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| author | Petr Mladek <pmladek@suse.com> | 2018-08-14 14:36:15 +0300 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2018-08-14 14:36:15 +0300 |
| commit | 9f68cb579115faa211ae067b4628cf11162783fb (patch) | |
| tree | 051146dd180af1b8a368d1a53b78c78920e15f64 /lib | |
| parent | 554ec508653688c21d9b8024af73a1ffaa0164b9 (diff) | |
| parent | 03fc7f9c99c1e7ae2925d459e8487f1a6f199f79 (diff) | |
| download | linux-9f68cb579115faa211ae067b4628cf11162783fb.tar.xz | |
Merge branch 'for-4.19-nmi' into for-linus
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/nmi_backtrace.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c index 61a6b5aab07e..15ca78e1c7d4 100644 --- a/lib/nmi_backtrace.c +++ b/lib/nmi_backtrace.c @@ -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; } |