NFS: Clean up - Rename nfs_unlock_request and nfs_unlock_request_dont_release

Function rename to ensure that the functionality of nfs_unlock_request()
mirrors that of nfs_lock_request(). Then let nfs_unlock_and_release_request()
do the work of what used to be called nfs_unlock_request()...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 263f30a..88d166b 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -96,7 +96,7 @@
 				struct nfs_page *req);
 extern  int nfs_wait_on_request(struct nfs_page *);
 extern	void nfs_unlock_request(struct nfs_page *req);
-extern void nfs_unlock_request_dont_release(struct nfs_page *req);
+extern	void nfs_unlock_and_release_request(struct nfs_page *req);
 
 /*
  * Lock the page of an asynchronous request