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a=openpgp-sha256; l=897; i=aliceryhl@google.com; h=from:subject:message-id; bh=VdGSNwvOHS4tbe2yVTH2LkOvCQHy/DauMn+6yQ5pPyE=; b=owEBbQKS/ZANAwAKAQRYvu5YxjlGAcsmYgBq0ibtYNvqiedt02F19Xor2K0bMRzbl1S9CHsPm jXYYOrb/fuJAjMEAAEKAB0WIQSDkqKUTWQHCvFIvbIEWL7uWMY5RgUCatIm7QAKCRAEWL7uWMY5 RjboEACMnNKyBE64K0GQYb2U/3ziHnVZKrSyF1FRxjJgNj9kH7uTZQ8ppQqBLuwdtyzRUe4TgJb WyCVeLSpXbpIZCLnnPjB+wxyUFZRReR9sB+q+FzXkMWJjvZOXh9MKKuw1Akc7ilP3YdYxCynYFy Qnch1TKxg8vw1+GxPE8q299F+S8EEEc7Yu8Qua7u1C7qzIF1AgOW7VeIl7E7P+tYiChWkFwwmMC /DoenxAlslhnK7HJnHDga/SV7bYToQDjsQ2JuBRNQQvo9P1QWSWi7YVlga6uVqS1ZjIcDWCaJss 6AMv/CTO3zLd9W4gwckIc28DhalM9zEECBodjRbAEAxYxZ/oqLcv94qeQ2Din3jYiubHpz+dDem 2WgrO/KrUfiCdhz/YwLzA4ls1WyvxX3fZqebb+/rbHQpthzSAECFtFbplXu91dgVlIKxaIp2U0C HdfjvhyM+PP8X+J9043uO5n3eZZQxy6xp4XzpSYEmp+V8AhSd4pK5CH3tmomiqYOLQLAfjxNu4R mkqSO7aUgvvXYDGIcoUXq5zL/DlWdJGdJqZyMiyqAhbE6I+xV9v8l8AcjbX4e4dLJaV/0CyaEOU 5eW86eEKY59W4YFIxyl+xyWK1smF5Fkk7mwciIw4gL3xiCg+kWh7VOy5M5RVxpFeGHGAOWVQ/zt yITc7uqoXonPx/Q== X-Mailer: b4 0.14.3 Message-ID: <20261016-binder-memcg-v1-0-d659b8ae088b@google.com> Subject: [PATCH 0/2] rust_binder: charge allocated pages to memcg From: Alice Ryhl To: Greg Kroah-Hartman , Carlos Llamas , Lorenzo Stoakes , "Liam R. Howlett" , "T.J. Mercier" Cc: Miguel Ojeda , Boqun Feng , Gary Guo , "=?utf-8?q?Bj=C3=B6rn_Roy_Baron?=" , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Daniel Almeida , Tamir Duberstein , Alexandre Courbot , "=?utf-8?q?Onur_=C3=96zkan?=" , linux-mm@kvack.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Alice Ryhl Content-Type: text/plain; charset="utf-8" Pages allocated by the Rust Binder driver and mapped into a process's VMA are currently not accounted to any memory cgroup. Add `Page::alloc_page_memcg()` (using `put_page()` on drop so folios are uncharged when freed), and use it to charge newly allocated binder pages to the target process's `mm_struct`. Signed-off-by: Alice Ryhl --- Alice Ryhl (2): rust: page: add Page::alloc_page_memcg() rust_binder: charge allocated pages to memcg drivers/android/binder/page_range.rs | 13 ++++++++-- rust/helpers/page.c | 17 ++++++++++++ rust/kernel/page.rs | 50 +++++++++++++++++++++++++++++++++++- 3 files changed, 77 insertions(+), 3 deletions(-) --- base-commit: 24a19b953e2a3d0ea5a8c4951a0ab8f32720c907 change-id: 20261014-binder-memcg-b42cb9f1098d Best regards, -- Alice Ryhl