Permit limited changes to core reservations (e.g. user/account access)

doc/html/disclaimer.shtml

@@ -48,6 +48,7 @@ SLURM's code and documenation files:<br>
 Copyright (C) 2011 Trinity Centre for High Performance Computing<br>
 Copyright (C) 2010-2012 SchedMD LLC<br>
 Copyright (C) 2009 CEA/DAM/DIF<br>
+Copyright (C) 2012 CSC-IT Center for Science Ltd.<br>
 Copyright (C) 2009-2011 Centro Svizzero di Calcolo Scientifico (CSCS)<br>
 Copyright (C) 2008-2011 Lawrence Livermore National Security<br>
 Copyright (C) 2008 Vijay Ramasubramanian<br>

src/slurmctld/reservation.c

@@ -1828,8 +1828,9 @@ extern int update_resv(resv_desc_msg_t *resv_desc_ptr)
 	if (!resv_ptr)
 		return ESLURM_RESERVATION_INVALID;
 
-	/* TODO: core based reservation updates */
-	if (resv_ptr->full_nodes == 0)
+	/* FIXME: Support more core based reservation updates */
+	if ((resv_ptr->full_nodes == 0) &&
+	    (resv_desc_ptr->node_cnt || resv_desc_ptr->node_list))
 		return ESLURM_RESERVATION_NOT_USABLE;
 
 	/* Make backup to restore state in case of failure */