static struct task_struct **reader_tasks;
static bool lock_is_write_held;
-static bool lock_is_read_held;
+static atomic_t lock_is_read_held;
static unsigned long last_lock_release;
struct lock_stress_stats {
if (WARN_ON_ONCE(lock_is_write_held))
lwsp->n_lock_fail++;
lock_is_write_held = true;
- if (WARN_ON_ONCE(lock_is_read_held))
+ if (WARN_ON_ONCE(atomic_read(&lock_is_read_held)))
lwsp->n_lock_fail++; /* rare, but... */
lwsp->n_lock_acquired++;
schedule_timeout_uninterruptible(1);
cxt.cur_ops->readlock(tid);
- lock_is_read_held = true;
+ atomic_inc(&lock_is_read_held);
if (WARN_ON_ONCE(lock_is_write_held))
lrsp->n_lock_fail++; /* rare, but... */
lrsp->n_lock_acquired++;
cxt.cur_ops->read_delay(&rand);
- lock_is_read_held = false;
+ atomic_dec(&lock_is_read_held);
cxt.cur_ops->readunlock(tid);
stutter_wait("lock_torture_reader");
}
if (nreaders_stress) {
- lock_is_read_held = false;
cxt.lrsa = kmalloc_array(cxt.nrealreaders_stress,
sizeof(*cxt.lrsa),
GFP_KERNEL);