FOR_ALL_ZONES should be consistent with enum zone_type. Otherwise,
__count_zid_vm_events have the potential to add count to wrong
item when zid is ZONE_DEVICE.
Signed-off-by: Hao Lee <haolee.swjtu@xxxxxxxxx>
---
include/linux/vm_event_item.h | 9 ++++++++-
mm/vmstat.c | 9 ++++++++-
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 7b2363388bfa..bcd57ab55413 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -20,7 +20,14 @@
#define HIGHMEM_ZONE(xx)
#endif
-#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, HIGHMEM_ZONE(xx) xx##_MOVABLE
+#ifdef CONFIG_ZONE_DEVICE
+#define DEVICE_ZONE(xx) xx##_DEVICE
+#else
+#define DEVICE_ZONE(xx)
+#endif
+
+#define FOR_ALL_ZONES(xx) (DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, \
+ HIGHMEM_ZONE(xx) xx##_MOVABLE, DEVICE_ZONE(xx))
enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
FOR_ALL_ZONES(PGALLOC),
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4057372745d0..5ccaeac44e61 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1167,8 +1167,15 @@ int fragmentation_index(struct zone *zone, unsigned int order)
#define TEXT_FOR_HIGHMEM(xx)
#endif
+#ifdef CONFIG_ZONE_DEVICE
+#define TEXT_FOR_DEVICE(xx) xx "_device",
+#else
+#define TEXT_FOR_DEVICE(xx)
+#endif
+
#define TEXTS_FOR_ZONES(xx) TEXT_FOR_DMA(xx) TEXT_FOR_DMA32(xx) xx "_normal", \
- TEXT_FOR_HIGHMEM(xx) xx "_movable",
+ TEXT_FOR_HIGHMEM(xx) xx "_movable", \
+ TEXT_FOR_DEVICE(xx)
const char * const vmstat_text[] = {
/* enum zone_stat_item counters */
--
2.35.1
