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-rw-r--r--mm/vmscan.c3
-rw-r--r--mm/vmstat.c1
2 files changed, 4 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6fbf707c0ce2..13d711dd8776 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1154,6 +1154,9 @@ static unsigned long shrink_page_list(struct list_head *page_list,
if (split_huge_page_to_list(page,
page_list))
goto activate_locked;
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ count_vm_event(THP_SWPOUT_FALLBACK);
+#endif
if (!add_to_swap(page))
goto activate_locked;
}
diff --git a/mm/vmstat.c b/mm/vmstat.c
index bccf426453cd..e131b51654c7 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1072,6 +1072,7 @@ const char * const vmstat_text[] = {
"thp_zero_page_alloc",
"thp_zero_page_alloc_failed",
"thp_swpout",
+ "thp_swpout_fallback",
#endif
#ifdef CONFIG_MEMORY_BALLOON
"balloon_inflate",