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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 v2.2 04/17] Docs/mm/damon/design: document pgidle_unset probe filter type Date: Mon, 27 Jul 2026 21:12:25 -0700 Message-ID: <20260728041242.187380-5-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260728041242.187380-1-sj@kernel.org> References: <20260728041242.187380-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 9F74B40006 X-Rspam-User: X-Stat-Signature: bbimuei73uziqc8djj9gp5h48ypr59j5 X-HE-Tag: 1785211974-490741 X-HE-Meta: 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 c364eOhL yOvGVdIJf47DGAF2fICeenjN2NbTCjKU3X0XBmp52roLEwMHuAYYEirfMBNYLFfnMZSQVwMYS/YFPDrmnAkcum4IW1yLkF6yEmWczQ7MUVSGDBVqcSws7q+yyDBraw9lApj05lcGlJ92sNXUluJHgkzd0qHAYmLd3V4YaQTBeLrYqZaJvlUdDMeIl5RkVlNeoQVztnKPB3JAl2DMs1bHj0nhtYMNgnKeASy5dj9uAk/O9r4o4ZSyjFPuxExjzslPGBVn6CxWwZSb+cKP1u/f6ebvZt+DW7k6P71v81k0rVGh/jg7xqvYCF0Rb7GD8+UHOyiI04tskZhwBdIlkcbM7IAEYVRU07Te/YOxmU2uQ7yNBfwOOQ88jRIZOlQ== 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 a8c163475ef2b..c4830bd09498d 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