| Current Path : /usr/src/sys/kern/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sys/kern/kern_racct.c |
/*-
* Copyright (c) 2010 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Edward Tomasz Napierala under sponsorship
* from the FreeBSD Foundation.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD: release/9.1.0/sys/kern/kern_racct.c 236253 2012-05-29 19:47:06Z trasz $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/kern/kern_racct.c 236253 2012-05-29 19:47:06Z trasz $");
#include "opt_kdtrace.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/eventhandler.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/lock.h>
#include <sys/loginclass.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sbuf.h>
#include <sys/sched.h>
#include <sys/sdt.h>
#include <sys/sx.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/umtx.h>
#ifdef RCTL
#include <sys/rctl.h>
#endif
#ifdef RACCT
FEATURE(racct, "Resource Accounting");
static struct mtx racct_lock;
MTX_SYSINIT(racct_lock, &racct_lock, "racct lock", MTX_DEF);
static uma_zone_t racct_zone;
static void racct_sub_racct(struct racct *dest, const struct racct *src);
static void racct_sub_cred_locked(struct ucred *cred, int resource,
uint64_t amount);
static void racct_add_cred_locked(struct ucred *cred, int resource,
uint64_t amount);
SDT_PROVIDER_DEFINE(racct);
SDT_PROBE_DEFINE3(racct, kernel, rusage, add, add, "struct proc *", "int",
"uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, add_failure, add-failure,
"struct proc *", "int", "uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, add_cred, add-cred, "struct ucred *",
"int", "uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, add_force, add-force, "struct proc *",
"int", "uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, set, set, "struct proc *", "int",
"uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, set_failure, set-failure,
"struct proc *", "int", "uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, sub, sub, "struct proc *", "int",
"uint64_t");
SDT_PROBE_DEFINE3(racct, kernel, rusage, sub_cred, sub-cred, "struct ucred *",
"int", "uint64_t");
SDT_PROBE_DEFINE1(racct, kernel, racct, create, create, "struct racct *");
SDT_PROBE_DEFINE1(racct, kernel, racct, destroy, destroy, "struct racct *");
SDT_PROBE_DEFINE2(racct, kernel, racct, join, join, "struct racct *",
"struct racct *");
SDT_PROBE_DEFINE2(racct, kernel, racct, join_failure, join-failure,
"struct racct *", "struct racct *");
SDT_PROBE_DEFINE2(racct, kernel, racct, leave, leave, "struct racct *",
"struct racct *");
int racct_types[] = {
[RACCT_CPU] =
RACCT_IN_MILLIONS,
[RACCT_DATA] =
RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE,
[RACCT_STACK] =
RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE,
[RACCT_CORE] =
RACCT_DENIABLE,
[RACCT_RSS] =
RACCT_RECLAIMABLE,
[RACCT_MEMLOCK] =
RACCT_RECLAIMABLE | RACCT_DENIABLE,
[RACCT_NPROC] =
RACCT_RECLAIMABLE | RACCT_DENIABLE,
[RACCT_NOFILE] =
RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE,
[RACCT_VMEM] =
RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE,
[RACCT_NPTS] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_SWAP] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_NTHR] =
RACCT_RECLAIMABLE | RACCT_DENIABLE,
[RACCT_MSGQQUEUED] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_MSGQSIZE] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_NMSGQ] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_NSEM] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_NSEMOP] =
RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE,
[RACCT_NSHM] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_SHMSIZE] =
RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY,
[RACCT_WALLCLOCK] =
RACCT_IN_MILLIONS };
static void
racct_add_racct(struct racct *dest, const struct racct *src)
{
int i;
mtx_assert(&racct_lock, MA_OWNED);
/*
* Update resource usage in dest.
*/
for (i = 0; i <= RACCT_MAX; i++) {
KASSERT(dest->r_resources[i] >= 0,
("racct propagation meltdown: dest < 0"));
KASSERT(src->r_resources[i] >= 0,
("racct propagation meltdown: src < 0"));
dest->r_resources[i] += src->r_resources[i];
}
}
static void
racct_sub_racct(struct racct *dest, const struct racct *src)
{
int i;
mtx_assert(&racct_lock, MA_OWNED);
/*
* Update resource usage in dest.
