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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 v2.1 04/17] Docs/mm/damon/design: document pgidle_unset probe filter type Date: Mon, 27 Jul 2026 07:38:13 -0700 Message-ID: <20260727143829.86236-5-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260727143829.86236-1-sj@kernel.org> References: <20260727143829.86236-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: C692C18000F X-Stat-Signature: 5zqy6bef5tudwa6idgigpbqy73it99r4 X-HE-Tag: 1785163114-474027 X-HE-Meta: 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 2VlIkTTz E+UDISpvJYeBBHSf7gTzft8/I3Woj54oJiuH/nbXQ2l2rvujMHc4jqxKb/Rq1i/Sn23yNeKPdMzMLoiXaRLF/1IW8PlP036fRfB+tyH/pHozhZTRyHvl1he6qbyV4mGQ2YQRg6iARuc6CHzqPEsMLASWIHZ3BcipE1Ko4L3w04373VHtMkVlfqan0ukFBzp1wInvME10aav08wUwj3REXCrHlqz9hxxReWFNdtbzTaGyP1MucezbqBEeE4Xe6ezMhR4S5S6O26ERMb/igoYik/VC5xQ== 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