From 8e255baa449df3049a8827a7f1f4f12b6921d0d1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 8 Apr 2009 21:06:35 -0700 Subject: [PATCH] sparc64: Fix smp_callin() locking. Interrupts must be disabled when taking the IPI lock. Caught by lockdep. Reported-by: Meelis Roos Signed-off-by: David S. Miller --- arch/sparc/kernel/smp_64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 708e12a26b05..f7642e5a94db 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -118,9 +118,9 @@ void __cpuinit smp_callin(void) while (!cpu_isset(cpuid, smp_commenced_mask)) rmb(); - ipi_call_lock(); + ipi_call_lock_irq(); cpu_set(cpuid, cpu_online_map); - ipi_call_unlock(); + ipi_call_unlock_irq(); /* idle thread is expected to have preempt disabled */ preempt_disable(); -- 2.39.5