'\" t
.\"     Title: drain_workqueue
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Driver Basics
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "DRAIN_WORKQUEUE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Driver Basics"
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.SH "NAME"
drain_workqueue \- drain a workqueue
.SH "SYNOPSIS"
.HP \w'void\ drain_workqueue('u
.BI "void drain_workqueue(struct\ workqueue_struct\ *\ " "wq" ");"
.SH "ARGUMENTS"
.PP
\fIwq\fR
.RS 4
workqueue to drain
.RE
.SH "DESCRIPTION"
.PP
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
\fIwq\fR
can queue further work items on it\&.
\fIwq\fR
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\&.
.SH "COPYRIGHT"
.br