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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 16/20] mm/vma: introduce vma_clear_flags[_mask]() Date: Thu, 12 Mar 2026 19:16:14 +0000 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 4409A180010 X-Stat-Signature: nhutdtowoeykn5y9z3eijmoubh51atwg X-HE-Tag: 1773343034-684298 X-HE-Meta: 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 oHVGsaq/ AsJL0WahOVkA7qi0bLyCy87060INUwWflPP2svom0mfj8e0rFLdalI9e9ShhB09Q5bEDPu3NoS/vJIcapVCc8kZhm4lJ55s9NsB2H5lYMONUNKdcggUdKa3DVDfxhgQF+E33nPHUAnChduGp8KtsRKFo6wmK5oDrPbfgN2yFm2c2TsF04jkcph33DNCtAtV7ta07k8bRz/1tDuUd+/UVgIRa62jo+lShdZS3nsYqBOC1Ybhoaxo6ZPhCSVJeJx7YECRyYV+8jKnyHGcamC48QGlXlfadezEHtRyITCmHpAXL5cK1sb90Z41SDXdDujT15yM0FA+ahJ4AQF7YszOe4l4dymjw0T7Nmh3ON 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 4b574d941ea3..bec1b43efa50 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1324,6 +1324,22 @@ 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 70cabacdb9cc..81bd34c62c75 100644 --- a/tools/testing/vma/include/dup.h +++ b/tools/testing/vma/include/dup.h @@ -1039,6 +1039,15 @@ 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