NFS: Replace file->private_data with calls to nfs_file_open_context()

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index c55a761..7a1b6e8 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -52,7 +52,7 @@
 	for (fl = inode->i_flock; fl != 0; fl = fl->fl_next) {
 		if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
 			continue;
-		if ((struct nfs_open_context *)fl->fl_file->private_data != ctx)
+		if (nfs_file_open_context(fl->fl_file) != ctx)
 			continue;
 		status = nfs4_lock_delegation_recall(state, fl);
 		if (status >= 0)