nr_iowait
EXPORT_SYMBOL_GPL(nr_iowait);
os_data->nr_iowait = nr_iowait();
u32 nr_iowait; /* number of blocked threads
nr_iowait());
extern unsigned int nr_iowait(void);
atomic_dec(&task_rq(p)->nr_iowait);
atomic_dec(&task_rq(p)->nr_iowait);
return atomic_read(&cpu_rq(cpu)->nr_iowait);
atomic_set(&rq->nr_iowait, 0);
if (atomic_read(&rq->nr_iowait) > 0)
atomic_t nr_iowait;
atomic_inc(&rq->nr_iowait);