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