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MIPS: Cavium: Remove smp_reserve_lock.

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There is nothing that is protected by this lock and it's getting in the
way of RT.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2012-05-17 22:52:29 +02:00
parent 6650df3c38
commit a3c8b4faee
1 changed files with 0 additions and 6 deletions
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6
arch/mips/cavium-octeon/smp.c
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@ -257,8 +257,6 @@ DEFINE_PER_CPU(int, cpu_state);
extern void fixup_irqs(void); extern void fixup_irqs(void);
static DEFINE_SPINLOCK(smp_reserve_lock);
static int octeon_cpu_disable(void) static int octeon_cpu_disable(void)
{ {
unsigned int cpu = smp_processor_id(); unsigned int cpu = smp_processor_id();
@ -266,8 +264,6 @@ static int octeon_cpu_disable(void)
if (cpu == 0) if (cpu == 0)
return -EBUSY; return -EBUSY;
spin_lock(&smp_reserve_lock);
set_cpu_online(cpu, false); set_cpu_online(cpu, false);
cpu_clear(cpu, cpu_callin_map); cpu_clear(cpu, cpu_callin_map);
local_irq_disable(); local_irq_disable();
@ -277,8 +273,6 @@ static int octeon_cpu_disable(void)
flush_cache_all(); flush_cache_all();
local_flush_tlb_all(); local_flush_tlb_all();
spin_unlock(&smp_reserve_lock);
return 0; return 0;
} }