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Subject[PATCH][2.5] set_cpus_allowed needs cpu_online_map BUG check
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;
-
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