kernel.c revision d20e665c84abf083a9e8b62cca93383ecb55afdf
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
5679c89fcd2facbb4334df8870d3d7a4d2b11673jv * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Use is subject to license terms.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <assert.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <fcntl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <poll.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdio.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdlib.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <string.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <zlib.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/spa.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <sys/stat.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/processor.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <sys/zfs_context.h>
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl#include <sys/zmod.h>
95173954d2b811ceb583a9012c3b16e1d0dd6438ek#include <sys/utsname.h>
5679c89fcd2facbb4334df8870d3d7a4d2b11673jv#include <sys/systeminfo.h>
5ad820458efd0fdb914baff9c1447c22b819fa23nd
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Emulation of kernel services in userland.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensuint64_t physmem;
fa9e4066f08beec538e775443c5be79dd423fcabahrensvnode_t *rootdir = (vnode_t *)0xabcd1234;
5679c89fcd2facbb4334df8870d3d7a4d2b11673jvchar hw_serial[HW_HOSTID_LEN];
95173954d2b811ceb583a9012c3b16e1d0dd6438ek
95173954d2b811ceb583a9012c3b16e1d0dd6438ekstruct utsname utsname = {
95173954d2b811ceb583a9012c3b16e1d0dd6438ek "userland", "libzpool", "1", "1", "na"
95173954d2b811ceb583a9012c3b16e1d0dd6438ek};
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * threads
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrenskthread_t *
fa9e4066f08beec538e775443c5be79dd423fcabahrenszk_thread_create(void (*func)(), void *arg)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens thread_t tid;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(thr_create(0, 0, (void *(*)(void *))func, arg, THR_DETACHED,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &tid) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return ((void *)(uintptr_t)tid);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
44cb6abc89aa591c23f5e58296c6d2a29302344abmc/*
44cb6abc89aa591c23f5e58296c6d2a29302344abmc * =========================================================================
44cb6abc89aa591c23f5e58296c6d2a29302344abmc * kstats
44cb6abc89aa591c23f5e58296c6d2a29302344abmc * =========================================================================
44cb6abc89aa591c23f5e58296c6d2a29302344abmc */
44cb6abc89aa591c23f5e58296c6d2a29302344abmc/*ARGSUSED*/
44cb6abc89aa591c23f5e58296c6d2a29302344abmckstat_t *
44cb6abc89aa591c23f5e58296c6d2a29302344abmckstat_create(char *module, int instance, char *name, char *class,
44cb6abc89aa591c23f5e58296c6d2a29302344abmc uchar_t type, ulong_t ndata, uchar_t ks_flag)
44cb6abc89aa591c23f5e58296c6d2a29302344abmc{
44cb6abc89aa591c23f5e58296c6d2a29302344abmc return (NULL);
44cb6abc89aa591c23f5e58296c6d2a29302344abmc}
44cb6abc89aa591c23f5e58296c6d2a29302344abmc
44cb6abc89aa591c23f5e58296c6d2a29302344abmc/*ARGSUSED*/
44cb6abc89aa591c23f5e58296c6d2a29302344abmcvoid
44cb6abc89aa591c23f5e58296c6d2a29302344abmckstat_install(kstat_t *ksp)
44cb6abc89aa591c23f5e58296c6d2a29302344abmc{}
44cb6abc89aa591c23f5e58296c6d2a29302344abmc
44cb6abc89aa591c23f5e58296c6d2a29302344abmc/*ARGSUSED*/
44cb6abc89aa591c23f5e58296c6d2a29302344abmcvoid
44cb6abc89aa591c23f5e58296c6d2a29302344abmckstat_delete(kstat_t *ksp)
44cb6abc89aa591c23f5e58296c6d2a29302344abmc{}
44cb6abc89aa591c23f5e58296c6d2a29302344abmc
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * mutexes
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenszmutex_init(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = NULL;
c25056de36a33f2a76f79dcf64593f731d258013gw mp->initialized = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) _mutex_init(&mp->m_lock, USYNC_THREAD, NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenszmutex_destroy(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(mp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner == NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) _mutex_destroy(&(mp)->m_lock);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = (void *)-1UL;
c25056de36a33f2a76f79dcf64593f731d258013gw mp->initialized = B_FALSE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensmutex_enter(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(mp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner != curthread);
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(mutex_lock(&mp->m_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner == NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensmutex_tryenter(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(mp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (0 == mutex_trylock(&mp->m_lock)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mp->m_owner == NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensmutex_exit(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(mp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mutex_owner(mp) == curthread);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = NULL;
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(mutex_unlock(&mp->m_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid *
fa9e4066f08beec538e775443c5be79dd423fcabahrensmutex_owner(kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(mp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (mp->m_owner);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * rwlocks
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_init(krwlock_t *rwlp, char *name, int type, void *arg)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlock_init(&rwlp->rw_lock, USYNC_THREAD, NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlp->rw_owner = NULL;
