From f4cba4bf6777b15d934a354e8aa07059112bf2e8 Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Mon, 29 Jan 2024 17:35:41 -0800 Subject: mm/damon: rename CONFIG_DAMON_DBGFS to DAMON_DBGFS_DEPRECATED DAMON debugfs interface is deprecated. The fact has documented by commit 5445fcbc4cda ("Docs/admin-guide/mm/damon/usage: add DAMON debugfs interface deprecation notice"). Commit 620932cd2852 ("mm/damon/dbgfs: print DAMON debugfs interface deprecation message") further started printing a warning message when users still use it. Many people don't read documentation or kernel log, though. Make the deprecation harder to be ignored using the approach of commit eb07c4f39c3e ("mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED"). 'make oldconfig' with 'CONFIG_DAMON_DBGFS=y' will get a new prompt with the explicit deprecation notice on the name. 'make olddefconfig' with 'CONFIG_DAMON_DBGFS=y' will result in not building DAMON debugfs interface. If there is a real user of DAMON debugfs interface, they will complain the change to the builder. Link: https://lkml.kernel.org/r/20240130013549.89538-3-sj@kernel.org Signed-off-by: SeongJae Park Cc: Alex Shi Cc: Hu Haowen <2023002089@link.tyut.edu.cn> Cc: Jonathan Corbet Cc: Shuah Khan Cc: Yanteng Si Signed-off-by: Andrew Morton --- mm/damon/Kconfig | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig index 29f43fbc2eff..fecb8172410c 100644 --- a/mm/damon/Kconfig +++ b/mm/damon/Kconfig @@ -71,7 +71,7 @@ config DAMON_SYSFS_KUNIT_TEST If unsure, say N. -config DAMON_DBGFS +config DAMON_DBGFS_DEPRECATED bool "DAMON debugfs interface (DEPRECATED!)" depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS help @@ -84,6 +84,11 @@ config DAMON_DBGFS (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 + bool + default y + depends on DAMON_DBGFS_DEPRECATED + config DAMON_DBGFS_KUNIT_TEST bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS depends on DAMON_DBGFS && KUNIT=y -- cgit v1.2.3