*/
for (i = 0; i <= RACCT_MAX; i++) {
if (!RACCT_IS_SLOPPY(i)) {
KASSERT(dest->r_resources[i] >= 0,
("racct propagation meltdown: dest < 0"));
KASSERT(src->r_resources[i] >= 0,
("racct propagation meltdown: src < 0"));
KASSERT(src->r_resources[i] <= dest->r_resources[i],
("racct propagation meltdown: src > dest"));
}
if (RACCT_IS_RECLAIMABLE(i)) {
dest->r_resources[i] -= src->r_resources[i];
if (dest->r_resources[i] < 0) {
KASSERT(RACCT_IS_SLOPPY(i),
("racct_sub_racct: usage < 0"));
dest->r_resources[i] = 0;
}
}
}
}
void
racct_create(struct racct **racctp)
{
SDT_PROBE(racct, kernel, racct, create, racctp, 0, 0, 0, 0);
KASSERT(*racctp == NULL, ("racct already allocated"));
*racctp = uma_zalloc(racct_zone, M_WAITOK | M_ZERO);
}
static void
racct_destroy_locked(struct racct **racctp)
{
int i;
struct racct *racct;
SDT_PROBE(racct, kernel, racct, destroy, racctp, 0, 0, 0, 0);
mtx_assert(&racct_lock, MA_OWNED);
KASSERT(racctp != NULL, ("NULL racctp"));
KASSERT(*racctp != NULL, ("NULL racct"));
racct = *racctp;
for (i = 0; i <= RACCT_MAX; i++) {
if (RACCT_IS_SLOPPY(i))
continue;
if (!RACCT_IS_RECLAIMABLE(i))
continue;
KASSERT(racct->r_resources[i] == 0,
("destroying non-empty racct: "
"%ju allocated for resource %d\n",
racct->r_resources[i], i));
}
uma_zfree(racct_zone, racct);
*racctp = NULL;
}
void
racct_destroy(struct racct **racct)
{
mtx_lock(&racct_lock);
racct_destroy_locked(racct);
mtx_unlock(&racct_lock);
}
/*
* Increase consumption of 'resource' by 'amount' for 'racct'
* and all its parents. Differently from other cases, 'amount' here
* may be less than zero.
*/
static void
racct_alloc_resource(struct racct *racct, int resource,
uint64_t amount)
{
mtx_assert(&racct_lock, MA_OWNED);
KASSERT(racct != NULL, ("NULL racct"));
racct->r_resources[resource] += amount;
if (racct->r_resources[resource] < 0) {
KASSERT(RACCT_IS_SLOPPY(resource),
("racct_alloc_resource: usage < 0"));
racct->r_resources[resource] = 0;
}
}
static int
racct_add_locked(struct proc *p, int resource, uint64_t amount)
{
#ifdef RCTL
int error;
#endif
SDT_PROBE(racct, kernel, rusage, add, p, resource, amount, 0, 0);
/*
* We need proc lock to dereference p->p_ucred.
*/
PROC_LOCK_ASSERT(p, MA_OWNED);
#ifdef RCTL
error = rctl_enforce(p, resource, amount);
if (error && RACCT_IS_DENIABLE(resource)) {
SDT_PROBE(racct, kernel, rusage, add_failure, p, resource,
amount, 0, 0);
return (error);
}
#endif
racct_alloc_resource(p->p_racct, resource, amount);
racct_add_cred_locked(p->p_ucred, resource, amount);
return (0);
}
/*
* Increase allocation of 'resource' by 'amount' for process 'p'.
* Return 0 if it's below limits, or errno, if it's not.
*/
int
racct_add(struct proc *p, int resource, uint64_t amount)
{
int error;
mtx_lock(&racct_lock);
error = racct_add_locked(p, resource, amount);
mtx_unlock(&racct_lock);
return (error);
}
static void
racct_add_cred_locked(struct ucred *cred, int resource, uint64_t amount)
{
struct prison *pr;
SDT_PROBE(racct, kernel, rusage, add_cred, cred, resource, amount,
0, 0);
racct_alloc_resource(cred->cr_ruidinfo->ui_racct, resource, amount);
for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent)
racct_alloc_resource(pr->pr_prison_racct->prr_racct, resource,
amount);
racct_alloc_resource(cred->cr_loginclass->lc_racct, resource, amount);
}
/*
* Increase allocation of 'resource' by 'amount' for credential 'cred'.
* Doesn't check for limits and never fails.
*
* XXX: Shouldn't this ever return an error?
