From: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>
Because __cpu_disable is called in atomic context and spinlock
is a mutex on -rt.
Signed-off-by: Yong Zhang <yong.zhang0@xxxxxxxxx>
---
arch/mips/cavium-octeon/smp.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index ef9c34a..473c72b 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -257,7 +257,7 @@ DEFINE_PER_CPU(int, cpu_state);
extern void fixup_irqs(void);
-static DEFINE_SPINLOCK(smp_reserve_lock);
+static DEFINE_RAW_SPINLOCK(smp_reserve_lock);
static int octeon_cpu_disable(void)
{
@@ -266,7 +266,7 @@ static int octeon_cpu_disable(void)
if (cpu == 0)
return -EBUSY;
- spin_lock(&smp_reserve_lock);
+ raw_spin_lock(&smp_reserve_lock);
set_cpu_online(cpu, false);
cpu_clear(cpu, cpu_callin_map);
@@ -277,7 +277,7 @@ static int octeon_cpu_disable(void)
flush_cache_all();
local_flush_tlb_all();
- spin_unlock(&smp_reserve_lock);
+ raw_spin_unlock(&smp_reserve_lock);
return 0;
}
--
1.7.1
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