3 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 8aa7cb94b5fb..a1f750b8e72a 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -42,6 +42,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
                 PGMIGRATE_SUCCESS, PGMIGRATE_FAIL,
 #endif
 #ifdef CONFIG_COMPACTION
+                COMPACTMIGRATE_SCANNED, COMPACTFREE_SCANNED,
+                COMPACTISOLATED,
                 COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,
 #endif
 #ifdef CONFIG_HUGETLB_PAGE
diff --git a/mm/compaction.c b/mm/compaction.c
index 2c077a78487c..aee7443a4d5a 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -356,6 +356,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
         if (blockpfn == end_pfn)
                 update_pageblock_skip(cc, valid_page, total_isolated, false);
 
+        count_vm_events(COMPACTFREE_SCANNED, nr_scanned);
+        if (total_isolated)
+                count_vm_events(COMPACTISOLATED, total_isolated);
+
         return total_isolated;
 }
 
@@ -646,6 +650,10 @@ next_pageblock:
 
         trace_mm_compaction_isolate_migratepages(nr_scanned, nr_isolated);
 
+        count_vm_events(COMPACTMIGRATE_SCANNED, nr_scanned);
+        if (nr_isolated)
+                count_vm_events(COMPACTISOLATED, nr_isolated);
+
         return low_pfn;
 }
 
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 89a7fd665b32..3a067fabe190 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -779,6 +779,9 @@ const char * const vmstat_text[] = {
         "pgmigrate_fail",
 #endif
 #ifdef CONFIG_COMPACTION
+        "compact_migrate_scanned",
+        "compact_free_scanned",
+        "compact_isolated",
         "compact_stall",
         "compact_fail",
         "compact_success",