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Commit a3c8b4fa authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Cavium: Remove smp_reserve_lock. 



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

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 6650df3c

arch/mips/cavium-octeon/smp.c

+0 −6
Original line number Diff line number Diff line
@@ -257,8 +257,6 @@ DEFINE_PER_CPU(int, cpu_state); 


extern void fixup_irqs(void);



static DEFINE_SPINLOCK(smp_reserve_lock);



static int octeon_cpu_disable(void)

{

	unsigned int cpu = smp_processor_id();
@@ -266,8 +264,6 @@ static int octeon_cpu_disable(void) 
	if (cpu == 0)

		return -EBUSY;



	spin_lock(&smp_reserve_lock);



	set_cpu_online(cpu, false);

	cpu_clear(cpu, cpu_callin_map);

	local_irq_disable();
@@ -277,8 +273,6 @@ static int octeon_cpu_disable(void) 
	flush_cache_all();

	local_flush_tlb_all();



	spin_unlock(&smp_reserve_lock);



	return 0;

}