Document newly added DAMON sysfs interface files for DAMOS filtering on the DAMON ABI document. Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> --- .../ABI/testing/sysfs-kernel-mm-damon | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon index 13397b853692..2744f21b5a6b 100644 --- a/Documentation/ABI/testing/sysfs-kernel-mm-damon +++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon @@ -258,6 +258,35 @@ Contact: SeongJae Park <sj@xxxxxxxxxx> Description: Writing to and reading from this file sets and gets the low watermark of the scheme in permil. +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/nr_filters +Date: Dec 2022 +Contact: SeongJae Park <sj@xxxxxxxxxx> +Description: Writing a number 'N' to this file creates the number of + directories for setting filters of the scheme named '0' to + 'N-1' under the filters/ directory. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/type +Date: Dec 2022 +Contact: SeongJae Park <sj@xxxxxxxxxx> +Description: Writing to and reading from this file sets and gets the type of + the memory of the interest. 'anon' for anonymous pages, or + 'memcg' for specific memory cgroup can be written and read. + +What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/memcg_path +Date: Dec 2022 +Contact: SeongJae Park <sj@xxxxxxxxxx> +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/<K>/contexts/<C>/schemes/<S>/filters/<F>/matching +Date: Dec 2022 +Contact: SeongJae Park <sj@xxxxxxxxxx> +Description: Writing 'Y' or 'N' to this file sets whether to filter out + pages that do or do not match to the 'type' and 'memcg_path', + respectively. Filter out means the action of the scheme will + not be applied to. + What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried Date: Mar 2022 Contact: SeongJae Park <sj@xxxxxxxxxx> -- 2.25.1
