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GET /api/patches/2202523/?format=api
{ "id": 2202523, "url": "http://patchwork.ozlabs.org/api/patches/2202523/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260227200848.114019-3-david@kernel.org/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260227200848.114019-3-david@kernel.org>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260227200848.114019-3-david@kernel.org/", "date": "2026-02-27T20:08:33", "name": "[v1,02/16] mm/memory: remove \"zap_details\" parameter from zap_page_range_single()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "24dfb01b7ea6ad6d712a29f2458dca86c2c14438", "submitter": { "id": 92023, "url": "http://patchwork.ozlabs.org/api/people/92023/?format=api", "name": "David Hildenbrand (Arm)", "email": "david@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260227200848.114019-3-david@kernel.org/mbox/", "series": [ { "id": 493807, "url": "http://patchwork.ozlabs.org/api/series/493807/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=493807", "date": "2026-02-27T20:08:31", "name": "mm: cleanups around unmapping / zapping", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/493807/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2202523/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2202523/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-17410-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=BQHY4VRD;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1772222982;\n\tbh=6rt1gIIqFtg8jcYMpGLsIsLBZas8CDATuKxsRIDKO5Y=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=BQHY4VRDSRTvpeKP+Itjk0UhkFl4s6G0uWMMDvYg1M2w57rF10GCj3c7odrrE5wWN\n\t VjrTpoY8Likic/JjgXgS14dJIl3eUZ+6M5FwyltQNCNf2ZuaYyTOBZf69RquFDnukC\n\t /4wLEeUtMJTFa/NRhc7WEM5x4w8QBOkBoTOacpxlvIgCCK+7PdgrNRjoDeCbwwYTJy\n\t FrznIcjK8BKOGMZ+Q63lAvvbNqww0pS1F9QN17GlyDPjQCPwrahp30ffoNjNZsJBgM\n\t IwdPAjvbaRoao5DNrG4O31TKtodgkmB+weVPUOBXFPAp6h+0N6Lq2+n4vSxzms/JLJ\n\t 4LcC9G37N3BFg==", "From": "\"David Hildenbrand (Arm)\" <david@kernel.org>", "To": "linux-kernel@vger.kernel.org", "Cc": "\"linux-mm @ kvack . org\" <linux-mm@kvack.org>,\n \"David Hildenbrand (Arm)\" <david@kernel.org>,\n Andrew Morton <akpm@linux-foundation.org>,\n Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,\n \"Liam R. Howlett\" <Liam.Howlett@oracle.com>,\n Vlastimil Babka <vbabka@kernel.org>, Mike Rapoport <rppt@kernel.org>,\n Suren Baghdasaryan <surenb@google.com>, Michal Hocko <mhocko@suse.com>,\n Jann Horn <jannh@google.com>, Pedro Falcato <pfalcato@suse.de>,\n David Rientjes <rientjes@google.com>, Shakeel Butt <shakeel.butt@linux.dev>,\n \"Matthew Wilcox (Oracle)\" <willy@infradead.org>,\n Alice Ryhl <aliceryhl@google.com>, Madhavan Srinivasan <maddy@linux.ibm.com>,\n Michael Ellerman <mpe@ellerman.id.au>,\n Christian Borntraeger <borntraeger@linux.ibm.com>,\n Janosch Frank <frankja@linux.ibm.com>,\n Claudio Imbrenda <imbrenda@linux.ibm.com>,\n Alexander Gordeev <agordeev@linux.ibm.com>,\n Gerald Schaefer <gerald.schaefer@linux.ibm.com>,\n Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>,\n Jarkko Sakkinen <jarkko@kernel.org>, Thomas Gleixner <tglx@kernel.org>,\n Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,\n Greg Kroah-Hartman <gregkh@linuxfoundation.org>, =?utf-8?q?Arve_Hj=C3=B8nne?