dio: using prefetch requires including prefetch.h

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/direct-io.c b/fs/direct-io.c
index a05ca0555ea201990908fd373f20c3389f23a475..8d22849ada3f9f470d5d1d2eabe35d3993f40636 100644 (file)
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -36,6 +36,7 @@
 #include <linux/rwsem.h>
 #include <linux/uio.h>
 #include <linux/atomic.h>
+#include <linux/prefetch.h>
 
 /*
  * How many user pages to map in one call to get_user_pages().  This determines