Add a new build config that will enable additional DAMON sanity checks.
It is recommended to be enabled on only development and test setups,
since it can impose additional overhead.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/Kconfig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 8c868f7035fce..34631a44cdecb 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -12,6 +12,17 @@ config DAMON
 	  See https://www.kernel.org/doc/html/latest/mm/damon/index.html for
 	  more information.
 
+config DAMON_DEBUG_SANITY
+	bool "Check sanity of DAMON code"
+	depends on DAMON
+	help
+	  This enables additional DAMON debugging-purpose sanity checks in
+	  DAMON code.  This can be useful for finding bugs, but impose
+	  additional overhead.  This is therefore recommended to be enabled on
+	  only development and test setups.
+
+	  If unsure, say N.
+
 config DAMON_KUNIT_TEST
 	bool "Test for damon" if !KUNIT_ALL_TESTS
 	depends on DAMON && KUNIT=y
-- 
2.47.3