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Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Randy Dunlap , 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: [PATCH 04/17] Docs/mm/damon/design: document pgidle_unset probe filter type Date: Mon, 31 Aug 2026 21:34:00 -0700 Message-ID: <20260901043417.2165-5-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260901043417.2165-1-sj@kernel.org> References: <20260901043417.2165-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: 758u4edjekunehzzeh4knm6kfi4kck3z X-Rspamd-Queue-Id: E0D57140007 X-Rspamd-Server: rspam06 X-HE-Tag: 1788237267-732556 X-HE-Meta: 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 OsM3Y8oO YAiHTek6Vey0YNkclqNkJgyIw8uttgbaCnS6S1ZhDvg591HNBxnJ4nd/wpCHW+om0CYBNdOGoU78mpzbdB5pIw6ddmQ+GP+Zy6LGaP2V7KGgBpC+Rh/PHksBvyjj+TeUlbp88BVjSSVK/GjNtTg/vNeXfigzmw5Y45oO98+x6F7BQifudF37Nkdg53tcb63JU2ze4hkrlw7S+QH79r74Y9Eys3yQv4gN2FT3oF7vbdX5Qv0utaF2xEVxfAvxLSIaCYPv4RwjIBscxenNSX2Rt8oZuFTbkPekqgoVb Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Update DAMON design document for the newly added pgidle_unset probe filter type. Also use a list for the types, as it becomes not very easy to read the whole types in a simple sentence. Signed-off-by: SJ Park --- Documentation/mm/damon/design.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst index 63cbb7b536da2..947d91ae24a39 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -293,8 +293,12 @@ registration is made by specifying a probe per attribute. Each of the probe specifies a rule to determine if a given memory region has the related attribute. The rule is constructed with multiple filters. The filters work same to :ref:`DAMOS filters ` except the supported -filter types. Currently only ``anon`` and ``memcg`` filter types are supported -for data attributes monitoring. +filter types. Currently below filter types are supported. + +- ``anon``: Same to that for DAMOS filters. +- ``memcg``: Same to that for DAMOS filters. +- ``pgidle_unset``: Matches if the page for the memory is marked as not + access-idle. If such probes are registered, DAMON executes the probes for each region's sampling memory when it does the access :ref:`sampling -- 2.47.3