Eric Lee / linux-smarc-t335x-v3.2

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Commit d7a7c573936a86474c4a5090a45a4bc6e680c117

Authored by Suresh Siddha
Committed by Linus Torvalds
1 parent e446127134
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

x86, ia64, smp: use workqueues unconditionally during do_boot_cpu() 

Workqueues are now initialized as part of the early_initcall().  So they
are available for use during cold boot process aswell.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 2 changed files with 8 additions and 15 deletions Side-by-side Diff

arch/ia64/kernel/smpboot.c
Diff comments   View file @ d7a7c57
... ... @@ -508,21 +508,18 @@
508 508 .done = COMPLETION_INITIALIZER(c_idle.done),
509 509 };
510 510  
  511 + /*
  512 + * We can't use kernel_thread since we must avoid to
  513 + * reschedule the child.
  514 + */
511 515 c_idle.idle = get_idle_for_cpu(cpu);
512 516 if (c_idle.idle) {
513 517 init_idle(c_idle.idle, cpu);
514 518 goto do_rest;
515 519 }
516 520  
517   - /*
518   - * We can't use kernel_thread since we must avoid to reschedule the child.
519   - */
520   - if (!keventd_up())
521   - c_idle.work.func(&c_idle.work);
522   - else {
523   - schedule_work(&c_idle.work);
524   - wait_for_completion(&c_idle.done);
525   - }
  521 + schedule_work(&c_idle.work);
  522 + wait_for_completion(&c_idle.done);
526 523  
527 524 if (IS_ERR(c_idle.idle))
528 525 panic("failed fork for CPU %d", cpu);
arch/x86/kernel/smpboot.c
Diff comments   View file @ d7a7c57
... ... @@ -735,12 +735,8 @@
735 735 goto do_rest;
736 736 }
737 737  
738   - if (!keventd_up())
739   - c_idle.work.func(&c_idle.work);
740   - else {
741   - schedule_work(&c_idle.work);
742   - wait_for_completion(&c_idle.done);
743   - }
  738 + schedule_work(&c_idle.work);
  739 + wait_for_completion(&c_idle.done);
744 740  
745 741 if (IS_ERR(c_idle.idle)) {
746 742 printk("failed fork for CPU %d\n", cpu);