xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branch 'for-4.19-nmi' into for-linus

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This commit is contained in:
Petr Mladek
2018-08-14 13:36:15 +02:00
parent 554ec50865 03fc7f9c99
commit 9f68cb5791
6 changed files with 87 additions and 48 deletions
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3
lib/nmi_backtrace.c
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@@ -87,11 +87,9 @@ void nmi_trigger_cpumask_backtrace(const cpumask_t *mask,
bool nmi_cpu_backtrace(struct pt_regs *regs)
{
static arch_spinlock_t lock = __ARCH_SPIN_LOCK_UNLOCKED;
int cpu = smp_processor_id();
if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) {
arch_spin_lock(&lock);
if (regs && cpu_in_idle(instruction_pointer(regs))) {
pr_warn("NMI backtrace for cpu %d skipped: idling at %pS\n",
cpu, (void *)instruction_pointer(regs));
@@ -102,7 +100,6 @@ bool nmi_cpu_backtrace(struct pt_regs *regs)
else
dump_stack();
}
arch_spin_unlock(&lock);
cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask));
return true;
}