c25056de36a33f2a76f79dcf64593f731d258013gw rwlp->initialized = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_destroy(krwlock_t *rwlp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlock_destroy(&rwlp->rw_lock);
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlp->rw_owner = (void *)-1UL;
c25056de36a33f2a76f79dcf64593f731d258013gw rwlp->initialized = B_FALSE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_enter(krwlock_t *rwlp, krw_t rw)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(!RW_LOCK_HELD(rwlp));
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(rwlp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(rwlp->rw_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(rwlp->rw_owner != curthread);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (rw == RW_READER)
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee VERIFY(rw_rdlock(&rwlp->rw_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee VERIFY(rw_wrlock(&rwlp->rw_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlp->rw_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_exit(krwlock_t *rwlp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(rwlp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(rwlp->rw_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlp->rw_owner = NULL;
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee VERIFY(rw_unlock(&rwlp->rw_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_tryenter(krwlock_t *rwlp, krw_t rw)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens int rv;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(rwlp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(rwlp->rw_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (rw == RW_READER)
fa9e4066f08beec538e775443c5be79dd423fcabahrens rv = rw_tryrdlock(&rwlp->rw_lock);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens rv = rw_trywrlock(&rwlp->rw_lock);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (rv == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens rwlp->rw_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensrw_tryupgrade(krwlock_t *rwlp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
c25056de36a33f2a76f79dcf64593f731d258013gw ASSERT(rwlp->initialized == B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(rwlp->rw_owner != (void *)-1UL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * condition variables
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_init(kcondvar_t *cv, char *name, int type, void *arg)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(cond_init(cv, type, NULL) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_destroy(kcondvar_t *cv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(cond_destroy(cv) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_wait(kcondvar_t *cv, kmutex_t *mp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mutex_owner(mp) == curthread);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = NULL;
5ad820458efd0fdb914baff9c1447c22b819fa23nd int ret = cond_wait(cv, &mp->m_lock);
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(ret == 0 || ret == EINTR);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensclock_t
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens int error;
fa9e4066f08beec538e775443c5be79dd423fcabahrens timestruc_t ts;
fa9e4066f08beec538e775443c5be79dd423fcabahrens clock_t delta;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrenstop:
fa9e4066f08beec538e775443c5be79dd423fcabahrens delta = abstime - lbolt;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (delta <= 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ts.tv_sec = delta / hz;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ts.tv_nsec = (delta % hz) * (NANOSEC / hz);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(mutex_owner(mp) == curthread);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens error = cond_reltimedwait(cv, &mp->m_lock, &ts);
fa9e4066f08beec538e775443c5be79dd423fcabahrens mp->m_owner = curthread;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (error == ETIME)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (error == EINTR)
fa9e4066f08beec538e775443c5be79dd423fcabahrens goto top;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(error == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_signal(kcondvar_t *cv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(cond_signal(cv) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenscv_broadcast(kcondvar_t *cv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
5ad820458efd0fdb914baff9c1447c22b819fa23nd VERIFY(cond_broadcast(cv) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vnode operations
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Note: for the xxxat() versions of these functions, we assume that the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * starting vp is always rootdir (which is true for spa_directory.c, the only
fa9e4066f08beec538e775443c5be79dd423fcabahrens * ZFS consumer of these interfaces). We assert this is true, and then emulate
fa9e4066f08beec538e775443c5be79dd423fcabahrens * them by adding '/' in front of the path.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensvn_open(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, int x3)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens int fd;
fa9e4066f08beec538e775443c5be79dd423fcabahrens vnode_t *vp;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int old_umask;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char realpath[MAXPATHLEN];
fa9e4066f08beec538e775443c5be79dd423fcabahrens struct stat64 st;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If we're accessing a real disk from userland, we need to use
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the character interface to avoid caching. This is particularly
fa9e4066f08beec538e775443c5be79dd423fcabahrens * important if we're trying to look at a real in-kernel storage
fa9e4066f08beec538e775443c5be79dd423fcabahrens * pool from userland, e.g. via zdb, because otherwise we won't