=\n\t=?utf-8?q?v=C3=A5g?= <arve@android.com>, Todd Kjos <tkjos@android.com>,\n Christian Brauner <brauner@kernel.org>, Carlos Llamas <cmllamas@google.com>,\n Ian Abbott <abbotti@mev.co.uk>,\n H Hartley Sweeten <hsweeten@visionengravers.com>,\n Jani Nikula <jani.nikula@linux.intel.com>,\n Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,\n Rodrigo Vivi <rodrigo.vivi@intel.com>, Tvrtko Ursulin <tursulin@ursulin.net>,\n David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,\n Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,\n Dimitri Sivanich <dimitri.sivanich@hpe.com>, Arnd Bergmann <arnd@arndb.de>,\n Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>,\n Andrii Nakryiko <andrii@kernel.org>, Peter Zijlstra <peterz@infradead.org>,\n Arnaldo Carvalho de Melo <acme@kernel.org>,\n Namhyung Kim <namhyung@kernel.org>, Andy Lutomirski <luto@kernel.org>,\n Vincenzo Frascino <vincenzo.frascino@arm.com>,\n Eric Dumazet <edumazet@google.com>, Neal Cardwell <ncardwell@google.com>,\n \"David S. Miller\" <davem@davemloft.net>, David Ahern <dsahern@kernel.org>,\n Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,\n Miguel Ojeda <ojeda@kernel.org>, linuxppc-dev@lists.ozlabs.org,\n kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-sgx@vger.kernel.org,\n intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,\n linux-rdma@vger.kernel.org, bpf@vger.kernel.org,\n linux-perf-users@vger.kernel.org, linux-fsdevel@vger.kernel.org,\n netdev@vger.kernel.org, rust-for-linux@vger.kernel.org, x86@kernel.org", "Subject": "[PATCH v1 02/16] mm/memory: remove \"zap_details\" parameter from\n zap_page_range_single()", "Date": "Fri, 27 Feb 2026 21:08:33 +0100", "Message-ID": "<20260227200848.114019-3-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": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Spam-Status": "No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Nobody except memory.c should really set that parameter to non-NULL. So\nlet's just drop it and make unmap_mapping_range_vma() use\nzap_page_range_single_batched() instead.\n\nSigned-off-by: David Hildenbrand (Arm) <david@kernel.org>\n---\n arch/s390/mm/gmap_helpers.c | 2 +-\n drivers/android/binder_alloc.c | 2 +-\n include/linux/mm.h | 5 ++---\n kernel/bpf/arena.c | 3 +--\n kernel/events/core.c | 2 +-\n mm/madvise.c | 3 +--\n mm/memory.c | 16 ++++++++++------\n net/ipv4/tcp.c | 5 ++---\n rust/kernel/mm/virt.rs | 2 +-\n 9 files changed, 20 insertions(+), 20 deletions(-)", "diff": "diff --git a/arch/s390/mm/gmap_helpers.c b/arch/s390/mm/gmap_helpers.c\nindex dea83e3103e5..ae2d59a19313 100644\n--- a/arch/s390/mm/gmap_helpers.c\n+++ b/arch/s390/mm/gmap_helpers.c\n@@ -89,7 +89,7 @@ void gmap_helper_discard(struct mm_struct *mm, unsigned long vmaddr, unsigned lo\n \t\tif (!vma)\n \t\t\treturn;\n \t\tif (!is_vm_hugetlb_page(vma))\n-\t\t\tzap_page_range_single(vma, vmaddr, min(end, vma->vm_end) - vmaddr, NULL);\n+\t\t\tzap_page_range_single(vma, vmaddr, min(end, vma->vm_end) - vmaddr);\n \t\tvmaddr = vma->vm_end;\n \t}\n }\ndiff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c\nindex 241f16a9b63d..dd2046bd5cde 100644\n--- a/drivers/android/binder_alloc.c\n+++ b/drivers/android/binder_alloc.c\n@@ -1185,7 +1185,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,\n \tif (vma) {\n \t\ttrace_binder_unmap_user_start(alloc, index);\n \n-\t\tzap_page_range_single(vma, page_addr, PAGE_SIZE, NULL);\n+\t\tzap_page_range_single(vma, page_addr, PAGE_SIZE);\n \n \t\ttrace_binder_unmap_user_end(alloc, index);\n \t}\ndiff --git a/include/linux/mm.h b/include/linux/mm.h\nindex ecff8268089b..a8138ff7d1fa 100644\n--- a/include/linux/mm.h\n+++ b/include/linux/mm.h\n@@ -2835,11 +2835,10 @@ struct page *vm_normal_page_pud(struct vm_area_struct *vma, unsigned long addr,\n void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,\n \t\t unsigned long size);\n void zap_page_range_single(struct vm_area_struct *vma, unsigned long address,\n-\t\t\t unsigned long size, struct zap_details *details);\n+\t\t\t unsigned long size);\n static inline void zap_vma_pages(struct vm_area_struct *vma)\n {\n-\tzap_page_range_single(vma, vma->vm_start,\n-\t\t\t vma->vm_end - vma->vm_start, NULL);\n+\tzap_page_range_single(vma, vma->vm_start, vma->vm_end - vma->vm_start);\n }\n struct mmu_notifier_range;\n \ndiff --git a/kernel/bpf/arena.c b/kernel/bpf/arena.c\nindex 144f30e740e8..c34510d83b1f 100644\n--- a/kernel/bpf/arena.c\n+++ b/kernel/bpf/arena.c\n@@ -656,8 +656,7 @@ static void zap_pages(struct bpf_arena *arena, long uaddr, long page_cnt)\n \tguard(mutex)(&arena->lock);\n \t/* iterate link list under lock */\n \tlist_for_each_entry(vml, &arena->vma_list, head)\n-\t\tzap_page_range_single(vml->vma, uaddr,\n-\t\t\t\t PAGE_SIZE * page_cnt, NULL);\n+\t\tzap_page_range_single(vml->vma, uaddr, PAGE_SIZE * page_cnt);\n }\n \n static void arena_free_pages(struct bpf_arena *arena, long uaddr, long page_cnt, bool sleepable)\ndiff --git a/kernel/events/core.c b/kernel/events/core.c\nindex ac70d68217b6..c94c56c94104 100644\n--- a/kernel/events/core.c\n+++ b/kernel/events/core.c\n@@ -7215,7 +7215,7 @@ static int map_range(struct perf_buffer *rb, struct vm_area_struct *vma)\n #ifdef CONFIG_MMU\n \t/* Clear any partial mappings on error. */\n \tif (err)\n-\t\tzap_page_range_single(vma, vma->vm_start, nr_pages * PAGE_SIZE, NULL);\n+\t\tzap_page_range_single(vma, vma->vm_start, nr_pages * PAGE_SIZE);\n #endif\n \n \treturn err;\ndiff --git a/mm/madvise.c b/mm/madvise.c\nindex efc04334a000..557a360f7919 100644\n--- a/mm/madvise.c\n+++ b/mm/madvise.c\n@@ -1193,8 +1193,7 @@ static long madvise_guard_install(struct madvise_behavior *madv_behavior)\n \t\t * OK some of the range have non-guard pages mapped, zap\n \t\t * them. This leaves existing guard pages in place.\n \t\t */\n-\t\tzap_page_range_single(vma, range->start,\n-\t\t\t\trange->end - range->start, NULL);\n+\t\tzap_page_range_single(vma, range->start, range->end - range->start);\n \t}\n \n \t/*\ndiff --git a/mm/memory.c b/mm/memory.c\nindex 9385842c3503..19f5f9a60995 100644\n--- a/mm/memory.c\n+++ b/mm/memory.c\n@@ -2203,17 +2203,16 @@ void zap_page_range_single_batched(struct mmu_gather *tlb,\n * @vma: vm_area_struct holding the applicable pages\n * @address: starting address of pages to zap\n * @size: number of bytes to zap\n- * @details: details of shared cache invalidation\n *\n * The range must fit into one VMA.