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
       determined by the depth of chaining and should be relatively short. Whine if it takes too
       long.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        DRAIN_WORKQUEUE(9)