fa9e4066f08beec538e775443c5be79dd423fcabahrens * see the changes occurring under the segmap cache.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * On the other hand, the stupid character device returns zero
fa9e4066f08beec538e775443c5be79dd423fcabahrens * for its size. So -- gag -- we open the block device to get
fa9e4066f08beec538e775443c5be79dd423fcabahrens * its size, and remember it for subsequent VOP_GETATTR().
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strncmp(path, "/dev/", 5) == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *dsk;
fa9e4066f08beec538e775443c5be79dd423fcabahrens fd = open64(path, O_RDONLY);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fd == -1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fstat64(fd, &st) == -1) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(realpath, "%s", path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens dsk = strstr(path, "/dsk/");
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dsk != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(realpath + (dsk - path) + 1, "r%s",
fa9e4066f08beec538e775443c5be79dd423fcabahrens dsk + 1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(realpath, "%s", path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!(flags & FCREAT) && stat64(realpath, &st) == -1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (flags & FCREAT)
fa9e4066f08beec538e775443c5be79dd423fcabahrens old_umask = umask(0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The construct 'flags - FREAD' conveniently maps combinations of
fa9e4066f08beec538e775443c5be79dd423fcabahrens * FREAD and FWRITE to the corresponding O_RDONLY, O_WRONLY, and O_RDWR.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens fd = open64(realpath, flags - FREAD, mode);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (flags & FCREAT)
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) umask(old_umask);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fd == -1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fstat64(fd, &st) == -1) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens *vpp = vp = umem_zalloc(sizeof (vnode_t), UMEM_NOFAIL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens vp->v_fd = fd;
fa9e4066f08beec538e775443c5be79dd423fcabahrens vp->v_size = st.st_size;
fa9e4066f08beec538e775443c5be79dd423fcabahrens vp->v_path = spa_strdup(path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensvn_openat(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2,
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw int x3, vnode_t *startvp, int fd)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *realpath = umem_alloc(strlen(path) + 2, UMEM_NOFAIL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens int ret;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(startvp == rootdir);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(realpath, "/%s", path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw /* fd ignored for now, need if want to simulate nbmand support */
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = vn_open(realpath, x1, flags, mode, vpp, x2, x3);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens umem_free(realpath, strlen(path) + 2);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*ARGSUSED*/
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensvn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, offset_t offset,
fa9e4066f08beec538e775443c5be79dd423fcabahrens int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens ssize_t iolen, split;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (uio == UIO_READ) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens iolen = pread64(vp->v_fd, addr, len, offset);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * To simulate partial disk writes, we split writes into two
fa9e4066f08beec538e775443c5be79dd423fcabahrens * system calls so that the process can be killed in between.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens split = (len > 0 ? rand() % len : 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens iolen = pwrite64(vp->v_fd, addr, split, offset);
fa9e4066f08beec538e775443c5be79dd423fcabahrens iolen += pwrite64(vp->v_fd, (char *)addr + split,
fa9e4066f08beec538e775443c5be79dd423fcabahrens len - split, offset + split);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (iolen == -1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (errno);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (residp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens *residp = len - iolen;
fa9e4066f08beec538e775443c5be79dd423fcabahrens else if (iolen != len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (EIO);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensvn_close(vnode_t *vp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens close(vp->v_fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens spa_strfree(vp->v_path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens umem_free(vp, sizeof (vnode_t));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef ZFS_DEBUG
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Figure out which debugging statements to print
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic char *dprintf_string;
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic int dprintf_print_all;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensdprintf_find_string(const char *string)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *tmp_str = dprintf_string;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int len = strlen(string);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Find out if this is a string we want to print.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * String format: file1.c,function_name1,file2.c,file3.c
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens while (tmp_str != NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strncmp(tmp_str, string, len) == 0 &&
fa9e4066f08beec538e775443c5be79dd423fcabahrens (tmp_str[len] == ',' || tmp_str[len] == '\0'))
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens tmp_str = strchr(tmp_str, ',');
