DRAIN_WORKQUEUE(9) Driver Basics DRAIN_WORKQUEUE(9)
NAME
drain_workqueue - drain a workqueue
SYNOPSIS
void drain_workqueue(struct workqueue_struct * wq);
ARGUMENTS
wq
workqueue to drain
DESCRIPTION
Wait until the workqueue becomes empty. While draining is in progress, only chain queueing is allowed. IOW, only currently pending or
running work items on wq can queue further work items on it. wq is flushed repeatedly until it becomes empty. The number of flushing is
detemined by the depth of chaining and should be relatively short. Whine if it takes too long.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 DRAIN_WORKQUEUE(9)
