io_wqe_wake_worker

Name:We need a worker. If we find a free one, we're good. If not, and we're* below the max number of workers, wake up the manager to create one.

Proto:static void io_wqe_wake_worker(struct io_wqe *wqe, struct io_wqe_acct *acct)

Type:void

Parameter:

Type	Parameter	Name
struct io_wqe *	wqe
struct io_wqe_acct *	acct

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WARN_ON_ONCE(!max_workers)

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_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

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ret = Check head of free list for an available worker. If one isn't available,* caller must wake up the wq manager to create one.

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_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()

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If Not ret && nr_workers < max_workers Then wake_up_process - Wake up a specific process*@p: The process to be woken up.* Attempt to wake up the nominated process and move it to the set of runnable* processes.* Return: 1 if the process was woken up, 0 if it was already running.

**Caller**
Name	Describe
io_wqe_dec_running
io_wqe_enqueue

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