| kern_tc.c (210225) | kern_tc.c (210226) |
|---|---|
| 1/*- 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 */ 9 10#include <sys/cdefs.h> | 1/*- 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 */ 9 10#include <sys/cdefs.h> |
| 11__FBSDID("$FreeBSD: head/sys/kern/kern_tc.c 210225 2010-07-18 20:23:10Z trasz $"); | 11__FBSDID("$FreeBSD: head/sys/kern/kern_tc.c 210226 2010-07-18 20:57:53Z trasz $"); |
| 12 13#include "opt_ntp.h" 14 15#include <sys/param.h> 16#include <sys/kernel.h> 17#include <sys/sysctl.h> 18#include <sys/syslog.h> 19#include <sys/systm.h> --- 459 unchanged lines hidden (view full) --- 479 bintime2timespec(&bt, &th->th_nanotime); 480 481 /* Now is a good time to change timecounters. */ 482 if (th->th_counter != timecounter) { 483 th->th_counter = timecounter; 484 th->th_offset_count = ncount; 485 } 486 | 12 13#include "opt_ntp.h" 14 15#include <sys/param.h> 16#include <sys/kernel.h> 17#include <sys/sysctl.h> 18#include <sys/syslog.h> 19#include <sys/systm.h> --- 459 unchanged lines hidden (view full) --- 479 bintime2timespec(&bt, &th->th_nanotime); 480 481 /* Now is a good time to change timecounters. */ 482 if (th->th_counter != timecounter) { 483 th->th_counter = timecounter; 484 th->th_offset_count = ncount; 485 } 486 |
| 487 /* | 487 /*- |
| 488 * Recalculate the scaling factor. We want the number of 1/2^64 489 * fractions of a second per period of the hardware counter, taking 490 * into account the th_adjustment factor which the NTP PLL/adjtime(2) 491 * processing provides us with. 492 * 493 * The th_adjustment is nanoseconds per second with 32 bit binary 494 * fraction and we want 64 bit binary fraction of second: 495 * --- 437 unchanged lines hidden --- | 488 * Recalculate the scaling factor. We want the number of 1/2^64 489 * fractions of a second per period of the hardware counter, taking 490 * into account the th_adjustment factor which the NTP PLL/adjtime(2) 491 * processing provides us with. 492 * 493 * The th_adjustment is nanoseconds per second with 32 bit binary 494 * fraction and we want 64 bit binary fraction of second: 495 * --- 437 unchanged lines hidden --- |