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>
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 1d85d8c..d003b50 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -508,21 +508,18 @@
.done = COMPLETION_INITIALIZER(c_idle.done),
};
+ /*
+ * We can't use kernel_thread since we must avoid to
+ * reschedule the child.
+ */
c_idle.idle = get_idle_for_cpu(cpu);
if (c_idle.idle) {
init_idle(c_idle.idle, cpu);
goto do_rest;
}
- /*
- * We can't use kernel_thread since we must avoid to reschedule the child.
- */
- if (!keventd_up())
- c_idle.work.func(&c_idle.work);
- else {
- schedule_work(&c_idle.work);
- wait_for_completion(&c_idle.done);
- }
+ schedule_work(&c_idle.work);
+ wait_for_completion(&c_idle.done);
if (IS_ERR(c_idle.idle))
panic("failed fork for CPU %d", cpu);
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 5162095..a5e928b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -735,12 +735,8 @@
goto do_rest;
}
- if (!keventd_up())
- c_idle.work.func(&c_idle.work);
- else {
- schedule_work(&c_idle.work);
- wait_for_completion(&c_idle.done);
- }
+ schedule_work(&c_idle.work);
+ wait_for_completion(&c_idle.done);
if (IS_ERR(c_idle.idle)) {
printk("failed fork for CPU %d\n", cpu);