The quilt patch titled Subject: Docs/admin-guide/mm/damon/usage: add DAMON debugfs interface deprecation notice has been removed from the -mm tree. Its filename was docs-admin-guide-mm-damon-usage-add-damon-debugfs-interface-deprecation-notice.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: Docs/admin-guide/mm/damon/usage: add DAMON debugfs interface deprecation notice Date: Thu, 9 Feb 2023 19:20:07 +0000 Patch series "mm/damon: deprecate DAMON debugfs interface". DAMON debugfs interface has announced to be deprecated after >v5.15 LTS kernel is released. And v6.1.y has been announced to be an LTS[1]. Though the announcement was there for a while, some people might not have noticed that so far. Also, some users could depend on it and have problems at movng to the alternative (DAMON sysfs interface). For such cases, keep the code and documents with warning messages and contacts to ask helps for the deprecation. [1] https://git.kernel.org/pub/scm/docs/kernel/website.git/commit/?id=332e9121320bc7461b2d3a79665caf153e51732c This patch (of 3): DAMON debugfs interface has announced to be deprecated after >v5.15 LTS kernel is released. And, v6.1.y has announced to be an LTS[1]. Though the announcement was there for a while, some people might not noticed that so far. Also, some users could depend on it and have problems at movng to the alternative (DAMON sysfs interface). For such cases, note DAMON debugfs interface as deprecated, and contacts to ask helps on the document. [1] https://git.kernel.org/pub/scm/docs/kernel/website.git/commit/?id=332e9121320bc7461b2d3a79665caf153e51732c Link: https://lkml.kernel.org/r/20230209192009.7885-1-sj@xxxxxxxxxx Link: https://lkml.kernel.org/r/20230209192009.7885-2-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-add-damon-debugfs-interface-deprecation-notice +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -25,10 +25,12 @@ DAMON provides below interfaces for diff interface provides only simple :ref:`statistics <damos_stats>` for the monitoring results. For detailed monitoring results, DAMON provides a :ref:`tracepoint <tracepoint>`. -- *debugfs interface.* +- *debugfs interface. (DEPRECATED!)* :ref:`This <debugfs_interface>` is almost identical to :ref:`sysfs interface - <sysfs_interface>`. This will be removed after next LTS kernel is released, - so users should move to the :ref:`sysfs interface <sysfs_interface>`. + <sysfs_interface>`. This is deprecated, so users should move to the + :ref:`sysfs interface <sysfs_interface>`. If you depend on this and cannot + move, please report your usecase to damon@xxxxxxxxxxxxxxx and + linux-mm@xxxxxxxxx. - *Kernel Space Programming Interface.* :doc:`This </mm/damon/api>` is for kernel space programmers. Using this, users can utilize every feature of DAMON most flexibly and efficiently by @@ -487,13 +489,17 @@ the files as above. Above is only for a .. _debugfs_interface: -debugfs Interface -================= +debugfs Interface (DEPRECATED!) +=============================== .. note:: - DAMON debugfs interface will be removed after next LTS kernel is released, so - users should move to the :ref:`sysfs interface <sysfs_interface>`. + THIS IS DEPRECATED! + + DAMON debugfs interface is deprecated, so users should move to the + :ref:`sysfs interface <sysfs_interface>`. If you depend on this and cannot + move, please report your usecase to damon@xxxxxxxxxxxxxxx and + linux-mm@xxxxxxxxx. DAMON exports eight files, ``attrs``, ``target_ids``, ``init_regions``, ``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts`` and _ Patches currently in -mm which might be from sj@xxxxxxxxxx are