match_futex

函数名称：match_futex - Check whether two futex keys are equal*@key1: Pointer to key1*@key2: Pointer to key2* Return 1 if two futex_keys are equal, 0 otherwise.

函数原型：static inline int match_futex(union futex_key *key1, union futex_key *key2)

返回类型：int

参数：

类型	参数	名称
union futex_key *	key1
union futex_key *	key2

**调用者**
名称	描述
futex_top_waiter	ex_top_waiter() - Return the highest priority waiter on a futex@hb: the hash bucket the futex_q's reside in@key: the futex key (to distinguish it from other futex futex_q's)* Must be called with the hb lock held.
futex_wake	Wake up waiters matching bitset queued on this futex (uaddr).
futex_wake_op	Wake up all waiters hashed on the physical page that is mapped* to this virtual address:
futex_proxy_trylock_atomic	ex_proxy_trylock_atomic() - Attempt an atomic lock for the top waiter@pifutex: the user address of the to futex@hb1: the from futex hash bucket, must be locked by the caller@hb2: the to futex hash bucket, must be locked by the caller@key1: the from
futex_requeue	ex_requeue() - Requeue waiters from uaddr1 to uaddr2@uaddr1: source futex user address@flags: futex flags (FLAGS_SHARED, etc
handle_early_requeue_pi_wakeup	handle_early_requeue_pi_wakeup() - Detect early wakeup on the initial futex@hb: the hash_bucket futex_q was original enqueued on@q: the futex_q woken while waiting to be requeued@key2: the futex_key of the requeue target futex@timeout: the timeout
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

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