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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Pedro Falcato , David Rientjes , Shakeel Butt , "Matthew Wilcox (Oracle)" , Alice Ryhl , Madhavan Srinivasan , Michael Ellerman , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Jarkko Sakkinen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Greg Kroah-Hartman , =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= , Todd Kjos , Christian Brauner , Carlos Llamas , Ian Abbott , H Hartley Sweeten , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Simona Vetter , Jason Gunthorpe , Leon Romanovsky , Dimitri Sivanich , Arnd Bergmann , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Andy Lutomirski , Vincenzo Frascino , Eric Dumazet , Neal Cardwell , "David S. Miller" , David Ahern , Jakub Kicinski , Paolo Abeni , Miguel Ojeda , linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-sgx@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-fsdevel@vger.kernel.org, netdev@vger.kernel.org, rust-for-linux@vger.kernel.org, x86@kernel.org Subject: [PATCH v1 03/16] mm/memory: inline unmap_mapping_range_vma() into unmap_mapping_range_tree() Date: Fri, 27 Feb 2026 21:08:34 +0100 Message-ID: <20260227200848.114019-4-david@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260227200848.114019-1-david@kernel.org> References: <20260227200848.114019-1-david@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Let's remove the number of unmap-related functions that cause confusion by inlining unmap_mapping_range_vma() into its single caller. The end result looks pretty readable. Signed-off-by: David Hildenbrand (Arm) --- mm/memory.c | 23 +++++++---------------- 1 file changed, 7 insertions(+), 16 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 19f5f9a60995..5c47309331f5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4221,18 +4221,6 @@ static vm_fault_t do_wp_page(struct vm_fault *vmf) return wp_page_copy(vmf); } -static void unmap_mapping_range_vma(struct vm_area_struct *vma, - unsigned long start_addr, unsigned long end_addr, - struct zap_details *details) -{ - struct mmu_gather tlb; - - tlb_gather_mmu(&tlb, vma->vm_mm); - zap_page_range_single_batched(&tlb, vma, start_addr, - end_addr - start_addr, details); - tlb_finish_mmu(&tlb); -} - static inline void unmap_mapping_range_tree(struct rb_root_cached *root, pgoff_t first_index, pgoff_t last_index, @@ -4240,17 +4228,20 @@ static inline void unmap_mapping_range_tree(struct rb_root_cached *root, { struct vm_area_struct *vma; pgoff_t vba, vea, zba, zea; + unsigned long start, size; + struct mmu_gather tlb; vma_interval_tree_foreach(vma, root, first_index, last_index) { vba = vma->vm_pgoff; vea = vba + vma_pages(vma) - 1; zba = max(first_index, vba); zea = min(last_index, vea); + start = ((zba - vba) << PAGE_SHIFT) + vma->vm_start; + size = (zea - zba + 1) << PAGE_SHIFT; - unmap_mapping_range_vma(vma, - ((zba - vba) << PAGE_SHIFT) + vma->vm_start, - ((zea - vba + 1) << PAGE_SHIFT) + vma->vm_start, - details); + tlb_gather_mmu(&tlb, vma->vm_mm); + zap_page_range_single_batched(&tlb, vma, start, size, details); + tlb_finish_mmu(&tlb); } } -- 2.43.0