The patch titled Subject: Docs/admin-guide/mm/damon/usage: use a list for 'state' sysfs file input commands has been added to the -mm mm-unstable branch. Its filename is docs-admin-guide-mm-damon-usage-use-a-list-for-state-sysfs-file-input-commands.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/docs-admin-guide-mm-damon-usage-use-a-list-for-state-sysfs-file-input-commands.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: Docs/admin-guide/mm/damon/usage: use a list for 'state' sysfs file input commands Date: Wed, 13 Dec 2023 19:03:38 +0000 There are eight command inputs for 'state' DAMON sysfs file, and those are verbosely explained in multiple paragraphs. It is not easy to find explanation of specific command, and getting whole picture of supported commands. Replace the paragraphs with a list. Link: https://lkml.kernel.org/r/20231213190338.54146-7-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/mm/damon/usage.rst | 43 ++++++++--------- 1 file changed, 21 insertions(+), 22 deletions(-) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-use-a-list-for-state-sysfs-file-input-commands +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -130,30 +130,29 @@ In each kdamond directory, two files (`` (``contexts``) exist. Reading ``state`` returns ``on`` if the kdamond is currently running, or -``off`` if it is not running. Writing ``on`` or ``off`` makes the kdamond be -in the state. +``off`` if it is not running. -Writing ``commit`` to the ``state`` file makes kdamond reads the -user inputs in the sysfs files except ``state`` file again. Writing -``commit_schemes_quota_goals`` to the ``state`` file makes kdamond reads the -DAMON-based operation schemes' :ref:`quota goals <sysfs_schemes_quota_goals>` -of the kdamond. +Users can write below commands for the kdamond to the ``state`` file. -Writing ``update_schemes_stats`` to ``state`` file updates the -contents of stats files for each DAMON-based operation scheme of the kdamond. -For details of the stats, please refer to :ref:`stats section -<sysfs_schemes_stats>`. - -Writing ``update_schemes_tried_regions`` to ``state`` file updates the -DAMON-based operation scheme action tried regions directory for each -DAMON-based operation scheme of the kdamond. Writing -``update_schemes_tried_bytes`` to ``state`` file updates only -``.../tried_regions/total_bytes`` files. Writing -``clear_schemes_tried_regions`` to ``state`` file clears the DAMON-based -operating scheme action tried regions directory for each DAMON-based operation -scheme of the kdamond. For details of the DAMON-based operation scheme action -tried regions directory, please refer to :ref:`tried_regions section -<sysfs_schemes_tried_regions>`. +- ``on``: Start running. +- ``off``: Stop running. +- ``commit``: Read the user inputs in the sysfs files except ``state`` file + again. +- ``commit_schemes_quota_goals``: Read the DAMON-based operation schemes' + :ref:`quota goals <sysfs_schemes_quota_goals>`. +- ``update_schemes_stats``: Update the contents of stats files for each + DAMON-based operation scheme of the kdamond. For details of the stats, + please refer to :ref:`stats section <sysfs_schemes_stats>`. +- ``update_schemes_tried_regions``: Update the DAMON-based operation scheme + action tried regions directory for each DAMON-based operation scheme of the + kdamond. For details of the DAMON-based operation scheme action tried + regions directory, please refer to + :ref:`tried_regions section <sysfs_schemes_tried_regions>`. +- ``update_schemes_tried_bytes``: Update only ``.../tried_regions/total_bytes`` + files. +- ``clear_schemes_tried_regions``: Clear the DAMON-based operating scheme + action tried regions directory for each DAMON-based operation scheme of the + kdamond. If the state is ``on``, reading ``pid`` shows the pid of the kdamond thread. _ Patches currently in -mm which might be from sj@xxxxxxxxxx are selftests-damon-implement-a-python-module-for-test-purpose-damon-sysfs-controls.patch selftests-damon-_damon_sysfs-implement-kdamonds-start-function.patch selftests-damon-_damon_sysfs-implement-updat_schemes_tried_bytes-command.patch selftests-damon-add-a-test-for-update_schemes_tried_regions-sysfs-command.patch selftests-damon-add-a-test-for-update_schemes_tried_regions-hang-bug.patch mm-damon-update-email-of-seongjae.patch mm-damon-core-test-test-max_nr_accesses-overflow-caused-divide-by-zero.patch docs-mm-damon-design-place-execution-model-and-data-structures-at-the-beginning.patch docs-admin-guide-mm-damon-usage-update-context-directory-section-label.patch docs-admin-guide-mm-damon-usage-add-links-to-sysfs-files-hierarchy.patch docs-admin-guide-mm-damon-usage-use-a-list-for-state-sysfs-file-input-commands.patch