thp: transparent hugepage vmstat

Add hugepage stat information to /proc/vmstat and /proc/meminfo.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index dad3612a7e3..02ecb0189b1 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -114,6 +114,7 @@ enum zone_stat_item {
         NUMA_LOCAL,             /* allocation from local node */
         NUMA_OTHER,             /* allocation from other node */
 #endif
+        NR_ANON_TRANSPARENT_HUGEPAGES,
         NR_VM_ZONE_STAT_ITEMS };
 
 /*