perf: Add calls to suspend trace point

[firefly-linux-kernel-4.4.55.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 30acdb74cc23bfb21d1dcc0a14433003c9e085b7..e785b0f2aea57f362f9528fb979f15716f7f2aa4 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -661,7 +661,7 @@ void wq_worker_waking_up(struct task_struct *task, unsigned int cpu)
 {
        struct worker *worker = kthread_data(task);
 
-       if (likely(!(worker->flags & WORKER_NOT_RUNNING)))
+       if (!(worker->flags & WORKER_NOT_RUNNING))
                atomic_inc(get_gcwq_nr_running(cpu));
 }
 
@@ -687,7 +687,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task,
        struct global_cwq *gcwq = get_gcwq(cpu);
        atomic_t *nr_running = get_gcwq_nr_running(cpu);
 
-       if (unlikely(worker->flags & WORKER_NOT_RUNNING))
+       if (worker->flags & WORKER_NOT_RUNNING)
                return NULL;
 
        /* this can only happen on the local cpu */
@@ -2064,7 +2064,7 @@ static void insert_wq_barrier(struct cpu_workqueue_struct *cwq,
         * checks and call back into the fixup functions where we
         * might deadlock.
         */
-       INIT_WORK_ON_STACK(&barr->work, wq_barrier_func);
+       INIT_WORK_ONSTACK(&barr->work, wq_barrier_func);
        __set_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(&barr->work));
        init_completion(&barr->done);
 
@@ -2791,7 +2791,9 @@ static int alloc_cwqs(struct workqueue_struct *wq)
                }
        }
 
-       /* just in case, make sure it's actually aligned */
+       /* just in case, make sure it's actually aligned
+        * - this is affected by PERCPU() alignment in vmlinux.lds.S
+        */
        BUG_ON(!IS_ALIGNED(wq->cpu_wq.v, align));
        return wq->cpu_wq.v ? 0 : -ENOMEM;
 }
@@ -3690,7 +3692,8 @@ static int __init init_workqueues(void)
        system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0);
        system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND,
                                            WQ_UNBOUND_MAX_ACTIVE);
-       BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq);
+       BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq ||
+              !system_unbound_wq);
        return 0;
 }
 early_initcall(init_workqueues);