Set the allowed slack for a timer
void set_timer_slack(struct timer_list * timer, int slack_hz);
timer
the timer to be modified
slack_hz
the amount of time (in jiffies) allowed for rounding
Set the amount of time, in jiffies, that a certain timer has in terms of slack. By setting this value, the timer subsystem will schedule the actual timer somewhere between the time mod_timer asks for, and that time plus the slack.
By setting the slack to -1, a percentage of the delay is used instead.