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (tmp_str != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens tmp_str++; /* Get rid of , */
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensdprintf_setup(int *argc, char **argv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens int i, j;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Debugging can be specified two ways: by setting the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * environment variable ZFS_DEBUG, or by including a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * "debug=..." argument on the command line. The command
fa9e4066f08beec538e775443c5be79dd423fcabahrens * line setting overrides the environment variable.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (i = 1; i < *argc; i++) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens int len = strlen("debug=");
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* First look for a command line argument */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strncmp("debug=", argv[i], len) == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf_string = argv[i] + len;
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Remove from args */
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (j = i; j < *argc; j++)
fa9e4066f08beec538e775443c5be79dd423fcabahrens argv[j] = argv[j+1];
fa9e4066f08beec538e775443c5be79dd423fcabahrens argv[j] = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens (*argc)--;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_string == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Look for ZFS_DEBUG environment variable */
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf_string = getenv("ZFS_DEBUG");
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Are we just turning on all debugging?
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("on"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf_print_all = 1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * debug printfs
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrens__dprintf(const char *file, const char *func, int line, const char *fmt, ...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens const char *newfile;
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_list adx;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get rid of annoying "../common/" prefix to filename.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens newfile = strrchr(file, '/');
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (newfile != NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens newfile = newfile + 1; /* Get rid of leading / */
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens newfile = file;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_print_all ||
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf_find_string(newfile) ||
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf_find_string(func)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Print out just the function name if requested */
fa9e4066f08beec538e775443c5be79dd423fcabahrens flockfile(stdout);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("pid"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%d ", getpid());
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("tid"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%u ", thr_self());
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("cpu"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%u ", getcpuid());
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("time"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%llu ", gethrtime());
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (dprintf_find_string("long"))
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%s, line %d: ", newfile, line);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%s: ", func);
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_start(adx, fmt);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) vprintf(fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_end(adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens funlockfile(stdout);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif /* ZFS_DEBUG */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * cmn_err() and panic()
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic char ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" };
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic char ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" };
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensvpanic(const char *fmt, va_list adx)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, "error: ");
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) vfprintf(stderr, fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, "\n");
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens abort(); /* think of it as a "user-level crash dump" */
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenspanic(const char *fmt, ...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_list adx;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_start(adx, fmt);
fa9e4066f08beec538e775443c5be79dd423fcabahrens vpanic(fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_end(adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
0125049cd6136d1d2ca9e982382a915b6d7916ceahrensvcmn_err(int ce, const char *fmt, va_list adx)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ce == CE_PANIC)
fa9e4066f08beec538e775443c5be79dd423fcabahrens vpanic(fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ce != CE_NOTE) { /* suppress noise in userland stress testing */
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, "%s", ce_prefix[ce]);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) vfprintf(stderr, fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, "%s", ce_suffix[ce]);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens}
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens/*PRINTFLIKE2*/
0125049cd6136d1d2ca9e982382a915b6d7916ceahrensvoid
0125049cd6136d1d2ca9e982382a915b6d7916ceahrenscmn_err(int ce, const char *fmt, ...)
