diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/smp.h | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/machine_kexec.c | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 12 |
3 files changed, 13 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h index 55f08c5acfad..f82b447bd34f 100644 --- a/arch/arm64/include/asm/smp.h +++ b/arch/arm64/include/asm/smp.h @@ -148,7 +148,7 @@ static inline void cpu_panic_kernel(void) */ bool cpus_are_stuck_in_kernel(void); -extern void smp_send_crash_stop(void); +extern void crash_smp_send_stop(void); extern bool smp_crash_stop_failed(void); #endif /* ifndef __ASSEMBLY__ */ diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 481f54a866c5..11121f608eb5 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -252,7 +252,7 @@ void machine_crash_shutdown(struct pt_regs *regs) local_irq_disable(); /* shutdown non-crashing cpus */ - smp_send_crash_stop(); + crash_smp_send_stop(); /* for crashing cpu */ crash_save_cpu(regs, smp_processor_id()); diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index f13ddb2404f9..ffe089942ac4 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -977,11 +977,21 @@ void smp_send_stop(void) } #ifdef CONFIG_KEXEC_CORE -void smp_send_crash_stop(void) +void crash_smp_send_stop(void) { + static int cpus_stopped; cpumask_t mask; unsigned long timeout; + /* + * This function can be called twice in panic path, but obviously + * we execute this only once. + */ + if (cpus_stopped) + return; + + cpus_stopped = 1; + if (num_online_cpus() == 1) return; |