md: Add in export.h for files using EXPORT_SYMBOL
These files were getting the defines for EXPORT_SYMBOL because
device.h was including module.h. But we are going to put an
end to that. So add the proper export.h include now.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index d1f1d70..3ac4156 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/vmalloc.h>
+#include <linux/export.h>
#include <linux/slab.h>
#include <linux/dm-io.h>