centos man page for complete_all

COMPLETE_ALL(9) 						   Driver Basics						   COMPLETE_ALL(9)

NAME
       complete_all - signals all threads waiting on this completion

SYNOPSIS
       void complete_all(struct completion * x);

ARGUMENTS
       x
	   holds the state of this particular completion

DESCRIPTION
       This will wake up all threads waiting on this particular completion event.

       It may be assumed that this function implies a write memory barrier before changing the task state if and only if any tasks are woken up.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							   COMPLETE_ALL(9)