*/
void
racct_add_cred(struct ucred *cred, int resource, uint64_t amount)
{
mtx_lock(&racct_lock);
racct_add_cred_locked(cred, resource, amount);
mtx_unlock(&racct_lock);
}
/*
* Increase allocation of 'resource' by 'amount' for process 'p'.
* Doesn't check for limits and never fails.
*/
void
racct_add_force(struct proc *p, int resource, uint64_t amount)
{
SDT_PROBE(racct, kernel, rusage, add_force, p, resource, amount, 0, 0);
/*
* We need proc lock to dereference p->p_ucred.
*/
PROC_LOCK_ASSERT(p, MA_OWNED);
mtx_lock(&racct_lock);
racct_alloc_resource(p->p_racct, resource, amount);
mtx_unlock(&racct_lock);
racct_add_cred(p->p_ucred, resource, amount);
}
static int
racct_set_locked(struct proc *p, int resource, uint64_t amount)
{
int64_t diff;
#ifdef RCTL
int error;
#endif
SDT_PROBE(racct, kernel, rusage, set, p, resource, amount, 0, 0);
/*
* We need proc lock to dereference p->p_ucred.
*/
PROC_LOCK_ASSERT(p, MA_OWNED);
diff = amount - p->p_racct->r_resources[resource];
#ifdef notyet
KASSERT(diff >= 0 || RACCT_IS_RECLAIMABLE(resource),
("racct_set: usage of non-reclaimable resource %d dropping",
resource));
#endif
#ifdef RCTL
if (diff > 0) {
error = rctl_enforce(p, resource, diff);
if (error && RACCT_IS_DENIABLE(resource)) {
SDT_PROBE(racct, kernel, rusage, set_failure, p,
resource, amount, 0, 0);
return (error);
}
}
#endif
racct_alloc_resource(p->p_racct, resource, diff);
if (diff > 0)
racct_add_cred_locked(p->p_ucred, resource, diff);
else if (diff < 0)
racct_sub_cred_locked(p->p_ucred, resource, -diff);
return (0);
}
/*
* Set allocation of 'resource' to 'amount' for process 'p'.
* Return 0 if it's below limits, or errno, if it's not.
*
* Note that decreasing the allocation always returns 0,
* even if it's above the limit.
*/
int
racct_set(struct proc *p, int resource, uint64_t amount)
{
int error;
mtx_lock(&racct_lock);
error = racct_set_locked(p, resource, amount);
mtx_unlock(&racct_lock);
return (error);
}
void
racct_set_force(struct proc *p, int resource, uint64_t amount)
{
int64_t diff;
SDT_PROBE(racct, kernel, rusage, set, p, resource, amount, 0, 0);
/*
* We need proc lock to dereference p->p_ucred.
*/
PROC_LOCK_ASSERT(p, MA_OWNED);
mtx_lock(&racct_lock);
diff = amount - p->p_racct->r_resources[resource];
racct_alloc_resource(p->p_racct, resource, diff);
if (diff > 0)
racct_add_cred_locked(p->p_ucred, resource, diff);
else if (diff < 0)
racct_sub_cred_locked(p->p_ucred, resource, -diff);
mtx_unlock(&racct_lock);
}
/*
* Returns amount of 'resource' the process 'p' can keep allocated.
* Allocating more than that would be denied, unless the resource
* is marked undeniable. Amount of already allocated resource does
* not matter.
*/
uint64_t
racct_get_limit(struct proc *p, int resource)
{
#ifdef RCTL
return (rctl_get_limit(p, resource));
#else
return (UINT64_MAX);
#endif
}
/*
* Returns amount of 'resource' the process 'p' can keep allocated.
* Allocating more than that would be denied, unless the resource
* is marked undeniable. Amount of already allocated resource does
* matter.
*/
uint64_t
racct_get_available(struct proc *p, int resource)
{
#ifdef RCTL
return (rctl_get_available(p, resource));
#else
return (UINT64_MAX);
#endif
}
/*
* Decrease allocation of 'resource' by 'amount' for process 'p'.
*/
void
racct_sub(struct proc *p, int resource, uint64_t amount)
{
SDT_PROBE(racct, kernel, rusage, sub, p, resource, amount, 0, 0);
/*
* We need proc lock to dereference p->p_ucred.
