyVsSf9gaAKUjhdtIpxnXvpc=; h=Date:To:From:Subject:Message-Id; b=XtEcAQpucUtXmfbNBl9FvsPMdPO8cnWMf3V+wbpK+cWtT4cCLv8VftdKKxzkeiMMOkf8ruYgoQEbntXVdLn0xlccvTdd44w82i+bBZGAghNd+cS2eWK4xtHUYA7tkq4FYuKGmn+jMw+5F5HS4q5to4M4eO7GaXXqF/pQfrSJkTo= 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=RKAgZuYr; 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="RKAgZuYr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32EA41F000FF; Sat, 10 Oct 2026 21:40:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791668407; bh=wdFWsp89JT+2nk5Zxo6HKg4ShXikIQ3E6mwBvnsP82c=; h=Date:To:From:Subject; b=RKAgZuYrBpXyyj80RqC/NTohMpQr3oCpFAcdmX8yRZWFomDHFql10jjTa+MULOqY+ hZboH0Jq3ZvQoZB61/cIbdEs+86vwl850r8hOg9L7gYXk153X03se35SqjRB0VvVsa 72rgXtqL76aYArUZfR1oSsI0q/gOuuuxRVK93e6E= Date: Sat, 10 Oct 2026 14:40:06 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] mm-eliminate-vma_special_flags-check-in-lru_gen_look_around.patch removed from -mm tree Message-Id: <20261010214007.32EA41F000FF@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: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around() has been removed from the -mm tree. Its filename was mm-eliminate-vma_special_flags-check-in-lru_gen_look_around.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: "Lorenzo Stoakes (ARM)" Subject: mm: eliminate VMA_SPECIAL_FLAGS check in lru_gen_look_around() Date: Sat, 03 Oct 2026 17:33:05 +0100 A fixed or non-mm-managed mapping is one which sets VMA_PFNMAP_BIT, VMA_MIXEDMAP_BIT or VMA_DONTEXPAND_BIT, which is precisely what VMA_SPECIAL_FLAGS tests for other than VMA_IO_BIT, which is safe to drop as mm-managed mappings may not set it. Using these predicates rather than VMA_SPECIAL_FLAGS makes the check self-documenting and helps eliminate the confusion around 'special' flags. No functional change intended. Link: https://lore.kernel.org/20261003-b4-mmap-prepare-vma-flag-sanify-v4-34-a1f052500fd7@kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Signed-off-by: Andrew Morton Reviewed-by: Zi Yan Acked-by: David Hildenbrand (Arm) Cc: Liam R. Howlett Cc: Vlastimil Babka Cc: Jann Horn Cc: Pedro Falcato Cc: Mike Rapoport Cc: Suren Baghdasaryan Cc: Michal Hocko Cc: Jonathan Corbet Cc: Greg Kroah-Hartman Cc: Dennis Dalessandro Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Paul Moore Cc: Stephen Smalley Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Andrii Nakryiko Cc: Eduard Zingerman Cc: Kumar Kartikeya Dwivedi Cc: Baolin Wang Cc: Nico Pache Cc: Ryan Roberts Cc: Dev Jain Cc: Barry Song Cc: Lance Yang Cc: Usama Arif Cc: Kiryl Shutsemau Cc: Doug Gilbert Cc: James Bottomley Cc: Martin K. Petersen Cc: Simona Vetter Cc: Helge Deller Cc: Sebastian Reichel Cc: John Hubbard Cc: Peter Xu Cc: Masami Hiramatsu Cc: Oleg Nesterov Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: Arnaldo Carvalho de Melo Cc: Namhyung Kim Cc: Mark Rutland Cc: Rik van Riel Cc: Harry Yoo Cc: Juri Lelli Cc: Vincent Guittot Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: David Airlie Cc: Will Deacon Cc: Aneesh Kumar K.V Cc: Nicholas Piggin Cc: Arnd Bergmann Cc: Muchun Song Cc: Oscar Salvador Cc: Matthew Wilcox (Oracle) Cc: Jan Kara Cc: Marc Zyngier Cc: Oliver Upton Cc: Catalin Marinas Cc: Madhavan Srinivasan Cc: Anup Patel Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Christian Borntraeger Cc: Janosch Frank Cc: Claudio Imbrenda Cc: Alexander Gordeev Cc: Gerald Schaefer Cc: Heiko Carstens Cc: Vasily Gorbik Cc: David S. Miller Cc: Andreas Larsson Cc: Al Viro Cc: Christian Brauner Cc: Matthew Brost Cc: Joshua Hahn Cc: Rakie Kim Cc: Byungchul Park Cc: Gregory Price Cc: Ying Huang Cc: Alistair Popple Cc: Chris Li Cc: Kairui Song Cc: Kemeng Shi Cc: Nhat Pham Cc: Baoquan He Cc: Youngjun Park Cc: Johannes Weiner Cc: Qi Zheng Cc: Shakeel Butt Cc: Axel Rasmussen Cc: Yuanchu Xie Cc: Wei Xu Cc: Chengming Zhou Cc: Michal Hocko Cc: Miklos Szeredi Cc: Xu Xin --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/vmscan.c~mm-eliminate-vma_special_flags-check-in-lru_gen_look_around +++ a/mm/vmscan.c @@ -4462,8 +4462,8 @@ bool lru_gen_look_around(struct page_vma if (spin_is_contended(pvmw->ptl)) return true; - /* exclude special VMAs containing anon pages from COW */ - if (vma->vm_flags & VM_SPECIAL) + /* exclude fixed and non-mm-managed VMAs containing anon pages from COW */ + if (!vma_is_mm_managed(vma) || vma_is_fixed_mapping(vma)) return true; /* avoid taking the LRU lock under the PTL when possible */ _ Patches currently in -mm which might be from ljs@kernel.org are mm-avoid-use-of-vma_special_flags-in-migrate_vma_setup.patch mm-eliminate-vm_special-vma_special_flags.patch fuse-dax-do-not-set-vm_mixedmap.patch mm-huge_memory-remove-vma_is_special_huge.patch mm-vma-const-ify-vma_assert_stabilised-and-associated-functions.patch mm-implement-and-use-vma_has_anon_rmap-silence-kcsan.patch mm-update-comments-to-refer-to-anon-rmap-rather-than-anon_vma.patch mm-vma-dont-remove-vma-from-rmap-if-pgoff-unchanged.patch