iwlwifi: fix and add missing sta_lock usage

[pandora-kernel.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 5b2959b..17bbf09 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -86,6 +86,7 @@ int max_threads;              /* tunable limit on nr_threads */
 DEFINE_PER_CPU(unsigned long, process_counts) = 0;
 
 __cacheline_aligned DEFINE_RWLOCK(tasklist_lock);  /* outer */
+EXPORT_SYMBOL_GPL(tasklist_lock);
 
 int nr_processes(void)
 {
@@ -1241,21 +1242,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
        /* Need tasklist lock for parent etc handling! */
        write_lock_irq(&tasklist_lock);
 
-       /*
-        * The task hasn't been attached yet, so its cpus_allowed mask will
-        * not be changed, nor will its assigned CPU.
-        *
-        * The cpus_allowed mask of the parent may have changed after it was
-        * copied first time - so re-copy it here, then check the child's CPU
-        * to ensure it is on a valid CPU (and if not, just force it back to
-        * parent's CPU). This avoids alot of nasty races.
-        */
-       p->cpus_allowed = current->cpus_allowed;
-       p->rt.nr_cpus_allowed = current->rt.nr_cpus_allowed;
-       if (unlikely(!cpu_isset(task_cpu(p), p->cpus_allowed) ||
-                       !cpu_online(task_cpu(p))))
-               set_task_cpu(p, smp_processor_id());
-
        /* CLONE_PARENT re-uses the old parent */
        if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) {
                p->real_parent = current->real_parent;