sys_tkill(9) centos man page | unix.com

SYS_TKILL(9)							   Driver Basics						      SYS_TKILL(9)

NAME
       sys_tkill - send signal to one specific task

SYNOPSIS
       long sys_tkill(pid_t pid, int sig);

ARGUMENTS
       pid
	   the PID of the task

       sig
	   signal to be sent

DESCRIPTION
       Send a signal to only one task, even if it's a CLONE_THREAD task.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							      SYS_TKILL(9)