On 06/07/2012 08:51 AM, Steven Rostedt wrote:
From: Thomas Gleixner<tglx@xxxxxxxxxxxxx>
Instead of making the lock raw, remove it as it protects nothing.
I don't know how you guys are managing the RT branch, but this seems
quite similar to:
a3c8b4faeeccb33dbad6969bc9e50bf409f167e7 (MIPS: Cavium: Remove
smp_reserve_lock.)
David Daney
Signed-off-by: Thomas Gleixner<tglx@xxxxxxxxxxxxx>
Cc: stable-rt@xxxxxxxxxxxxxxx
Signed-off-by: Steven Rostedt<rostedt@xxxxxxxxxxx>
---
arch/mips/cavium-octeon/smp.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index efcfff4..86fce15 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);
-
cpu_clear(cpu, cpu_online_map);
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;
}
--
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