taglinefilesource code
tickadj214include/linux/timex.hextern int tickadj;      /* amount of adjustment per tick */
tickadj42kernel/sched.cint tickadj = 500/HZ;      /* microsecs */
tickadj767kernel/sched.cif (time_adjust > tickadj)
tickadj768kernel/sched.ctime_adjust_step = tickadj;
tickadj769kernel/sched.celse if (time_adjust < -tickadj)
tickadj770kernel/sched.ctime_adjust_step = -tickadj;