[PATCH][2.5] set_cpus_allowed needs cpu_online_map BUG check

[Zwane Mwaikambo]

We don't want to try and migrate to offline cpus, so BUG() on it.

diff -u -r1.1.1.1 sched.c
--- linux-2.5.61-trojan/kernel/sched.c	15 Feb 2003 12:32:44 -0000	1.1.1.1
+++ linux-2.5.61-trojan/kernel/sched.c	15 Feb 2003 16:04:51 -0000
@@ -2200,11 +2221,8 @@
 	migration_req_t req;
 	runqueue_t *rq;
 
-#if 0 /* FIXME: Grab cpu_lock, return error on this case. --RR */
-	new_mask &= cpu_online_map;
-	if (!new_mask)
+	if (!(new_mask & cpu_online_map))
 		BUG();
-#endif
 
 	rq = task_rq_lock(p, &flags);
 	p->cpus_allowed = new_mask;