dlm: remove dlm_send_rcom_lookup_dump

This function was only for debugging.  It would be
called in a condition that should not happen, and
should probably have been removed from the final
version of the original commit.

Remove it because it does mutex lock under spin lock.

Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/lock.c

@@ -1003,7 +1003,6 @@ int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, char *name, int len,
 		if (r->res_master_nodeid == our_nodeid) {
 			log_error(ls, "from_master %d our_master", from_nodeid);
 			dlm_dump_rsb(r);
-			dlm_send_rcom_lookup_dump(r, from_nodeid);
 			goto out_found;
 		}
 

fs/dlm/rcom.c

@@ -338,25 +338,6 @@ int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid)
 	return error;
 }
 
-int dlm_send_rcom_lookup_dump(struct dlm_rsb *r, int to_nodeid)
-{
-	struct dlm_rcom *rc;
-	struct dlm_mhandle *mh;
-	struct dlm_ls *ls = r->res_ls;
-	int error;
-
-	error = create_rcom(ls, to_nodeid, DLM_RCOM_LOOKUP, r->res_length,
-			    &rc, &mh);
-	if (error)
-		goto out;
-	memcpy(rc->rc_buf, r->res_name, r->res_length);
-	rc->rc_id = 0xFFFFFFFF;
-
-	send_rcom(ls, mh, rc);
- out:
-	return error;
-}
-
 static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 {
 	struct dlm_rcom *rc;
@@ -368,6 +349,7 @@ static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 	if (error)
 		return;
 
+	/* Old code would send this special id to trigger a debug dump. */
 	if (rc_in->rc_id == 0xFFFFFFFF) {
 		log_error(ls, "receive_rcom_lookup dump from %d", nodeid);
 		dlm_dump_rsb_name(ls, rc_in->rc_buf, len);

fs/dlm/rcom.h

@@ -17,7 +17,6 @@
 int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags);
 int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name,int last_len);
 int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid);
-int dlm_send_rcom_lookup_dump(struct dlm_rsb *r, int to_nodeid);
 int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb);
 void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid);
 int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in);