[PATCH] Add hugepage-size option

We default to 4MiB, but export the setting so it can be changed.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.h b/fio.h
index 432c098..df36f14 100644
--- a/fio.h
+++ b/fio.h
@@ -214,6 +214,7 @@
 	unsigned int bs[2];
 	unsigned int min_bs[2];
 	unsigned int max_bs[2];
+	unsigned int hugepage_size;
 	unsigned int rw_min_bs;
 	unsigned int thinktime;
 	unsigned int fsync_blocks;