chain_epi_lockless

Name:Chains a new epi entry to the tail of the ep->ovflist in a lockless way,* i.e. multiple CPUs are allowed to call this function concurrently.* Returns %false if epi element has been already chained, %true otherwise.

Proto:static inline bool chain_epi_lockless(struct epitem *epi)

Type:bool

Parameter:

Type	Parameter	Name
struct epitem *	epi

1156

ep = The "container" of this item

1159

If cmpxchg( & Works together "struct eventpoll"->ovflist in keeping the* single linked chain of items., EP_UNACTIVE_PTR, NULL) != EP_UNACTIVE_PTR Then Return false

1163

Works together "struct eventpoll"->ovflist in keeping the* single linked chain of items. = xchg( & * This is a single linked list that chains all the "struct epitem" that * happened while transferring ready events to userspace w/out * holding ->lock., epi)

1165

Return true

**Caller**
Name	Describe
ep_poll_callback	This is the callback that is passed to the wait queue wakeup* mechanism

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Function report