diff options
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/machine_kexec.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c index 35175eb2e8b0..93936dce04d6 100644 --- a/arch/mips/kernel/machine_kexec.c +++ b/arch/mips/kernel/machine_kexec.c @@ -173,6 +173,16 @@ void kexec_reboot(void) { void (*do_kexec)(void) __noreturn; + /* + * We know we were online, and there will be no incoming IPIs at + * this point. Mark online again before rebooting so that the crash + * analysis tool will see us correctly. + */ + set_cpu_online(smp_processor_id(), true); + + /* Ensure remote CPUs observe that we're online before rebooting. */ + smp_mb__after_atomic(); + #ifdef CONFIG_SMP if (smp_processor_id() > 0) { /* |