suse man page for work_on_cpu

WORK_ON_CPU(9)							   Driver Basics						    WORK_ON_CPU(9)

NAME
       work_on_cpu - run a function in user context on a particular cpu

SYNOPSIS
       long work_on_cpu(unsigned int cpu, long (*fn) (void *), void * arg);

ARGUMENTS
       cpu
	   the cpu to run on

       fn
	   the function to run

       arg
	   the function arg

DESCRIPTION
       This will return the value fn returns. It is up to the caller to ensure that the cpu doesn't go offline. The caller must not hold any locks
       which would prevent fn from completing.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010							    WORK_ON_CPU(9)