From: Thomas Gleixner Date: Sat, 25 Jul 2009 14:49:55 +0000 (+0200) Subject: x86: Convert nmi_lock to raw_spinlock X-Git-Tag: firefly_0821_release~9833^2~3039^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0fdc7a8022c3eaff6b5ee27ffb9e913e5e58d8e9;p=firefly-linux-kernel-4.4.55.git x86: Convert nmi_lock to raw_spinlock nmi_lock must be a spinning spinlock in -rt. Signed-off-by: Thomas Gleixner --- diff --git a/arch/x86/kernel/apic/nmi.c b/arch/x86/kernel/apic/nmi.c index 0159a69396cb..24e7742d633a 100644 --- a/arch/x86/kernel/apic/nmi.c +++ b/arch/x86/kernel/apic/nmi.c @@ -416,13 +416,13 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason) /* We can be called before check_nmi_watchdog, hence NULL check. */ if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) { - static DEFINE_SPINLOCK(lock); /* Serialise the printks */ + static DEFINE_RAW_SPINLOCK(lock); /* Serialise the printks */ - spin_lock(&lock); + raw_spin_lock(&lock); printk(KERN_WARNING "NMI backtrace for cpu %d\n", cpu); show_regs(regs); dump_stack(); - spin_unlock(&lock); + raw_spin_unlock(&lock); cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask)); rc = 1;