+/*
+ * debug_set_size:
+ * - set area size (number of pages) and number of areas
+ */
+static int
+debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)
+{
+ unsigned long flags;
+ debug_entry_t *** new_areas;
+ int rc=0;
+
+ if(!id || (nr_areas <= 0) || (pages_per_area < 0))
+ return -EINVAL;
+ if(pages_per_area > 0){
+ new_areas = debug_areas_alloc(pages_per_area, nr_areas);
+ if(!new_areas) {
+ printk(KERN_WARNING "debug: could not allocate memory "\
+ "for pagenumber: %i\n",pages_per_area);
+ rc = -ENOMEM;
+ goto out;
+ }
+ } else {
+ new_areas = NULL;
+ }
+ spin_lock_irqsave(&id->lock,flags);
+ debug_areas_free(id);
+ id->areas = new_areas;
+ id->nr_areas = nr_areas;
+ id->pages_per_area = pages_per_area;
+ id->active_area = 0;
+ memset(id->active_entries,0,sizeof(int)*id->nr_areas);
+ memset(id->active_pages, 0, sizeof(int)*id->nr_areas);
+ spin_unlock_irqrestore(&id->lock,flags);
+ printk(KERN_INFO "debug: %s: set new size (%i pages)\n"\
+ ,id->name, pages_per_area);
+out:
+ return rc;
+}
+