*/
PROC_LOCK_ASSERT(p, MA_OWNED);
KASSERT(RACCT_IS_RECLAIMABLE(resource),
("racct_sub: called for non-reclaimable resource %d", resource));
mtx_lock(&racct_lock);
KASSERT(amount <= p->p_racct->r_resources[resource],
("racct_sub: freeing %ju of resource %d, which is more "
"than allocated %jd for %s (pid %d)", amount, resource,
(intmax_t)p->p_racct->r_resources[resource], p->p_comm, p->p_pid));
racct_alloc_resource(p->p_racct, resource, -amount);
racct_sub_cred_locked(p->p_ucred, resource, amount);
mtx_unlock(&racct_lock);
}
static void
racct_sub_cred_locked(struct ucred *cred, int resource, uint64_t amount)
{
struct prison *pr;
SDT_PROBE(racct, kernel, rusage, sub_cred, cred, resource, amount,
0, 0);
#ifdef notyet
KASSERT(RACCT_IS_RECLAIMABLE(resource),
("racct_sub_cred: called for non-reclaimable resource %d",
resource));
#endif
racct_alloc_resource(cred->cr_ruidinfo->ui_racct, resource, -amount);
for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent)
racct_alloc_resource(pr->pr_prison_racct->prr_racct, resource,
-amount);
racct_alloc_resource(cred->cr_loginclass->lc_racct, resource, -amount);
}
/*
* Decrease allocation of 'resource' by 'amount' for credential 'cred'.
*/
void
racct_sub_cred(struct ucred *cred, int resource, uint64_t amount)
{
mtx_lock(&racct_lock);
racct_sub_cred_locked(cred, resource, amount);
mtx_unlock(&racct_lock);
}
/*
* Inherit resource usage information from the parent process.
*/
int
racct_proc_fork(struct proc *parent, struct proc *child)
{
int i, error = 0;
/*
* Create racct for the child process.
*/
racct_create(&child->p_racct);
PROC_LOCK(parent);
PROC_LOCK(child);
mtx_lock(&racct_lock);
#ifdef RCTL
error = rctl_proc_fork(parent, child);
if (error != 0)
goto out;
#endif
/*
* Inherit resource usage.
*/
for (i = 0; i <= RACCT_MAX; i++) {
if (parent->p_racct->r_resources[i] == 0 ||
!RACCT_IS_INHERITABLE(i))
continue;
error = racct_set_locked(child, i,
parent->p_racct->r_resources[i]);
if (error != 0)
goto out;
}
error = racct_add_locked(child, RACCT_NPROC, 1);
error += racct_add_locked(child, RACCT_NTHR, 1);
out:
mtx_unlock(&racct_lock);
PROC_UNLOCK(child);
PROC_UNLOCK(parent);
if (error != 0)
racct_proc_exit(child);
return (error);
}
/*
* Called at the end of fork1(), to handle rules that require the process
* to be fully initialized.
*/
void
racct_proc_fork_done(struct proc *child)
{
#ifdef RCTL
PROC_LOCK(child);
mtx_lock(&racct_lock);
rctl_enforce(child, RACCT_NPROC, 0);
rctl_enforce(child, RACCT_NTHR, 0);
mtx_unlock(&racct_lock);
PROC_UNLOCK(child);
#endif
}
void
racct_proc_exit(struct proc *p)
{
int i;
uint64_t runtime;
PROC_LOCK(p);
/*
* We don't need to calculate rux, proc_reap() has already done this.
*/
runtime = cputick2usec(p->p_rux.rux_runtime);
#ifdef notyet
KASSERT(runtime >= p->p_prev_runtime, ("runtime < p_prev_runtime"));
#else
if (runtime < p->p_prev_runtime)
runtime = p->p_prev_runtime;
#endif
mtx_lock(&racct_lock);
racct_set_locked(p, RACCT_CPU, runtime);
for (i = 0; i <= RACCT_MAX; i++) {
if (p->p_racct->r_resources[i] == 0)
continue;
if (!RACCT_IS_RECLAIMABLE(i))
continue;
racct_set_locked(p, i, 0);
}
mtx_unlock(&racct_lock);
PROC_UNLOCK(p);
#ifdef RCTL
rctl_racct_release(p->p_racct);
#endif
racct_destroy(&p->p_racct);
}
/*
* Called after credentials change, to move resource utilisation
* between raccts.
