From 6aab42a4b53f9d0da19341dcacc0a3f2f2bef49e Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <aglo@citi.umich.edu>
Date: Fri, 25 Mar 2011 13:17:23 -0400
Subject: [PATCH] adding cancel routine to mount

a user process can start a mount command and ctl-c it before it completes.
the deamon then would have a mount that we can never unmount.
---
 daemon/mount.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/daemon/mount.c b/daemon/mount.c
index 9bb005a..4c2d6b2 100644
--- a/daemon/mount.c
+++ b/daemon/mount.c
@@ -122,10 +122,17 @@ out:
     return status;
 }
 
+static void cancel_mount(IN nfs41_upcall *upcall)
+{
+    mount_upcall_args *args = &upcall->args.mount;
+    nfs41_root_deref(args->root);
+}
+
 const nfs41_upcall_op nfs41_op_mount = {
     parse_mount,
     handle_mount,
-    marshall_mount
+    marshall_mount,
+    cancel_mount
 };