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 1EE8738DC6B for ; Sat, 10 Oct 2026 21:40:12 +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=1791668414; cv=none; b=Ch/tntvKmL9hXlwTji1hmG2gARQCQWsLK2J6NgtqYolZhk3gZzxLkI1vg3gJqkjZPhmmk+DUhbnlMlmdAXtGYM++siA0HwXQ33QDvpJf0P5I++suBpOJuecQBXwo5bN+3a/9qSdGLeJ7+kDTTwHHP3cYOV0frrbiQv9uoUNpFLk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791668414; c=relaxed/simple; bh=QVSNUs2rhAmNONq7m/+9EB13IVa+DlLMbYLrr0w8Yv0=; h=Date:To:From:Subject:Message-Id; b=MTL7eVy/B7IvS+BKZBGRXRdjU5jreW98YsW7y5lqSa3f1Zls0YmeEduKpVbxisbjydVHNwVk4N/edgjCMmzHU6L9vhLDMr04bVoZ1R5M3kR3rQJI5AvEzm93pY46szeuGA7iY2OLy/jwvy9VkGRSmuw/Mz1K2UO33F1awf2lcQ8= 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=OsO9Ypan; 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="OsO9Ypan" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E73711F000FF; Sat, 10 Oct 2026 21:40:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791668412; bh=mwatD8ftyP1c4X7Tnh3DgxQ8Jm1s754+L1h5nvxb7ks=; h=Date:To:From:Subject; b=OsO9Ypan/mVnZV1A2Cvs+weYF09Uuaqg1KCNomsBYQ7GPSuPAt+282VNbcb2LmXa7 EanFNMUn1lhue/e1iXSA5DbnR1+uXvULp/62J4R3S7eEQyVwRCJPO5saM41Xww8tYF 1xvaHs21agtXAEKY0uE+h/SDCgFNw0nQ/X6hItlc= Date: Sat, 10 Oct 2026 14:40:11 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] fuse-dax-do-not-set-vm_mixedmap.patch removed from -mm tree Message-Id: <20261010214011.E73711F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: fuse: dax: do not set VM_MIXEDMAP has been removed from the -mm tree. Its filename was fuse-dax-do-not-set-vm_mixedmap.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: "Lorenzo Stoakes (ARM)" Subject: fuse: dax: do not set VM_MIXEDMAP Date: Sat, 03 Oct 2026 17:33:08 +0100 Commit e1fb4a086495 ("dax: remove VM_MIXEDMAP for fsdax and device dax") prevented fsdax and device-dax from setting VM_MIXEDMAP, as DAX no longer relies on it to direct core mm paths. The fuse DAX implementation, added later, copied the old pattern and still sets it. Fuse DAX maps pages the same way fsdax does, via dax_iomap_fault() and ultimately vmf_insert_page_mkwrite() and vmf_insert_folio_pmd(), which insert ordinary refcounted pages and so do not require VM_MIXEDMAP. Setting it only serves to mark the mapping as not mm-managed, making fuse DAX the sole DAX implementation whose mappings are unmergeable, cannot be mlock()'d, eagerly copy page tables on fork and reject MADV_DOFORK and MADV_DODUMP. It also requires vma_is_special_huge() in mm/huge_memory.c to carve DAX out of its check for mappings not managed by core mm explicitly. There is no reason for fuse DAX to keep on using this flag so drop it. Link: https://lore.kernel.org/20261003-b4-mmap-prepare-vma-flag-sanify-v4-37-a1f052500fd7@kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Signed-off-by: Andrew Morton 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: Zi Yan 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 --- fs/fuse/dax.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/fuse/dax.c~fuse-dax-do-not-set-vm_mixedmap +++ a/fs/fuse/dax.c @@ -826,7 +826,7 @@ int fuse_dax_mmap(struct file *file, str { file_accessed(file); vma->vm_ops = &fuse_dax_vm_ops; - vm_flags_set(vma, VM_MIXEDMAP | VM_HUGEPAGE); + vma_set_flags(vma, VMA_HUGEPAGE_BIT); return 0; } _ Patches currently in -mm which might be from ljs@kernel.org are 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