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Howlett" , Andrew Morton , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 0/2] mm/damon/stat: add kdamond_pid parameter Date: Tue, 14 Apr 2026 16:59:09 -0700 Message-ID: <20260414235912.98174-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: m7mycobwaqmjkgixqbzzq4q1jyym7pru X-Rspamd-Queue-Id: 348E440010 X-Rspamd-Server: rspam09 X-HE-Tag: 1776211163-674199 X-HE-Meta: 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 24w9bw+W Nczsa8yG7jF1oAcds59jmvc0YQXQaQDHkKbyZWEC/1oxSmdpfGfIOMP4UfIdQ8u9P/TdO+OjkGV9SciaRXT2IRspysefIcLeQCsejPdE4VS0WGRpr5e1+AULVZyXaAd35VkPmRSV9eKI747FS4+crgT1Vdu1W+MP8bkGJsg9nhMM5b9+QDSkcBxZw16Twu8UADggYA3UGrmaTw+8fJJejHzHyMELX89DDk9Tn6D5csVKsdMg5dTsodAdkObgCFvNBFL9w8RkLblkBWVMoWUmqb1CEEyU36/pHbSJB8pTJB9jBE7oa1L67i5eDme6/a4CzL14k Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMON_STAT doesn't provide the pid of its kdamond, unlike DAMON_RECLAIM and DAMON_LRU_SORT. This makes user-space management of DAMON_STAT unnecessarily complicated. Provide the information via a new parameter, namely kdamond_pid, and document it. Changes from RFC - rfc: https://lore.kernel.org/20260414053742.90296-1-sj@kernel.org - Fix damon_kdamond_pid() failure handling. SeongJae Park (2): mm/damon/stat: add a parameter for reading kdamond pid Docs/admin-guide/mm/damon/stat: document kdamond_pid parameter Documentation/admin-guide/mm/damon/stat.rst | 7 +++++++ mm/damon/stat.c | 17 +++++++++++++++++ 2 files changed, 24 insertions(+) base-commit: 02784c37a710fa3c8c3e7be4f27a5cfa3356dc00 -- 2.47.3