NFS: Re-enable forced umounts

They disappeared some time around 2.6.18.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ca20d3cc2609..14c7923697d2 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -430,7 +430,20 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
  */
 static void nfs_umount_begin(struct vfsmount *vfsmnt, int flags)
 {
+        struct nfs_server *server = NFS_SB(vfsmnt->mnt_sb);
+        struct rpc_clnt *rpc;
+
         shrink_submounts(vfsmnt, &nfs_automount_list);
+
+        if (!(flags & MNT_FORCE))
+                return;
+        /* -EIO all pending I/O */
+        rpc = server->client_acl;
+        if (!IS_ERR(rpc))
+                rpc_killall_tasks(rpc);
+        rpc = server->client;
+        if (!IS_ERR(rpc))
+                rpc_killall_tasks(rpc);
 }
 
 /*