Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:
 "Mostly patches to initialize workqueue subsystem earlier and get rid
  of keventd_up().

  The patches were headed for the last merge cycle but got delayed due
  to a bug found late minute, which is fixed now.

  Also, to help debugging, destroy_workqueue() is more chatty now on a
  sanity check failure."

* 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: move wq_numa_init() to workqueue_init()
  workqueue: remove keventd_up()
  debugobj, workqueue: remove keventd_up() usage
  slab, workqueue: remove keventd_up() usage
  power, workqueue: remove keventd_up() usage
  tty, workqueue: remove keventd_up() usage
  mce, workqueue: remove keventd_up() usage
  workqueue: make workqueue available early during boot
  workqueue: dump workqueue state on sanity check failures in destroy_workqueue()

1 files changed, 10 insertions, 0 deletions

diff --git a/init/main.c b/init/main.c
index fa201166cba7..23c275cca73a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -553,6 +553,14 @@ asmlinkage __visible void __init start_kernel(void)
                  "Interrupts were enabled *very* early, fixing it\n"))
                 local_irq_disable();
         idr_init_cache();
+
+        /*
+         * Allow workqueue creation and work item queueing/cancelling
+         * early.  Work item execution depends on kthreads and starts after
+         * workqueue_init().
+         */
+        workqueue_init_early();
+
         rcu_init();
 
         /* trace_printk() and trace points may be used after this */
@@ -1009,6 +1017,8 @@ static noinline void __init kernel_init_freeable(void)
 
         smp_prepare_cpus(setup_max_cpus);
 
+        workqueue_init();
+
         do_pre_smp_initcalls();
         lockup_detector_init();