+ if (!xchg(&reboot_notifier_registered, true))
+ register_reboot_notifier(&cmci_reboot_notifier);
This is super-safe ... but isn't the xchg() overkill? I thought we serialized
bringup
of other cpus.
Has this "do it once" caught on elsewhere in the kernel ... I suppose it is
more concise than
if (!reboot_notifier_registered) {
reboot_notifier_registered = 1;
register_reboot_notifier(&cmci_reboot_notifier);
}
-Tony
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
