The patch titled
Subject: mm/damon/Kconfig: add DAMON debugfs interface deprecation notice
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-kconfig-add-damon-debugfs-interface-deprecation-notice.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-kconfig-add-damon-debugfs-interface-deprecation-notice.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/Kconfig: add DAMON debugfs interface deprecation notice
Date: Thu, 9 Feb 2023 19:20:08 +0000
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@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/Kconfig | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/mm/damon/Kconfig~mm-damon-kconfig-add-damon-debugfs-interface-deprecation-notice
+++ a/mm/damon/Kconfig
@@ -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@xxxxxxxxxxxxxxx and linux-mm@xxxxxxxxx.
config DAMON_DBGFS_KUNIT_TEST
bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
docs-admin-guide-mm-damon-usage-add-damon-debugfs-interface-deprecation-notice.patch
mm-damon-kconfig-add-damon-debugfs-interface-deprecation-notice.patch
mm-damon-dbgfs-print-damon-debugfs-interface-deprecation-message.patch