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens{
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens va_list adx;
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens va_start(adx, fmt);
0125049cd6136d1d2ca9e982382a915b6d7916ceahrens vcmn_err(ce, fmt, adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_end(adx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock/*
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * =========================================================================
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * kobj interfaces
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * =========================================================================
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock */
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockstruct _buf *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockkobj_open_file(char *name)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock struct _buf *file;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vnode_t *vp;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock /* set vp as the _fd field of the file */
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw if (vn_openat(name, UIO_SYSSPACE, FREAD, 0, &vp, 0, 0, rootdir,
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw -1) != 0)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return ((void *)-1UL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock file = umem_zalloc(sizeof (struct _buf), UMEM_NOFAIL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock file->_fd = (intptr_t)vp;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (file);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockint
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockkobj_read_file(struct _buf *file, char *buf, unsigned size, unsigned off)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ssize_t resid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vn_rdwr(UIO_READ, (vnode_t *)file->_fd, buf, size, (offset_t)off,
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock UIO_SYSSPACE, 0, 0, 0, &resid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
b1b8ab34de515a5e83206da22c3d7e563241b021lling return (size - resid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockvoid
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockkobj_close_file(struct _buf *file)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vn_close((vnode_t *)file->_fd);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock umem_free(file, sizeof (struct _buf));
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockint
b1b8ab34de515a5e83206da22c3d7e563241b021llingkobj_get_filesize(struct _buf *file, uint64_t *size)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock struct stat64 st;
b1b8ab34de515a5e83206da22c3d7e563241b021lling vnode_t *vp = (vnode_t *)file->_fd;
b1b8ab34de515a5e83206da22c3d7e563241b021lling
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (fstat64(vp->v_fd, &st) == -1) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vn_close(vp);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (errno);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
b1b8ab34de515a5e83206da22c3d7e563241b021lling *size = st.st_size;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (0);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * misc routines
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensdelay(clock_t ticks)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens poll(0, 0, ticks * (1000 / hz));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Find highest one bit set.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Returns bit number + 1 of highest bit that is set, otherwise returns 0.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * High order bit is 31 (or 63 in _LP64 kernel).
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrenshighbit(ulong_t i)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens register int h = 1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i == 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef _LP64
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0xffffffff00000000ul) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 32; i >>= 32;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0xffff0000) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 16; i >>= 16;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0xff00) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 8; i >>= 8;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0xf0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 4; i >>= 4;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0xc) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 2; i >>= 2;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (i & 0x2) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens h += 1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (h);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwickstatic int random_fd = -1, urandom_fd = -1;
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic int
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwickrandom_get_bytes_common(uint8_t *ptr, size_t len, int fd)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens size_t resid = len;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ssize_t bytes;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT(fd != -1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens while (resid != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens bytes = read(fd, ptr, resid);
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick ASSERT3S(bytes, >=, 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ptr += bytes;
fa9e4066f08beec538e775443c5be79dd423fcabahrens resid -= bytes;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensrandom_get_bytes(uint8_t *ptr, size_t len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick return (random_get_bytes_common(ptr, len, random_fd));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrensrandom_get_pseudo_bytes(uint8_t *ptr, size_t len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick return (random_get_bytes_common(ptr, len, urandom_fd));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
95173954d2b811ceb583a9012c3b16e1d0dd6438ekint
95173954d2b811ceb583a9012c3b16e1d0dd6438ekddi_strtoul(const char *hw_serial, char **nptr, int base, unsigned long *result)
95173954d2b811ceb583a9012c3b16e1d0dd6438ek{
95173954d2b811ceb583a9012c3b16e1d0dd6438ek char *end;
95173954d2b811ceb583a9012c3b16e1d0dd6438ek
95173954d2b811ceb583a9012c3b16e1d0dd6438ek *result = strtoul(hw_serial, &end, base);
95173954d2b811ceb583a9012c3b16e1d0dd6438ek if (*result == 0)
95173954d2b811ceb583a9012c3b16e1d0dd6438ek return (errno);
95173954d2b811ceb583a9012c3b16e1d0dd6438ek return (0);
95173954d2b811ceb583a9012c3b16e1d0dd6438ek}
95173954d2b811ceb583a9012c3b16e1d0dd6438ek
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens * kernel emulation setup & teardown
