doc: offline CPUs aren't really supported anymore

The Linux kernel doesn't report topology for offline CPUs anymore,
so these CPUs just go in complete_cpuset.
That's why we don't have online_cpuset anymore in 2.0.

Refs #226.

Signed-off-by: Brice Goglin <[email protected]>

Author: bgoglin

doc/hwloc.doxy

@@ -1,6 +1,6 @@
 /*
  * Copyright © 2009 CNRS
- * Copyright © 2009-2016 Inria.  All rights reserved.
+ * Copyright © 2009-2017 Inria.  All rights reserved.
  * Copyright © 2009-2013 Université Bordeaux
  * Copyright © 2009-2014 Cisco Systems, Inc.  All rights reserved.
  * See COPYING in top-level directory.
@@ -37,7 +37,7 @@ hwloc supports the following operating systems:
 
 <ul>
 <li>Linux (including old kernels not having sysfs topology
-information, with knowledge of cpusets, offline CPUs and ScaleMP vSMP)
+information, with knowledge of cpusets, ScaleMP vSMP support, etc.)
 on all supported hardware, including Intel Xeon Phi
 (KNL and KNC, either standalone or as a coprocessor)
 and NumaScale NumaConnect.</li>

include/hwloc.h

@@ -427,8 +427,8 @@ struct hwloc_obj {
                                           */
   hwloc_cpuset_t complete_cpuset;       /**< \brief The complete CPU set of logical processors of this object,
                                           *
-                                          * This may include not only the same as the cpuset field, but also the CPUs for
-                                          * which topology information is unknown or incomplete, the offlines CPUS, and
+                                          * This may include not only the same as the cpuset field, but also some CPUs for
+                                          * which topology information is unknown or incomplete, some offlines CPUs, and
                                           * the CPUs that are ignored when the ::HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM flag
                                           * is not set.
                                           * Thus no corresponding PU object may be found in the topology, because the
@@ -470,8 +470,8 @@ struct hwloc_obj {
                                           */
   hwloc_nodeset_t complete_nodeset;     /**< \brief The complete NUMA node set of this object,
                                           *
-                                          * This may include not only the same as the nodeset field, but also the NUMA
-                                          * nodes for which topology information is unknown or incomplete, the offlines
+                                          * This may include not only the same as the nodeset field, but also some NUMA
+                                          * nodes for which topology information is unknown or incomplete, some offlines
                                           * nodes, and the nodes that are ignored when the ::HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM
                                           * flag is not set.
                                           * Thus no corresponding NUMA node object may be found in the topology, because the