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b=gCUbDUZjCtGJH+c6yWWdXTaAuGUZiYJkbZDXlpJ3Jm1fF4sb99EU9A4qrB/wBCB+Z a9oVpj9j5mC9MEn3QMOfphCCyMOqFrK5o+Hos1yumguo1UyA/BsWOkzpEO1bajm9cG zHso1QXWI186VFn8kE2pK2SuilB6E0sbnNmMRmwQxGOCMeNQEcUxVOWin6f0CTCl0R du7sHe7o7grMmm3yy62cobSOsxIWQfWX1p+utgYkkSND0rLv5cN57Qlyy4Josl5UeF /m1J8dxyN9S7CnNc2UyqH4RQ5vfUK/4lg2FWD+26XgrAUkx8IAxXzUo7HMecR9Ieb3 IlRezqgx1lWOA== From: SJ Park To: Donggeun Yoo Cc: SJ Park , akpm@linux-foundation.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 0/2] mm/damon/core: fix the size charged for a filter-trimmed region Date: Wed, 16 Sep 2026 18:28:17 -0700 Message-ID: <20260917012818.101391-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260917003553.2465523-1-donggeunyoo.kernel@gmail.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 5C98080003 X-Stat-Signature: 1uabnksnpi63yczatmx3rnc3aoofq9er X-Rspam-User: X-HE-Tag: 1789608506-901842 X-HE-Meta: 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 Q5tY2CnS 3JS91dn3hBdd2CgRaM3mv+SyfJpuufFx+K70IC/SDLaz9buloH9Ju7Dr1F0wH0V++UGn05FoaPTID+z1mAiK87XKflyA8xOIrZVV3byyA/Yg2XVzU2JFA8GRGvTam1lhjYDBPUvgXfkudtL5a/HWjKFRwCVNPRGdrbQmiaJoyRREYbp7p9yxzXc4MXI6/byMg/N7romKlyouOdALVq733YLsGg54cI5AS7tId9pwIYq49HITOWcZyEA9GWw9azsNjuR/kcJiwJ9aOF9ToRzzH84PW/miKFCWFG+xufZeflSKhxLhZtxtCbHWuXtRtTzDV2+sX6+dJ3hji7R45UureC63zwV7Ct4Ce0Pp/ Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello Donggeun, On Thu, 17 Sep 2026 09:35:51 +0900 Donggeun Yoo wrote: > An address range DAMOS filter that partially overlaps a monitoring region > splits it, so the scheme action reaches only one side of the boundary. > damos_apply_scheme() reads the region size before that split and never > re-reads it, so the quota charge and schemes//stats/sz_tried account for > the whole original region. > > Patch 1 re-reads the size after the core filters have run. Patch 2 adds > KUnit coverage for what the function charges and reports, for the trimmed > cases and for the cases that must not change. This series is applied to damon/next [1] tree. If this patch is not added to mm.git in short term (~1 week?), I will ask mm.git maintainer (Andrew Morton) to pick this. So, no action from your side is needed for now. If it seems I also forgot doing that or you cannot wait for my action, please feel free to ping me or directly ask that to Andrew. [1] https://origin.kernel.org/doc/html/latest/mm/damon/maintainer-profile.html#scm-trees Thanks, SJ [...]