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Howlett" , David Hildenbrand , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 02/11] Docs/ABI/damon: document probe files Date: Tue, 30 Jun 2026 07:17:16 -0700 Message-ID: <20260630141726.92246-3-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260630141726.92246-1-sj@kernel.org> References: <20260630141726.92246-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: eqnqin8mso18yps673hcppefxsu1za66 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: AD6284000F X-HE-Tag: 1782829059-687414 X-HE-Meta: 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 qvEIg1qK a3z5kHM83AqyjS3knhvvBpNQoEXGp2O5lWu7HYBwn26BIcVZM/e8hOq/yIy1zvKPrQvS/w24GCX9hnlbgpmGzaiA3xcvqcXAlUY/cndoigoa7w4xMkpuhEf3UI66DtpD1z9pOb10TqVOiTVAdWRp2YD/iw6WVzIGMs80N1hoYcCLb6mdRBxZWyp6F2evf8FeX3LIzQGXg3/hWbz89clXRVWeZ/S0Th22nyzNG3BZLADG3JdAsqnbgdItXsah+YCKT/f7Y79qpSAEiNM4= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMON ABI document is not updated for the DAMON probe sysfs files. Update. Signed-off-by: SJ Park --- .../ABI/testing/sysfs-kernel-mm-damon | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon index 4fdec63a47d4a..dd6b5bd76e119 100644 --- a/Documentation/ABI/testing/sysfs-kernel-mm-damon +++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon @@ -157,6 +157,46 @@ Description: Writing a value to this file sets the maximum number of monitoring regions of the DAMON context as the value. Reading this file returns the value. +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/nr_probes +Date: May 2026 +Contact: SJ Park +Description: Writing a number 'N' to this file creates the number of + directories for each DAMON probe named '0' to 'N-1' under the + probes/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/

/filters/nr_filters +Date: May 2026 +Contact: SJ Park +Description: Writing a number 'N' to this file creates the number of + directories for each DAMON probe filter named '0' to 'N-1' + under the filters/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/

/filters//type +Date: May 2026 +Contact: SJ Park +Description: Writing to and reading from this file sets and gets the type of + the memory of the interest. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/

/filters//path +Date: May 2026 +Contact: SJ Park +Description: If 'memcg' is written to the 'type' file, writing to and + reading from this file sets and gets the path to the memory + cgroup of the interest. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/

/filters//matching +Date: May 2026 +Contact: SJ Park +Description: Writing 'Y' or 'N' to this file sets whether the filter is for + the memory of the 'type', or all except the 'type'. + +What: /sys/kernel/mm/damon/admin/kdamonds//contexts//monitoring_attrs/probes/

/filters//allow +Date: May 2026 +Contact: SJ Park +Description: Writing 'Y' or 'N' to this file sets whether to allow or reject + hitting the probe for the memory that satisfies the 'type' and + the 'matching' of the directory. + What: /sys/kernel/mm/damon/admin/kdamonds//contexts//targets/nr_targets Date: Mar 2022 Contact: SJ Park -- 2.47.3