[DLM] fix userland unlock

This patch fixes the userland DLM unlock code so that it correctly returns the
address of the userland lock status block in its completion AST.

It fixes bug #201348

Patrick

Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 7d38f91..bb2e351 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -3699,6 +3699,7 @@
 	if (lvb_in && ua->lksb.sb_lvbptr)
 		memcpy(ua->lksb.sb_lvbptr, lvb_in, DLM_USER_LVB_LEN);
 	ua->castparam = ua_tmp->castparam;
+	ua->user_lksb = ua_tmp->user_lksb;
 
 	error = set_unlock_args(flags, ua, &args);
 	if (error)