\n */\n void zap_page_range_single(struct vm_area_struct *vma, unsigned long address,\n-\t\tunsigned long size, struct zap_details *details)\n+\t\tunsigned long size)\n {\n \tstruct mmu_gather tlb;\n \n \ttlb_gather_mmu(&tlb, vma->vm_mm);\n-\tzap_page_range_single_batched(&tlb, vma, address, size, details);\n+\tzap_page_range_single_batched(&tlb, vma, address, size, NULL);\n \ttlb_finish_mmu(&tlb);\n }\n \n@@ -2235,7 +2234,7 @@ void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,\n \t \t\t!(vma->vm_flags & VM_PFNMAP))\n \t\treturn;\n \n-\tzap_page_range_single(vma, address, size, NULL);\n+\tzap_page_range_single(vma, address, size);\n }\n EXPORT_SYMBOL_GPL(zap_vma_ptes);\n \n@@ -3003,7 +3002,7 @@ static int remap_pfn_range_notrack(struct vm_area_struct *vma, unsigned long add\n \t * maintain page reference counts, and callers may free\n \t * pages due to the error. So zap it early.\n \t */\n-\tzap_page_range_single(vma, addr, size, NULL);\n+\tzap_page_range_single(vma, addr, size);\n \treturn error;\n }\n \n@@ -4226,7 +4225,12 @@ static void unmap_mapping_range_vma(struct vm_area_struct *vma,\n \t\tunsigned long start_addr, unsigned long end_addr,\n \t\tstruct zap_details *details)\n {\n-\tzap_page_range_single(vma, start_addr, end_addr - start_addr, details);\n+\tstruct mmu_gather tlb;\n+\n+\ttlb_gather_mmu(&tlb, vma->vm_mm);\n+\tzap_page_range_single_batched(&tlb, vma, start_addr,\n+\t\t\t\t end_addr - start_addr, details);\n+\ttlb_finish_mmu(&tlb);\n }\n \n static inline void unmap_mapping_range_tree(struct rb_root_cached *root,\ndiff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c\nindex f84d9a45cc9d..befcde27dee7 100644\n--- a/net/ipv4/tcp.c\n+++ b/net/ipv4/tcp.c\n@@ -2104,7 +2104,7 @@ static int tcp_zerocopy_vm_insert_batch_error(struct vm_area_struct *vma,\n \t\tmaybe_zap_len = total_bytes_to_map - /* All bytes to map */\n \t\t\t\t*length + /* Mapped or pending */\n \t\t\t\t(pages_remaining * PAGE_SIZE); /* Failed map. */\n-\t\tzap_page_range_single(vma, *address, maybe_zap_len, NULL);\n+\t\tzap_page_range_single(vma, *address, maybe_zap_len);\n \t\terr = 0;\n \t}\n \n@@ -2269,8 +2269,7 @@ static int tcp_zerocopy_receive(struct sock *sk,\n \ttotal_bytes_to_map = avail_len & ~(PAGE_SIZE - 1);\n \tif (total_bytes_to_map) {\n \t\tif (!(zc->flags & TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT))\n-\t\t\tzap_page_range_single(vma, address, total_bytes_to_map,\n-\t\t\t\t\t NULL);\n+\t\t\tzap_page_range_single(vma, address, total_bytes_to_map);\n \t\tzc->length = total_bytes_to_map;\n \t\tzc->recv_skip_hint = 0;\n \t} else {\ndiff --git a/rust/kernel/mm/virt.rs b/rust/kernel/mm/virt.rs\nindex da21d65ccd20..b8e59e4420f3 100644\n--- a/rust/kernel/mm/virt.rs\n+++ b/rust/kernel/mm/virt.rs\n@@ -124,7 +124,7 @@ pub fn zap_page_range_single(&self, address: usize, size: usize) {\n // sufficient for this method call. This method has no requirements on the vma flags. The\n // address range is checked to be within the vma.\n unsafe {\n- bindings::zap_page_range_single(self.as_ptr(), address, size, core::ptr::null_mut())\n+ bindings::zap_page_range_single(self.as_ptr(), address, size)\n };\n }\n \n", "prefixes": [ "v1", "02/16" ] }