Add this include for a clean compile.

diff --git a/lustre/obdfilter/filter.c b/lustre/obdfilter/filter.c
index 78e8a47..7057a8e 100644 (file)
--- a/lustre/obdfilter/filter.c
+++ b/lustre/obdfilter/filter.c
@@ -16,6 +16,7 @@
 #define DEBUG_SUBSYSTEM S_FILTER
 
 #include <linux/module.h>
+#include <linux/pagemap.h>
 #include <linux/lustre_dlm.h>
 #include <linux/obd_filter.h>
 #include <linux/ext3_jbd.h>