From: Ralf Baechle Date: Thu, 17 May 2012 20:52:29 +0000 (+0200) Subject: MIPS: Cavium: Remove smp_reserve_lock. X-Git-Tag: upstream/snapshot3+hdmi~7341^2^3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a3c8b4faeeccb33dbad6969bc9e50bf409f167e7;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git 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: Ralf Baechle --- diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index 97e7ce9..4b93048 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -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; }