Commit 65525488fa86 ("proc: add kpageidle file") introduces code
which depends on MMU_NOTIFIER, yet the newly introduced configuration
flag does not declare that dependency. This results in the following
build failures seen if IDLE_PAGE_TRACKING is configured but MMU_NOTIFIER
is not.
fs/proc/page.c: In function 'kpageidle_clear_pte_refs_one':
fs/proc/page.c:341:4: error:
implicit declaration of function 'pmdp_clear_young_notify'
fs/proc/page.c:347:4: error:
implicit declaration of function 'ptep_clear_young_notify'
Fixes: 65525488fa86 ("proc: add kpageidle file")
Cc: Andrew Morton <[email protected]>
Cc: Andres Lagar-Cavilla <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
---
mm/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/Kconfig b/mm/Kconfig
index 7e9ccb438985..b73b41c3217b 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -651,6 +651,7 @@ config DEFERRED_STRUCT_PAGE_INIT
config IDLE_PAGE_TRACKING
bool "Enable idle page tracking"
+ depends on MMU_NOTIFIER
select PROC_PAGE_MONITOR
select PAGE_EXTENSION if !64BIT
help
--
2.1.0
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