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| author | SeongJae Park <sj@kernel.org> | 2022-12-06 02:08:30 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-01-19 04:12:44 +0300 |
| commit | 497b099d9a166f819e667f4bf258e7a00ea2e78a (patch) | |
| tree | 5c19bcb2f0836728f481e3014db5719bb22c2244 | |
| parent | 9b7f9322a5300505fffba492b45621c897c0e0df (diff) | |
| download | linux-497b099d9a166f819e667f4bf258e7a00ea2e78a.tar.xz | |
Docs/ABI/damon: document scheme filters files
Document newly added DAMON sysfs interface files for DAMOS filtering on
the DAMON ABI document.
Link: https://lkml.kernel.org/r/20221205230830.144349-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-kernel-mm-damon | 29 |
1 files changed, 29 insertions, 0 deletions
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@kernel.org> 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@kernel.org> +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@kernel.org> +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@kernel.org> +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@kernel.org> +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@kernel.org> |