*/
void
racct_proc_ucred_changed(struct proc *p, struct ucred *oldcred,
struct ucred *newcred)
{
struct uidinfo *olduip, *newuip;
struct loginclass *oldlc, *newlc;
struct prison *oldpr, *newpr, *pr;
PROC_LOCK_ASSERT(p, MA_NOTOWNED);
newuip = newcred->cr_ruidinfo;
olduip = oldcred->cr_ruidinfo;
newlc = newcred->cr_loginclass;
oldlc = oldcred->cr_loginclass;
newpr = newcred->cr_prison;
oldpr = oldcred->cr_prison;
mtx_lock(&racct_lock);
if (newuip != olduip) {
racct_sub_racct(olduip->ui_racct, p->p_racct);
racct_add_racct(newuip->ui_racct, p->p_racct);
}
if (newlc != oldlc) {
racct_sub_racct(oldlc->lc_racct, p->p_racct);
racct_add_racct(newlc->lc_racct, p->p_racct);
}
if (newpr != oldpr) {
for (pr = oldpr; pr != NULL; pr = pr->pr_parent)
racct_sub_racct(pr->pr_prison_racct->prr_racct,
p->p_racct);
for (pr = newpr; pr != NULL; pr = pr->pr_parent)
racct_add_racct(pr->pr_prison_racct->prr_racct,
p->p_racct);
}
mtx_unlock(&racct_lock);
#ifdef RCTL
rctl_proc_ucred_changed(p, newcred);
#endif
}
void
racct_move(struct racct *dest, struct racct *src)
{
mtx_lock(&racct_lock);
racct_add_racct(dest, src);
racct_sub_racct(src, src);
mtx_unlock(&racct_lock);
}
static void
racctd(void)
{
struct thread *td;
struct proc *p;
struct timeval wallclock;
uint64_t runtime;
for (;;) {
sx_slock(&allproc_lock);
FOREACH_PROC_IN_SYSTEM(p) {
if (p->p_state != PRS_NORMAL)
continue;
microuptime(&wallclock);
timevalsub(&wallclock, &p->p_stats->p_start);
PROC_LOCK(p);
PROC_SLOCK(p);
FOREACH_THREAD_IN_PROC(p, td)
ruxagg(p, td);
runtime = cputick2usec(p->p_rux.rux_runtime);
PROC_SUNLOCK(p);
#ifdef notyet
KASSERT(runtime >= p->p_prev_runtime,
("runtime < p_prev_runtime"));
#else
if (runtime < p->p_prev_runtime)
runtime = p->p_prev_runtime;
#endif
p->p_prev_runtime = runtime;
mtx_lock(&racct_lock);
racct_set_locked(p, RACCT_CPU, runtime);
racct_set_locked(p, RACCT_WALLCLOCK,
(uint64_t)wallclock.tv_sec * 1000000 +
wallclock.tv_usec);
mtx_unlock(&racct_lock);
PROC_UNLOCK(p);
}
sx_sunlock(&allproc_lock);
pause("-", hz);
}
}
static struct kproc_desc racctd_kp = {
"racctd",
racctd,
NULL
};
SYSINIT(racctd, SI_SUB_RACCTD, SI_ORDER_FIRST, kproc_start, &racctd_kp);
static void
racct_init(void)
{
racct_zone = uma_zcreate("racct", sizeof(struct racct),
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
/*
* XXX: Move this somewhere.
*/
prison0.pr_prison_racct = prison_racct_find("0");
}
SYSINIT(racct, SI_SUB_RACCT, SI_ORDER_FIRST, racct_init, NULL);
#else /* !RACCT */
int
racct_add(struct proc *p, int resource, uint64_t amount)
{
return (0);
}
void
racct_add_cred(struct ucred *cred, int resource, uint64_t amount)
{
}
void
racct_add_force(struct proc *p, int resource, uint64_t amount)
{
return;
}
int
racct_set(struct proc *p, int resource, uint64_t amount)
{
return (0);
}
void
racct_set_force(struct proc *p, int resource, uint64_t amount)
{
}
void
racct_sub(struct proc *p, int resource, uint64_t amount)
{
}
void
racct_sub_cred(struct ucred *cred, int resource, uint64_t amount)
{
}
uint64_t
racct_get_limit(struct proc *p, int resource)
{
return (UINT64_MAX);
}
uint64_t
racct_get_available(struct proc *p, int resource)
{
return (UINT64_MAX);
}
void
racct_create(struct racct **racctp)
{
}
void
racct_destroy(struct racct **racctp)
{
}
int
racct_proc_fork(struct proc *parent, struct proc *child)
{
return (0);
}
void
racct_proc_fork_done(struct proc *child)
{
}
void
racct_proc_exit(struct proc *p)
{
}
#endif /* !RACCT */