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b=A3KTXS+Q/AEBoZ4uNfNUsQ0k+ej9XaXq69rCQFPw1ygtZW43gGcEuMye/wWE45zdM YMDY+mI9YFi+aDyqPtX65ur9P0c1QLANOG7IYdZsxcU5O4TksyH0HhEMICOGFtEsDu NbqOY4ZUq2HB4h+bfnVdA26kN4pBS4xYv5DFT9gazLd16W7FbrqAVkcww8+KXOp2eb jkLATaJa7wZKYa7Y3RhuUVAq34sssOBxg9XNnYenpE4Kl2gYVnA293XdgSXNGs1/Y7 aOE88cBDoObjjaZ5K6sWE4I1ly4Ftfz3HR+tVZRTJvCijUZ6tVmR9iJuQl7V3aRIho Az/hnaRVwWgCA== Date: Mon, 18 May 2026 09:51:53 -1000 From: Tejun Heo To: Peter Zijlstra Cc: David Vernet , Andrea Righi , Changwoo Min , Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Martin KaFai Lau , Kumar Kartikeya Dwivedi , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , Andrew Morton , David Hildenbrand , Mike Rapoport , Emil Tsalapatis , sched-ext@lists.linux.dev, bpf@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 7/8] sched_ext: Sub-allocator over kernel-claimed BPF arena pages Message-ID: References: <20260517211232.1670594-1-tj@kernel.org> <20260517211232.1670594-8-tj@kernel.org> <20260518072042.GP3102624@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260518072042.GP3102624@noisy.programming.kicks-ass.net> X-Stat-Signature: qrggtf9qo695oj6amkoek7mmfwbpyof4 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: E8CBA1C000A X-Rspam-User: X-HE-Tag: 1779133915-303715 X-HE-Meta: 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 UcfiG4Ex QsEHwj/9+KPQkDyZ/Ov3WuwHThQPL/xMkvXQ1avnA1BUCfs3v2RVG044It32IQbXSJ2boXZzc/wS7FlIwfp5mgFE4O3RZIBF9vxCMsZ7hjYWKytimxz4XCKizyKXn25dwA9K3QTGOeEg6UeGfTzeyG3vWFC/9Ne8gYNwq4QxksTur0KntAe3jFBshUNhsU+tF/F+5QT6p4J4M0e6gXO2+4Dwy0QhgxgsHLlcYyzSE7SnexlpqdodXS2dEl1IXbciotcToheovYCz9g5s= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, On Mon, May 18, 2026 at 09:20:42AM +0200, Peter Zijlstra wrote: ... > Should this really be part of scx rather than be part of the bpf-arena > thing proper? It's just a layer on top of arena. If bpf folks are okay with it, I don't see why it can't be a common utility thing on the bpf side. Thanks. -- tejun