The patch titled Subject: Docs/admin-guide/mm/damon/usage: update for monitor_on renaming has been added to the -mm mm-unstable branch. Its filename is docs-admin-guide-mm-damon-usage-update-for-monitor_on-renaming.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-update-for-monitor_on-renaming.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: update for monitor_on renaming Date: Mon, 29 Jan 2024 17:35:47 -0800 Update DAMON debugfs interface sections on the usage document to reflect the fact that 'monitor_on' file has renamed to 'monitor_on_DEPRECATED'. Link: https://lkml.kernel.org/r/20240130013549.89538-9-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: Alex Shi <alexs@xxxxxxxxxx> Cc: Hu Haowen <2023002089@xxxxxxxxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Cc: Yanteng Si <siyanteng@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/mm/damon/usage.rst | 29 ++++++++--------- 1 file changed, 15 insertions(+), 14 deletions(-) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-update-for-monitor_on-renaming +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -629,8 +629,9 @@ debugfs Interface (DEPRECATED!) linux-mm@xxxxxxxxx. DAMON exports nine files, ``DEPRECATED``, ``attrs``, ``target_ids``, -``init_regions``, ``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts`` -and ``rm_contexts`` under its debugfs directory, ``<debugfs>/damon/``. +``init_regions``, ``schemes``, ``monitor_on_DEPRECATED``, ``kdamond_pid``, +``mk_contexts`` and ``rm_contexts`` under its debugfs directory, +``<debugfs>/damon/``. ``DEPRECATED`` is a read-only file for the DAMON debugfs interface deprecation @@ -855,16 +856,16 @@ Turning On/Off Setting the files as described above doesn't incur effect unless you explicitly start the monitoring. You can start, stop, and check the current status of the -monitoring by writing to and reading from the ``monitor_on`` file. Writing -``on`` to the file starts the monitoring of the targets with the attributes. -Writing ``off`` to the file stops those. DAMON also stops if every target -process is terminated. Below example commands turn on, off, and check the -status of DAMON:: +monitoring by writing to and reading from the ``monitor_on_DEPRECATED`` file. +Writing ``on`` to the file starts the monitoring of the targets with the +attributes. Writing ``off`` to the file stops those. DAMON also stops if +every target process is terminated. Below example commands turn on, off, and +check the status of DAMON:: # cd <debugfs>/damon - # echo on > monitor_on - # echo off > monitor_on - # cat monitor_on + # echo on > monitor_on_DEPRECATED + # echo off > monitor_on_DEPRECATED + # cat monitor_on_DEPRECATED off Please note that you cannot write to the above-mentioned debugfs files while @@ -880,11 +881,11 @@ can get the pid of the thread by reading monitoring is turned off, reading the file returns ``none``. :: # cd <debugfs>/damon - # cat monitor_on + # cat monitor_on_DEPRECATED off # cat kdamond_pid none - # echo on > monitor_on + # echo on > monitor_on_DEPRECATED # cat kdamond_pid 18594 @@ -914,5 +915,5 @@ directory by putting the name of the con # ls foo # ls: cannot access 'foo': No such file or directory -Note that ``mk_contexts``, ``rm_contexts``, and ``monitor_on`` files are in the -root directory only. +Note that ``mk_contexts``, ``rm_contexts``, and ``monitor_on_DEPRECATED`` files +are in the root directory only. _ Patches currently in -mm which might be from sj@xxxxxxxxxx are docs-admin-guide-mm-damon-usage-use-sysfs-interface-for-tracepoints-example.patch mm-damon-rename-config_damon_dbgfs-to-damon_dbgfs_deprecated.patch mm-damon-dbgfs-implement-deprecation-notice-file.patch mm-damon-dbgfs-make-debugfs-interface-deprecation-message-a-macro.patch docs-admin-guide-mm-damon-usage-document-deprecated-file-of-damon-debugfs-interface.patch selftets-damon-prepare-for-monitor_on-file-renaming.patch mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated.patch docs-admin-guide-mm-damon-usage-update-for-monitor_on-renaming.patch docs-translations-damon-usage-update-for-monitor_on-renaming.patch