centos man page for flush_delayed_work

FLUSH_DELAYED_WORK(9)						   Driver Basics					     FLUSH_DELAYED_WORK(9)

NAME
       flush_delayed_work - wait for a dwork to finish executing the last queueing

SYNOPSIS
       bool flush_delayed_work(struct delayed_work * dwork);

ARGUMENTS
       dwork
	   the delayed work to flush

DESCRIPTION
       Delayed timer is cancelled and the pending work is queued for immediate execution. Like flush_work, this function only considers the last
       queueing instance of dwork.

RETURNS
       true if flush_work waited for the work to finish execution, false if it was already idle.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     FLUSH_DELAYED_WORK(9)