__round_jiffies_up(9) centos man page | unix.com

__ROUND_JIFFIES_UP(9)						   Driver Basics					     __ROUND_JIFFIES_UP(9)

NAME
       __round_jiffies_up - function to round jiffies up to a full second

SYNOPSIS
       unsigned long __round_jiffies_up(unsigned long j, int cpu);

ARGUMENTS
       j
	   the time in (absolute) jiffies that should be rounded

       cpu
	   the processor number on which the timeout will happen

DESCRIPTION
       This is the same as __round_jiffies except that it will never round down. This is useful for timeouts for which the exact time of firing
       does not matter too much, as long as they don't fire too early.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     __ROUND_JIFFIES_UP(9)