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)
