2 files changed, 54 insertions, 0 deletions

diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index aae16ee17601..eaf46bdd18a5 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -299,6 +299,57 @@ TRACE_EVENT(mm_page_alloc,
                 show_gfp_flags(__entry->gfp_flags))
 );
 
+TRACE_EVENT(mm_page_alloc_zone_locked,
+
+        TP_PROTO(struct page *page, unsigned int order, int migratetype),
+
+        TP_ARGS(page, order, migratetype),
+
+        TP_STRUCT__entry(
+                __field(        struct page *,  page            )
+                __field(        unsigned int,   order           )
+                __field(        int,            migratetype     )
+        ),
+
+        TP_fast_assign(
+                __entry->page           = page;
+                __entry->order          = order;
+                __entry->migratetype    = migratetype;
+        ),
+
+        TP_printk("page=%p pfn=%lu order=%u migratetype=%d percpu_refill=%d",
+                __entry->page,
+                page_to_pfn(__entry->page),
+                __entry->order,
+                __entry->migratetype,
+                __entry->order == 0)
+);
+
+TRACE_EVENT(mm_page_pcpu_drain,
+
+        TP_PROTO(struct page *page, int order, int migratetype),
+
+        TP_ARGS(page, order, migratetype),
+
+        TP_STRUCT__entry(
+                __field(        struct page *,  page            )
+                __field(        int,            order           )
+                __field(        int,            migratetype     )
+        ),
+
+        TP_fast_assign(
+                __entry->page           = page;
+                __entry->order          = order;
+                __entry->migratetype    = migratetype;
+        ),
+
+        TP_printk("page=%p pfn=%lu order=%d migratetype=%d",
+                __entry->page,
+                page_to_pfn(__entry->page),
+                __entry->order,
+                __entry->migratetype)
+);
+
 TRACE_EVENT(mm_page_alloc_extfrag,
 
         TP_PROTO(struct page *page,
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 77f517c18b37..4c847cc57caf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -48,6 +48,7 @@
 #include <linux/page_cgroup.h>
 #include <linux/debugobjects.h>
 #include <linux/kmemleak.h>
+#include <trace/events/kmem.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -535,6 +536,7 @@ static void free_pages_bulk(struct zone *zone, int count,
                 page = list_entry(list->prev, struct page, lru);
                 /* have to delete it as __free_one_page list manipulates */
                 list_del(&page->lru);
+                trace_mm_page_pcpu_drain(page, order, page_private(page));
                 __free_one_page(page, zone, order, page_private(page));
         }
         spin_unlock(&zone->lock);
@@ -890,6 +892,7 @@ retry_reserve:
                 }
         }
 
+        trace_mm_page_alloc_zone_locked(page, order, migratetype);
         return page;
 }