Commit 3e665b7e authored by SeongJae Park's avatar SeongJae Park Committed by Zhong Jinghua
Browse files

mm/damon/Kconfig: add DAMON debugfs interface deprecation notice 

mainline inclusion
from mainline-v6.3-rc1
commit 61e88a2f
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6MRUG

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=61e88a2f66580d7488bbf7454423c81886d2e8cd

--------------------------------

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 Kconfig.

[1] https://git.kernel.org/pub/scm/docs/kernel/website.git/commit/?id=332e9121320bc7461b2d3a79665caf153e51732c

Link: https://lkml.kernel.org/r/20230209192009.7885-3-sj@kernel.org


Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarZe Zuo <zuoze1@huawei.com>
parent d1e63945

mm/damon/Kconfig

+4 −3
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ config DAMON_SYSFS 
	  the interface for arbitrary data access monitoring.



config DAMON_DBGFS

	bool "DAMON debugfs interface"

	bool "DAMON debugfs interface (DEPRECATED!)"

	depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS

	help

	  This builds the debugfs interface for DAMON.  The user space admins
@@ -68,8 +68,9 @@ config DAMON_DBGFS 


	  If unsure, say N.



	  This will be removed after >5.15.y LTS kernel is released, so users

	  should move to the sysfs interface (DAMON_SYSFS).

	  This is deprecated, so users should move to the sysfs interface

	  (DAMON_SYSFS).  If you depend on this and cannot move, please report

	  your usecase to damon@lists.linux.dev and linux-mm@kvack.org.



config DAMON_DBGFS_KUNIT_TEST

	bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS