289 /* The nodes for the mutex reside in this structure (on which we try to avoid
295 } nodes[NUM_CONTEXTS] __attribute__((__aligned__(64)));  variable
303     nodes[id].next = -1;  in mcs_mutex_lock()
304     nodes[id].locked = 1;  in mcs_mutex_lock()
307         qatomic_set(&nodes[prev].next, id);  in mcs_mutex_lock()
308         while (qatomic_read(&nodes[id].locked) == 1) {  in mcs_mutex_lock()
309             qemu_futex_wait(&nodes[id].locked, 1);  in mcs_mutex_lock()
317     if (qatomic_read(&nodes[id].next) == -1) {  in mcs_mutex_unlock()
323         while (qatomic_read(&nodes[id].next) == -1) {  in mcs_mutex_unlock()
325              * nodes[prev].next yet.  in mcs_mutex_unlock()
331     next = qatomic_read(&nodes[id].next);  in mcs_mutex_unlock()
332     nodes[next].locked = 0;  in mcs_mutex_unlock()
333     qemu_futex_wake_single(&nodes[next].locked);  in mcs_mutex_unlock()