调用者| 名称 | 描述 |
|---|
| futex_requeue | ex_requeue() - Requeue waiters from uaddr1 to uaddr2*@uaddr1: source futex user address*@flags: futex flags (FLAGS_SHARED, etc |
| unqueue_me_pi | PI futexes can not be requeued and must remove themself from the* hash bucket. The hash bucket lock (i.e. lock_ptr) is held on entry* and dropped here. |
| futex_lock_pi | Userspace tried a 0 -> TID atomic transition of the futex value* and failed. The kernel side here does the whole locking operation:* if there are waiters then it will block as a consequence of relying* on rt-mutexes, it does PI, etc |
| futex_unlock_pi | Userspace attempted a TID -> 0 atomic transition, and failed.* This is the in-kernel slowpath: we look up the PI state (if any),* and do the rt-mutex unlock. |
| futex_wait_requeue_pi | ex_wait_requeue_pi() - Wait on uaddr and take uaddr2*@uaddr: the futex we initially wait on (non-pi)*@flags: futex flags (FLAGS_SHARED, FLAGS_CLOCKRT, etc |