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x86: call do_boot_cpu directly from native_cpu_up 

We don't need __smp_prepare_cpu anymore.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Glauber de Oliveira Costa 2008-03-19 14:25:52 -03:00 committed by Ingo Molnar
parent 6becedbb06
commit 4370ee4d3b
1 changed files with 6 additions and 15 deletions
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21
arch/x86/kernel/smpboot_32.c
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@ -702,20 +702,6 @@ void cpu_exit_clear(void)
}
#endif
static void __cpuinit __smp_prepare_cpu(int cpu)
{
int apicid;
apicid = per_cpu(x86_cpu_to_apicid, 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();
do_boot_cpu(apicid, cpu);
}
static int boot_cpu_logical_apicid;
/* Where the IO area was mapped on multiquad, always 0 otherwise */
void *xquad_portio;
@ -872,7 +858,12 @@ int __cpuinit native_cpu_up(unsigned int cpu)
per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
__smp_prepare_cpu(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();
do_boot_cpu(apicid, cpu);
/* In case one didn't come up */
if (!cpu_isset(cpu, cpu_callin_map)) {