diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index c90a1e8..789b6ad 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -211,7 +211,8 @@
 	avail_dirty = dirty -
 		(global_page_state(NR_FILE_DIRTY) +
 		 global_page_state(NR_WRITEBACK) +
-		 global_page_state(NR_UNSTABLE_NFS));
+		 global_page_state(NR_UNSTABLE_NFS) +
+		 global_page_state(NR_WRITEBACK_TEMP));
 
 	if (avail_dirty < 0)
 		avail_dirty = 0;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 280a7ed..1a32130 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -612,6 +612,7 @@
 	"nr_unstable",
 	"nr_bounce",
 	"nr_vmscan_write",
+	"nr_writeback_temp",
 
 #ifdef CONFIG_NUMA
 	"numa_hit",