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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 05/16] mm/oom_kill: use MMU_NOTIFY_CLEAR in __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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 6DC3F1C0012 X-Rspamd-Server: rspam07 X-Stat-Signature: n6khu3413c9ew1a55m5zijxbdqcg6dke X-Rspam-User: X-HE-Tag: 1772223032-192938 X-HE-Meta: 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 MoWQshPR D4fH0yGycE9mA1JmG6EPKYZ8SwovdpQzybvRuc3XF7PhEGlSmfogVnkrz1CWgFmhOLo4eThcgc9wHzgT1Bj33bq8I6vXste6Tzb8Ybw8kF2k0s/wqCI8NYTFerPxFIbHMomy3KYYi3BkC41OAZqoPiLcwSkOe9iuUc3vwJ5b+ah7Qeen6pRmCtJ7DBfOm1sqO84M06sLOGcZAobTgzDl5j8qm9CAQ/JRnjkqleZU6kbCoIxz1R+/S/DyFY9LYtC4CUl4qPTKvgxlzGFKxZsEjF8ob6pqyZ/oOeADBH3jMragDmGRW7QnFSvE5EkO501uvYioS Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: In commit 7269f999934b ("mm/mmu_notifier: use correct mmu_notifier events for each invalidation") we converted all MMU_NOTIFY_UNMAP to MMU_NOTIFY_CLEAR, except the ones that actually perform munmap() or mremap() as documented. __oom_reap_task_mm() behaves much more like MADV_DONTNEED. So use MMU_NOTIFY_CLEAR as well. This is a preparation for further changes. Signed-off-by: David Hildenbrand (Arm) --- mm/oom_kill.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 5c6c95c169ee..0ba56fcd10d5 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -551,7 +551,7 @@ static bool __oom_reap_task_mm(struct mm_struct *mm) struct mmu_notifier_range range; struct mmu_gather tlb; - mmu_notifier_range_init(&range, MMU_NOTIFY_UNMAP, 0, + mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, mm, vma->vm_start, vma->vm_end); tlb_gather_mmu(&tlb, mm); -- 2.43.0