clear_wb_congested

Name:clear_wb_congested

Proto:void clear_wb_congested(struct bdi_writeback_congested *congested, int sync)

Type:void

Parameter:

Type	Parameter	Name
struct bdi_writeback_congested *	congested
int	sync

1054

wqh = congestion_wqh[sync]

1057

bit = If sync Then The sync queue is getting full Else The async (write) queue is getting full

1058

If st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier). Then atomic_dec( & nr_wb_congested[sync])

1060

smp_mb__after_atomic()

1061

If waitqueue_active -- locklessly test for waiters on the queue*@wq_head: the waitqueue to test for waiters* returns true if the wait list is not empty* NOTE: this function is lockless and requires care, incorrect usage _will_ Then wake_up(wqh)

**Caller**
Name	Describe
clear_bdi_congested

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