8a031a1d1e
module hook, we can share a common set of synchronization structures. This cuts the amount of cacheline_aligned data for these structures by 50%. Note that we still have a per-hook localcount, since we need to count individual references. As discussed with riastradh@ Welcome to 9.99.22 !
142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/* $NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Emmanuel Dreyfus.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $");
|
|
|
|
#if defined(_KERNEL_OPT)
|
|
#include "opt_compat_netbsd.h"
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/device.h>
|
|
#include <sys/time.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/timex.h>
|
|
#include <sys/kauth.h>
|
|
#include <sys/module.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/compat_stub.h>
|
|
|
|
#include <sys/clockctl.h>
|
|
#include <compat/sys/clockctl.h>
|
|
#include <compat/sys/time_types.h>
|
|
|
|
int
|
|
compat50_clockctlioctl(dev_t dev, u_long cmd, void *data, int flags,
|
|
struct lwp *l)
|
|
{
|
|
int error = 0;
|
|
const struct cdevsw *cd = cdevsw_lookup(dev);
|
|
|
|
if (cd == NULL || cd->d_ioctl == NULL)
|
|
return ENXIO;
|
|
|
|
switch (cmd) {
|
|
case CLOCKCTL_OSETTIMEOFDAY: {
|
|
struct timeval50 tv50;
|
|
struct timeval tv;
|
|
struct clockctl50_settimeofday *args = data;
|
|
|
|
error = copyin(args->tv, &tv50, sizeof(tv50));
|
|
if (error)
|
|
return (error);
|
|
timeval50_to_timeval(&tv50, &tv);
|
|
error = settimeofday1(&tv, false, args->tzp, l, false);
|
|
break;
|
|
}
|
|
case CLOCKCTL_OADJTIME: {
|
|
struct timeval atv, oldatv;
|
|
struct timeval50 atv50;
|
|
struct clockctl50_adjtime *args = data;
|
|
|
|
if (args->delta) {
|
|
error = copyin(args->delta, &atv50, sizeof(atv50));
|
|
if (error)
|
|
return (error);
|
|
timeval50_to_timeval(&atv50, &atv);
|
|
}
|
|
adjtime1(args->delta ? &atv : NULL,
|
|
args->olddelta ? &oldatv : NULL, l->l_proc);
|
|
if (args->olddelta) {
|
|
timeval_to_timeval50(&oldatv, &atv50);
|
|
error = copyout(&atv50, args->olddelta, sizeof(atv50));
|
|
}
|
|
break;
|
|
}
|
|
case CLOCKCTL_OCLOCK_SETTIME: {
|
|
struct timespec50 tp50;
|
|
struct timespec tp;
|
|
struct clockctl50_clock_settime *args = data;
|
|
|
|
error = copyin(args->tp, &tp50, sizeof(tp50));
|
|
if (error)
|
|
return (error);
|
|
timespec50_to_timespec(&tp50, &tp);
|
|
error = clock_settime1(l->l_proc, args->clock_id, &tp, true);
|
|
break;
|
|
}
|
|
case CLOCKCTL_ONTP_ADJTIME: {
|
|
if (vec_ntp_timestatus == NULL) {
|
|
error = ENOTTY;
|
|
break;
|
|
}
|
|
/* The ioctl number changed but the data did not change. */
|
|
error = (cd->d_ioctl)(dev, CLOCKCTL_NTP_ADJTIME,
|
|
data, flags, l);
|
|
break;
|
|
}
|
|
default:
|
|
error = ENOTTY;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
void
|
|
clockctl_50_init(void)
|
|
{
|
|
|
|
MODULE_HOOK_SET(clockctl_ioctl_50_hook, compat50_clockctlioctl);
|
|
}
|
|
|
|
void
|
|
clockctl_50_fini(void)
|
|
{
|
|
|
|
MODULE_HOOK_UNSET(clockctl_ioctl_50_hook);
|
|
}
|