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authorIngo Molnar <mingo@elte.hu>2010-02-08 02:55:43 -0500
committerIngo Molnar <mingo@elte.hu>2010-02-08 02:55:46 -0500
commit6d3e0907b8b239d16720d144e2675ecf10d3bc3b (patch)
treee0b0743b5f6f82b057cafc4f3687396a6e01a0b4 /kernel/fork.c
parent23577256953c870de9b724c3a2611ce7be6a1e4e (diff)
parent50200df462023b187d80a99a52f5f2cfe3c86c26 (diff)
Merge branch 'sched/urgent' into sched/core
Merge reason: Merge dependent fix, update to latest -rc. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 5b2959b3ffc2..f88bd984df35 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1241,21 +1241,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
1241 /* Need tasklist lock for parent etc handling! */ 1241 /* Need tasklist lock for parent etc handling! */
1242 write_lock_irq(&tasklist_lock); 1242 write_lock_irq(&tasklist_lock);
1243 1243
1244 /*
1245 * The task hasn't been attached yet, so its cpus_allowed mask will
1246 * not be changed, nor will its assigned CPU.
1247 *
1248 * The cpus_allowed mask of the parent may have changed after it was
1249 * copied first time - so re-copy it here, then check the child's CPU
1250 * to ensure it is on a valid CPU (and if not, just force it back to
1251 * parent's CPU). This avoids alot of nasty races.
1252 */
1253 p->cpus_allowed = current->cpus_allowed;
1254 p->rt.nr_cpus_allowed = current->rt.nr_cpus_allowed;
1255 if (unlikely(!cpu_isset(task_cpu(p), p->cpus_allowed) ||
1256 !cpu_online(task_cpu(p))))
1257 set_task_cpu(p, smp_processor_id());
1258
1259 /* CLONE_PARENT re-uses the old parent */ 1244 /* CLONE_PARENT re-uses the old parent */
1260 if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) { 1245 if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) {
1261 p->real_parent = current->real_parent; 1246 p->real_parent = current->real_parent;