fa9e4066f08beec538e775443c5be79dd423fcabahrens * =========================================================================
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic int
fa9e4066f08beec538e775443c5be79dd423fcabahrensumem_out_of_memory(void)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens char errmsg[] = "out of memory -- generating core dump\n";
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens write(fileno(stderr), errmsg, sizeof (errmsg));
fa9e4066f08beec538e775443c5be79dd423fcabahrens abort();
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenskernel_init(int mode)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens umem_nofail_callback(umem_out_of_memory);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens physmem = sysconf(_SC_PHYS_PAGES);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf("physmem = %llu pages (%.2f GB)\n", physmem,
fa9e4066f08beec538e775443c5be79dd423fcabahrens (double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30));
fa9e4066f08beec538e775443c5be79dd423fcabahrens
5679c89fcd2facbb4334df8870d3d7a4d2b11673jv (void) snprintf(hw_serial, sizeof (hw_serial), "%ld", gethostid());
95173954d2b811ceb583a9012c3b16e1d0dd6438ek
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1);
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1);
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick
88b7b0f29b20b808b9e06071885b1d6a3ddb6328Matthew Ahrens system_taskq_init();
88b7b0f29b20b808b9e06071885b1d6a3ddb6328Matthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens spa_init(mode);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrenskernel_fini(void)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens spa_fini();
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia system_taskq_fini();
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick close(random_fd);
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick close(urandom_fd);
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick random_fd = -1;
17f17c2df4ca603e787c5fc03b7af83519edfd2cbonwick urandom_fd = -1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahlint
c9431fa1e59a88c2f0abf611f25b97af964449e5ahlz_uncompress(void *dst, size_t *dstlen, const void *src, size_t srclen)
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl{
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl int ret;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl uLongf len = *dstlen;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl if ((ret = uncompress(dst, &len, src, srclen)) == Z_OK)
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl *dstlen = (size_t)len;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl return (ret);
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl}
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahlint
c9431fa1e59a88c2f0abf611f25b97af964449e5ahlz_compress_level(void *dst, size_t *dstlen, const void *src, size_t srclen,
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl int level)
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl{
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl int ret;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl uLongf len = *dstlen;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl if ((ret = compress2(dst, &len, src, srclen, level)) == Z_OK)
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl *dstlen = (size_t)len;
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl return (ret);
c9431fa1e59a88c2f0abf611f25b97af964449e5ahl}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksuid_t
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkscrgetuid(cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksgid_t
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkscrgetgid(cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksint
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkscrgetngroups(cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksgid_t *
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkscrgetgroups(cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (NULL);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksint
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkszfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksint
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkszfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksint
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkszfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (0);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marksksiddomain_t *
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marksksid_lookupdomain(const char *dom)
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks{
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks ksiddomain_t *kd;
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks kd = umem_zalloc(sizeof (ksiddomain_t), UMEM_NOFAIL);
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks kd->kd_name = spa_strdup(dom);
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks return (kd);
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks}
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marksvoid
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marksksiddomain_rele(ksiddomain_t *ksid)
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks{
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks spa_strfree(ksid->kd_name);
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks umem_free(ksid, sizeof (ksiddomain_t));
e0d35c4478bf9fd4080951b5b9d1f9a38948ba69marks}
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens/*
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens * Do not change the length of the returned string; it must be freed
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens * with strfree().
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens */
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrenschar *
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrenskmem_asprintf(const char *fmt, ...)
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens{
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens int size;
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens va_list adx;
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens char *buf;
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens va_start(adx, fmt);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens size = vsnprintf(NULL, 0, fmt, adx) + 1;
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens va_end(adx);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens buf = kmem_alloc(size, KM_SLEEP);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens va_start(adx, fmt);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens size = vsnprintf(buf, size, fmt, adx);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens va_end(adx);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens return (buf);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens}