nfs: fix compile error in rpc_pipefs.h

This include is needed for the definition of delayed_work.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index a92571a34556..cf14db975da0 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <linux/workqueue.h>
+
 struct rpc_pipe_msg {
         struct list_head list;
         void *data;