Sync up MR_DEMOTION to migrate_reason_names and add a synch prompt.
Fixes: 26aa2d199d6f ("mm/migrate: demote pages during reclaim")
Signed-off-by: Weizhao Ouyang <o451686892@xxxxxxxxx>
Reviewed-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
---
include/linux/migrate.h | 6 +++++-
mm/debug.c | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 326250996b4e..c8077e936691 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -19,6 +19,11 @@ struct migration_target_control;
*/
#define MIGRATEPAGE_SUCCESS 0
+/*
+ * Keep sync with:
+ * - macro MIGRATE_REASON in include/trace/events/migrate.h
+ * - migrate_reason_names[MR_TYPES] in mm/debug.c
+ */
enum migrate_reason {
MR_COMPACTION,
MR_MEMORY_FAILURE,
@@ -32,7 +37,6 @@ enum migrate_reason {
MR_TYPES
};
-/* In mm/debug.c; also keep sync with include/trace/events/migrate.h */
extern const char *migrate_reason_names[MR_TYPES];
#ifdef CONFIG_MIGRATION
diff --git a/mm/debug.c b/mm/debug.c
index e61037cded98..fae0f81ad831 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -26,6 +26,7 @@ const char *migrate_reason_names[MR_TYPES] = {
"numa_misplaced",
"contig_range",
"longterm_pin",
+ "demotion",
};
const struct trace_print_flags pageflag_names[] = {
--
2.30.2
