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 618E33B27F8 for ; Sat, 3 Oct 2026 22:39:18 +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=1791067160; cv=none; b=hDmUSY89UsN+IXuXVgYlMftky9SgBxjRg+RXUhtSLoZsFhfshcTP5CGAfoIwzkVigrpIv+Ecq3BMnBhHrf85U87uCcJyjlqZ5TD0eezHrio6nexD/aXablx5ZQuuj4RB/EyC2BCJEZxsxFTC/Rg20NX6vOUN0ZpxJDWpF+eA59g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791067160; c=relaxed/simple; bh=CJyuqp3j9CU79HXEDiXrjTqRQ8ADcUikESn8iv9ocq0=; h=Date:To:From:Subject:Message-Id; b=PwXoQXZ4fe6V+fvoGxBBNsXTy7dOYO/cwD9vlQG341kISXPM0KZWxcnSYc7Qqa2QtiUrf7nfjM94227TPAeUd+jqGVaYs8wU4E1YOHZ50rlF3wg2zfIzAFH0gxprqwn2tP+H/vJU7kWadEoVrb7KI6TCUQfmnXKM9LJ6hR+ASnc= 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=G6iKetKS; 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="G6iKetKS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 363461F0089B; Sat, 3 Oct 2026 22:39:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791067158; bh=kiQdfoSthNkonXWrjjuYu8pyWNha/UGuucbZTOr3J/Y=; h=Date:To:From:Subject; b=G6iKetKSSC86TuQl8XQfiU+KoUK0Utw6iHmGzvTaGL11/xQ3jaYJngoljxUXiFvCd AD7jpawr8NSc8zkAAwUaOhks4YbTblcL75epDONjmir9QscocIsSPN0K7hNKxKl3OB ZoJ9AzEPBXo8TlrK06jIkYNm+OVsHRidPsZW6KLQ= Date: Sat, 03 Oct 2026 15:39:17 -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: <20261003223918.363461F0089B@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: Thu, 17 Sep 2026 17:22:47 +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 kernel-owned, 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 kernel-owned check explicitly. There is no reason for fuse DAX to keep on using this flag so drop it. Link: https://lore.kernel.org/20260917-b4-mmap-prepare-vma-flag-sanify-v3-38-4583d8a23bca@kernel.org Signed-off-by: Lorenzo Stoakes (ARM) Signed-off-by: Andrew Morton Acked-by: David Hildenbrand (Arm) Cc: Albert Ou Cc: Alexander Gordeev Cc: Alexei Starovoitov Cc: Alistair Popple Cc: Al Viro Cc: Andreas Larsson Cc: Andrii Nakryiko Cc: "Aneesh Kumar K.V" Cc: Anup Patel Cc: Arnaldo Carvalho de Melo Cc: Arnd Bergmann Cc: Axel Rasmussen Cc: Baolin Wang Cc: Baoquan He Cc: Barry Song Cc: "Borislav Petkov (AMD)" Cc: Byungchul Park Cc: Catalin Marinas Cc: Chengming Zhou Cc: Chris Li Cc: Christian Borntraeger Cc: Christian Brauner Cc: Claudio Imbrenda Cc: Dave Airlie Cc: Dave Hansen Cc: David S. Miller Cc: Dennis Dalessandro Cc: Dev Jain Cc: Doug Gilbert Cc: Eduard Zingerman Cc: Emil Tsalapatis Cc: Gerald Schaefer Cc: Greg Kroah-Hartman Cc: Gregory Price Cc: Harry Yoo Cc: Heiko Carstens Cc: Helge Deller Cc: "Huang, Ying" Cc: Ingo Molnar Cc: James Bottomley Cc: Jan Kara Cc: Jann Horn Cc: Janosch Frank Cc: Jaroslav Kysela Cc: Jason Gunthorpe Cc: Jaya Kumar Cc: Johannes Weiner Cc: John Hubbard Cc: Jonathan Corbet Cc: Joshua Hahn Cc: Juri Lelli Cc: Kairui Song Cc: Kemeng Shi Cc: Kiryl Shutsemau Cc: Kumar Kartikeya Dwivedi Cc: Lance Yang Cc: Leon Romanovsky Cc: Liam R. Howlett Cc: Maarten Lankhorst Cc: Madhavan Srinivasan Cc: Marc Rutland Cc: Marc Zyngier Cc: "Masami Hiramatsu (Google)" Cc: Matthew Brost Cc: Matthew Wilcox (Oracle) Cc: Maxime Ripard Cc: Michal Hocko Cc: Michal Hocko Cc: Mike Rapoport Cc: Miklos Szeredi Cc: Muchun Song Cc: Namhyung kim Cc: Nhat Pham Cc: Nicholas Piggin Cc: Oleg Nesterov Cc: Oscar Salvador Cc: Palmer Dabbelt Cc: Paul Moore Cc: Pedro Falcato Cc: Peter Xu Cc: Peter Zijlstra Cc: Rakie Kim Cc: Rik van Riel Cc: Ryan Roberts Cc: Sebastian Reichel Cc: Shakeel Butt Cc: Stephen Smalley Cc: Suren Baghdasaryan Cc: Takashi Iwai (SUSE) Cc: Takashi Iwai Cc: Thomas Zimemrmann Cc: Vasily Gorbik Cc: Vincent Guittot Cc: Vlastimil Babka Cc: Wei Xu Cc: Will Deacon Cc: Yuanchu Xie Cc: Zi Yan --- 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-mremap-fix-locked_vm-leak-from-mremap_dontunmap-self-merge.patch mm-mremap-fix-locked_vm-leak-by-splitting-vma-for-mremap_dontunmap.patch drivers-char-mem-mmap-readonly-map_shared-dev-zero-correctly.patch mm-vmpressure-remove-window-size-todo.patch tools-testing-selftests-mm-add-missing-gitignore-entries.patch mm-move-drivers-char-memc-to-mm-char-memc.patch mm-implement-file_is_dev_zero-to-uniquely-identify-dev-zero.patch mm-vma-only-permit-map_private-dev-zero-to-be-mapped-anonymous.patch mm-vma-make-map_private-mapped-dev-zero-mappings-truly-anonymous.patch tools-testing-vma-add-test-to-assert-map_private-dev-zero-is-anon.patch tools-testing-selftests-mm-add-map_private-dev-zero-merge-tests.patch mm-madvise-swap-in-cowd-map_private-file-mappings-on-madv_willneed.patch mm-khugepaged-deposit-a-newly-allocated-page-table-on-collapse.patch mm-enable-mmu_gather_rcu_table_free-for-most-2-level-architectures.patch mm-enable-mmu_gather_rcu_table_free-for-mmu-riscv.patch mm-enable-mmu_gather_rcu_table_free-for-mmu-arm.patch mm-enable-mmu_gather_rcu_table_free-for-arc-microblaze-xtensa.patch mm-enable-mmu_gather_rcu_table_free-for-sparc64.patch mm-enable-mmu_gather_rcu_table_free-for-m68k-coldfire.patch mm-enable-mmu_gather_rcu_table_free-for-sh-x2.patch mm-enable-mmu_gather_rcu_table_free-for-m68k-motorola.patch mm-enable-mmu_gather_rcu_table_free-for-sparc32.patch mm-userland-pgtable-freeing-is-rcu-safe-now-remove-leftover-bits.patch mm-change-the-contract-for-free_pgtables-update-docs.patch mm-huge_memory-remove-vma_is_special_huge.patch mm-vma-introduce-and-use-vma_can_gup.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