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Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Mike Rapoport , Suren Baghdasaryan , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Brian Cain , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Dinh Nguyen , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Richard Weinberger , Anton Ivanov , Johannes Berg , Alexander Viro , Christian Brauner , Jan Kara , Xu Xin , Chengming Zhou , Michal Hocko , Paul Moore , Stephen Smalley , Ondrej Mosnacek , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-fsdevel@vger.kernel.org, selinux@vger.kernel.org Subject: [PATCH v2 19/23] mm/vma: introduce vma_clear_flags[_mask]() Date: Mon, 16 Mar 2026 13:08:08 +0000 Message-ID: <397c67b154a4868e19db9be1012e976148901de2.1773665966.git.ljs@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 7ejthpgwymg8xspaz8h31trdt88rf6xw X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: 90BB720019 X-HE-Tag: 1773666589-54799 X-HE-Meta: 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 E5tqhxCh 75pR3X5iUWXIuNyKZCm5iBgZ0kz0XPQT3bMK9UY7gg9wyzNi3voR9+TZJv/uuecUZrXeesq35h+0t9f7BXfshOc7UU4OBiJ0rmW7aBa2WJGGr3czWK300d+PgXdANe2E/Mt6dgZFlG6dIN108WDXtygvw0SKbnUUNRZ0zeVlMoDq+gjmAxS/oKB+LtLE7rr4rX2sk9FM1mf5O3Q16iw5GIEXNe/fgc9hCu3YjTHKH0x7sdFh9LESM7Gv7n6QVd/Pg3auEHbgnj5xBk0n/xnZK+aNFazcVE2uEFrdpMSN0n/0+JCx1Xn7RsV/8x+bxm5AhM17u0EIRwEqivnhVVoCxabpSYj316h5CoTEN Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Introduce a helper function and helper macro to easily clear a VMA's flags using the new vma_flags_t vma->flags field: * vma_clear_flags_mask() - Clears all of the flags in a specified mask in the VMA's flags field. * vma_clear_flags() - Clears all of the specified individual VMA flag bits in a VMA's flags field. Also update the VMA tests to reflect the change. Signed-off-by: Lorenzo Stoakes (Oracle) --- include/linux/mm.h | 16 ++++++++++++++++ tools/testing/vma/include/dup.h | 9 +++++++++ 2 files changed, 25 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index eb1cbb60e63b..4ba1229676ad 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1368,6 +1368,22 @@ static __always_inline void vma_set_flags_mask(struct vm_area_struct *vma, #define vma_set_flags(vma, ...) \ vma_set_flags_mask(vma, mk_vma_flags(__VA_ARGS__)) +/* Helper to clear all VMA flags in a VMA. */ +static __always_inline void vma_clear_flags_mask(struct vm_area_struct *vma, + vma_flags_t flags) +{ + vma_flags_clear_mask(&vma->flags, flags); +} + +/* + * Helper macro for clearing VMA flags, e.g.: + * + * vma_clear_flags(vma, VMA_IO_BIT, VMA_PFNMAP_BIT, VMA_DONTEXPAND_BIT, + * VMA_DONTDUMP_BIT); + */ +#define vma_clear_flags(vma, ...) \ + vma_clear_flags_mask(vma, mk_vma_flags(__VA_ARGS__)) + /* * Test whether a specific VMA flag is set in a VMA descriptor, e.g.: * diff --git a/tools/testing/vma/include/dup.h b/tools/testing/vma/include/dup.h index e68d3eb78178..1c4a58f11852 100644 --- a/tools/testing/vma/include/dup.h +++ b/tools/testing/vma/include/dup.h @@ -1063,6 +1063,15 @@ static __always_inline void vma_set_flags_mask(struct vm_area_struct *vma, #define vma_set_flags(vma, ...) \ vma_set_flags_mask(vma, mk_vma_flags(__VA_ARGS__)) +static __always_inline void vma_clear_flags_mask(struct vm_area_struct *vma, + vma_flags_t flags) +{ + vma_flags_clear_mask(&vma->flags, flags); +} + +#define vma_clear_flags(vmag, ...) \ + vma_clear_flags_mask(vmag, mk_vma_flags(__VA_ARGS__)) + static __always_inline bool vma_desc_test(const struct vm_area_desc *desc, vma_flag_t bit) { -- 2.53.0