mutex_name
linux_mutex_init(_m, mutex_name(#_m), SX_NOWITNESS)
linux_mutex_init(_m, mutex_name(#_m), SX_DUPOK)
SX_SYSINIT_FLAGS(lock, &(lock).sx, mutex_name(#lock), SX_DUPOK)
linux_mutex_init(&lock->base, ww_class->mutex_name, SX_NOWITNESS);
const char *mutex_name;
.mutex_name = mutex_name(#name "_mutex") \