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GET /api/patches/2202526/?format=api
{ "id": 2202526, "url": "http://patchwork.ozlabs.org/api/patches/2202526/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260227200848.114019-6-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": "<20260227200848.114019-6-david@kernel.org>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260227200848.114019-6-david@kernel.org/", "date": "2026-02-27T20:08:36", "name": "[v1,05/16] mm/oom_kill: use MMU_NOTIFY_CLEAR in __oom_reap_task_mm()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "28f1f910d5d677afc1867efc873389237d6380c4", "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/20260227200848.114019-6-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/2202526/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2202526/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-17413-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=DBRHRg84;\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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Sat, 28 Feb 2026 07:10:34 +1100 (AEDT)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4fMzwB4m2Gz3bll;\n\tSat, 28 Feb 2026 07:10:34 +1100 (AEDT)", "from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4fMzw9422Zz3bjb\n\tfor <linuxppc-dev@lists.ozlabs.org>; Sat, 28 Feb 2026 07:10:33 +1100 (AEDT)", "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n\tby sea.source.kernel.org (Postfix) with ESMTP id 4A4DA432F8;\n\tFri, 27 Feb 2026 20:10:31 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 7E5E5C2BCB0;\n\tFri, 27 Feb 2026 20:10:15 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772223034;\n\tcv=none;\n b=ewy4Wh4AnyIZaUnPa1UB6JvPvoLguT0FexiFR52iW81apQmL8xA6fSHdKGFmawDcSGu0tbeFrJLeDV40e0SSlSBDPGwwDO1LwZwfBlPRnrcl/2sgTC2etZzNqdQl+4vng2Ejt4Qgu4PR2oEjqYIFtdREGncATkJ+P6wqjE+qi8HFl84deTQvgGZr5LktlarzDeIGkKFG8kFQSfnkfUAop8YrEP+i1QhmWZ1tWF5IqncxGAXRhKKKZCXVFEafybNNMeSr3cLJDrFH34MKj4WPvJVi+sf3W9420U3PLKY+ifulq3/GsxlomXKi7rpCL/Ue/Hqw1MpnN4rG587+FrBp4w==", "ARC-Message-Signature": "i=1; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1772223031;\n\tbh=GDIsuZYm2zKYxLFzdJGIwkOaoBFqEdMRlEhHeQ3/4/c=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=DBRHRg84mUFFa5j1Ap08A/NiDuF3TUvfcRS7C3+9hv775NpD/8NroucXGTumCDp/q\n\t yrfW9Y3j7L6NHLbxDVoLPnwidDlbqQx43JL5ql1ycR4JGKaqhcycHzZzwNzJlcvc02\n\t dllhdtIOUZfDuMDJj+LoTseNq6O5uagn4G64tCcqE5fAIbrOu0ko0XkUr7ircdpbQh\n\t bXRyXmVj6xEUhwSFjMMxmlipUHZ264tacuMAwtSvAd5grFuLAF6s73NejFFuX4hEaz\n\t JPFck19AXo77usRat6V50+er5SScDpOmDuKTSvIT6gz+N5E8JF7nu9dERR/ctItvMT\n\t m5GfMgiKzWHMQ==", "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 05/16] mm/oom_kill: use MMU_NOTIFY_CLEAR in\n __oom_reap_task_mm()", "Date": "Fri, 27 Feb 2026 21:08:36 +0100", "Message-ID": "<20260227200848.114019-6-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": "In commit 7269f999934b (\"mm/mmu_notifier: use correct mmu_notifier events\nfor each invalidation\") we converted all MMU_NOTIFY_UNMAP to\nMMU_NOTIFY_CLEAR, except the ones that actually perform munmap() or\nmremap() as documented.\n\n__oom_reap_task_mm() behaves much more like MADV_DONTNEED. So use\nMMU_NOTIFY_CLEAR as well.\n\nThis is a preparation for further changes.\n\nSigned-off-by: David Hildenbrand (Arm) <david@kernel.org>\n---\n mm/oom_kill.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/mm/oom_kill.c b/mm/oom_kill.c\nindex 5c6c95c169ee..0ba56fcd10d5 100644\n--- a/mm/oom_kill.c\n+++ b/mm/oom_kill.c\n@@ -551,7 +551,7 @@ static bool __oom_reap_task_mm(struct mm_struct *mm)\n \t\t\tstruct mmu_notifier_range range;\n \t\t\tstruct mmu_gather tlb;\n \n-\t\t\tmmu_notifier_range_init(&range, MMU_NOTIFY_UNMAP, 0,\n+\t\t\tmmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0,\n \t\t\t\t\t\tmm, vma->vm_start,\n \t\t\t\t\t\tvma->vm_end);\n \t\t\ttlb_gather_mmu(&tlb, mm);\n", "prefixes": [ "v1", "05/16" ] }