Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\eventpoll.c Create Date:2022-07-28 20:19:06
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:ep_remove_wait_queue

Proto:static void ep_remove_wait_queue(struct eppoll_entry *pwq)

Type:void

Parameter:

TypeParameterName
struct eppoll_entry *pwq
586  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
593  whead = smp_load_acquire( & The wait queue head that linked the "wait" wait queue item )
594  If whead Then remove_wait_queue(whead, & Wait queue item that will be linked to the target file wait* queue head.)
596  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
Caller
NameDescribe
ep_unregister_pollwaitThis function unregisters poll callbacks from the associated file* descriptor. Must be called with "mtx" held (or "epmutex" if called from* ep_free).