mod_timer_pinned(9) centos man page | unix.com

MOD_TIMER_PINNED(9)						   Driver Basics					       MOD_TIMER_PINNED(9)

NAME
       mod_timer_pinned - modify a timer's timeout

SYNOPSIS
       int mod_timer_pinned(struct timer_list * timer, unsigned long expires);

ARGUMENTS
       timer
	   the timer to be modified

       expires
	   new timeout in jiffies

DESCRIPTION
       mod_timer_pinned is a way to update the expire field of an active timer (if the timer is inactive it will be activated) and to ensure that
       the timer is scheduled on the current CPU.

       Note that this does not prevent the timer from being migrated when the current CPU goes offline. If this is a problem for you, use
       CPU-hotplug notifiers to handle it correctly, for example, cancelling the timer when the corresponding CPU goes offline.

       mod_timer_pinned(timer, expires) is equivalent to:

       del_timer(timer); timer->expires = expires; add_timer(timer);

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						       MOD_TIMER_PINNED(9)