futex_lock_pi_atomic — Atomic work required to acquire a pi aware futex
int futex_lock_pi_atomic ( | u32 __user * uaddr, |
| struct futex_hash_bucket * hb, | |
| union futex_key * key, | |
| struct futex_pi_state ** ps, | |
| struct task_struct * task, | |
int set_waiters); |
uaddrthe pi futex user address
hbthe pi futex hash bucket
keythe futex key associated with uaddr and hb
psthe pi_state pointer where we store the result of the lookup
taskthe task to perform the atomic lock work for. This will be “current” except in the case of requeue pi.
set_waitersforce setting the FUTEX_WAITERS bit (1) or not (0)