From: SeongJae Park <sj@kernel.org>
To: SeongJae Park <sj@kernel.org>, Andrew Morton <akpm@linux-foundation.org>
Cc: damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/3] mm/damon/Kconfig: add DAMON debugfs interface deprecation notice
Date: Fri, 10 Feb 2023 04:48:37 +0000 [thread overview]
Message-ID: <20230210044838.63723-3-sj@kernel.org> (raw)
In-Reply-To: <20230210044838.63723-1-sj@kernel.org>
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
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/Kconfig | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 7821fcb3f258..436c6b4cb5ec 100644
--- a/mm/damon/Kconfig
+++ b/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@lists.linux.dev and linux-mm@kvack.org.
config DAMON_DBGFS_KUNIT_TEST
bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS
--
2.25.1
next prev parent reply other threads:[~2023-02-10 4:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 4:48 [PATCH v2 0/3] mm/damon: deprecate DAMON debugfs interface SeongJae Park
2023-02-10 4:48 ` [PATCH v2 1/3] Docs/admin-guide/mm/damon/usage: add DAMON debugfs interface deprecation notice SeongJae Park
2023-02-10 4:48 ` SeongJae Park [this message]
2023-02-10 4:48 ` [PATCH v2 3/3] mm/damon/dbgfs: print DAMON debugfs interface deprecation message SeongJae Park
2023-02-10 18:28 ` [PATCH v2 0/3] mm/damon: deprecate DAMON debugfs interface SeongJae Park
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