x86: don't span a new worker in __smp_prepare_cpu

We can do it now that do_boot_cpu has its own worker.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index fc1eb5255f66f0a12ac8250f0f9636499461fb8e..c03596e11db8b8db6299aa45ad1ee02db243f684 100644 (file)
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -699,44 +699,18 @@ void cpu_exit_clear(void)
 }
 #endif
 
-struct warm_boot_cpu_info {
-       struct completion *complete;
-       struct work_struct task;
-       int apicid;
-       int cpu;
-};
-
-static void __cpuinit do_warm_boot_cpu(struct work_struct *work)
-{
-       struct warm_boot_cpu_info *info =
-               container_of(work, struct warm_boot_cpu_info, task);
-       do_boot_cpu(info->apicid, info->cpu);
-       complete(info->complete);
-}
-
 static void __cpuinit __smp_prepare_cpu(int cpu)
 {
-       DECLARE_COMPLETION_ONSTACK(done);
-       struct warm_boot_cpu_info info;
        int     apicid;
 
        apicid = per_cpu(x86_cpu_to_apicid, cpu);
 
-       info.complete = &done;
-       info.apicid = apicid;
-       info.cpu = cpu;
-       INIT_WORK(&info.task, do_warm_boot_cpu);
-
        /* init low mem mapping */
        clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
                        min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS));
        flush_tlb_all();
-       if (!keventd_up() || current_is_keventd())
-               info.task.func(&info.task);
-       else {
-               schedule_work(&info.task);
-               wait_for_completion(&done);
-       }
+
+       do_boot_cpu(apicid, cpu);
 }
 
 static int boot_cpu_logical_apicid;