static int
linux_common_modevent(module_t mod, int type, void *data)
{
struct linux_device_handler **ldhp;
switch(type) {
case MOD_LOAD:
linux_osd_jail_register();
linux_exit_tag = EVENTHANDLER_REGISTER(process_exit,
linux_proc_exit, NULL, 1000);
linux_exec_tag = EVENTHANDLER_REGISTER(process_exec,
linux_proc_exec, NULL, 1000);
linux_thread_dtor_tag = EVENTHANDLER_REGISTER(thread_dtor,
linux_thread_dtor, NULL, EVENTHANDLER_PRI_ANY);
SET_FOREACH(ldhp, linux_device_handler_set)
linux_device_register_handler(*ldhp);
break;
case MOD_UNLOAD:
linux_osd_jail_deregister();
SET_FOREACH(ldhp, linux_device_handler_set)
linux_device_unregister_handler(*ldhp);
EVENTHANDLER_DEREGISTER(process_exit, linux_exit_tag);
EVENTHANDLER_DEREGISTER(process_exec, linux_exec_tag);
EVENTHANDLER_DEREGISTER(thread_dtor, linux_thread_dtor_tag);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
static int
nsmb_dev_load(module_t mod, int cmd, void *arg)
{
int error = 0;
switch (cmd) {
case MOD_LOAD:
error = smb_sm_init();
if (error)
break;
error = smb_iod_init();
if (error) {
smb_sm_done();
break;
}
clone_setup(&nsmb_clones);
nsmb_dev_tag = EVENTHANDLER_REGISTER(dev_clone, nsmb_dev_clone, 0, 1000);
break;
case MOD_UNLOAD:
smb_iod_done();
error = smb_sm_done();
if (error)
break;
EVENTHANDLER_DEREGISTER(dev_clone, nsmb_dev_tag);
drain_dev_clone_events();
clone_cleanup(&nsmb_clones);
destroy_dev_drain(&nsmb_cdevsw);
break;
default:
error = EINVAL;
break;
}
return error;
}
/*
* Module handling
*/
static int
nmdm_modevent(module_t mod, int type, void *data)
{
static eventhandler_tag tag;
switch(type) {
case MOD_LOAD:
tag = EVENTHANDLER_REGISTER(dev_clone, nmdm_clone, 0, 1000);
if (tag == NULL)
return (ENOMEM);
break;
case MOD_SHUTDOWN:
break;
case MOD_UNLOAD:
if (nmdm_count != 0)
return (EBUSY);
EVENTHANDLER_DEREGISTER(dev_clone, tag);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
static int
tunmodevent(module_t mod, int type, void *data)
{
static eventhandler_tag tag;
struct tun_softc *tp;
switch (type) {
case MOD_LOAD:
mtx_init(&tunmtx, "tunmtx", NULL, MTX_DEF);
clone_setup(&tunclones);
tag = EVENTHANDLER_REGISTER(dev_clone, tunclone, 0, 1000);
if (tag == NULL)
return (ENOMEM);
break;
case MOD_UNLOAD:
EVENTHANDLER_DEREGISTER(dev_clone, tag);
mtx_lock(&tunmtx);
while ((tp = TAILQ_FIRST(&tunhead)) != NULL) {
TAILQ_REMOVE(&tunhead, tp, tun_list);
mtx_unlock(&tunmtx);
tun_destroy(tp);
mtx_lock(&tunmtx);
}
mtx_unlock(&tunmtx);
clone_cleanup(&tunclones);
mtx_destroy(&tunmtx);
break;
default:
return EOPNOTSUPP;
}
return 0;
}
void ipfw3_log_modevent(int type){
struct ifnet *tmpif;
int i;
switch (type) {
case MOD_LOAD:
LOGIF_LOCK_INIT();
log_if_count = 0;
if_clone_attach(&ipfw_log_cloner);
ipfw_log_ifdetach_cookie =
EVENTHANDLER_REGISTER(ifnet_detach_event,
ipfw_log_clone_destroy, &ipfw_log_cloner,
EVENTHANDLER_PRI_ANY);
break;
case MOD_UNLOAD:
EVENTHANDLER_DEREGISTER(ifnet_detach_event,
ipfw_log_ifdetach_cookie);
if_clone_detach(&ipfw_log_cloner);
for(i = 0; log_if_count > 0 && i < LOG_IF_MAX; i++){
tmpif = log_if_table[i];
if (tmpif != NULL) {
ipfw_log_clone_destroy(tmpif);
}
}
LOGIF_LOCK_DESTROY();
break;
default:
break;
}
}
static int
mfi_pci_detach(device_t dev)
{
struct mfi_softc *sc;
int error, devcount, i;
device_t *devlist;
sc = device_get_softc(dev);
sx_xlock(&sc->mfi_config_lock);
mtx_lock(&sc->mfi_io_lock);
if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
mtx_unlock(&sc->mfi_io_lock);
sx_xunlock(&sc->mfi_config_lock);
return (EBUSY);
}
sc->mfi_detaching = 1;
mtx_unlock(&sc->mfi_io_lock);
if ((error = device_get_children(sc->mfi_dev, &devlist, &devcount)) != 0) {
sx_xunlock(&sc->mfi_config_lock);
return error;
}
for (i = 0; i < devcount; i++)
device_delete_child(sc->mfi_dev, devlist[i]);
free(devlist, M_TEMP);
sx_xunlock(&sc->mfi_config_lock);
EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
mfi_shutdown(sc);
mfi_free(sc);
mfi_pci_free(sc);
return (0);
}
static int vgdrvFreeBSDDetach(device_t pDevice)
{
struct VBoxGuestDeviceState *pState = device_get_softc(pDevice);
if (cUsers > 0)
return EBUSY;
/*
* Reverse what we did in vgdrvFreeBSDAttach.
*/
if (g_vgdrvFreeBSDEHTag != NULL)
EVENTHANDLER_DEREGISTER(dev_clone, g_vgdrvFreeBSDEHTag);
clone_cleanup(&g_pvgdrvFreeBSDClones);
vgdrvFreeBSDRemoveIRQ(pDevice, pState);
if (pState->pVMMDevMemRes)
bus_release_resource(pDevice, SYS_RES_MEMORY, pState->iVMMDevMemResId, pState->pVMMDevMemRes);
if (pState->pIOPortRes)
bus_release_resource(pDevice, SYS_RES_IOPORT, pState->iIOPortResId, pState->pIOPortRes);
VGDrvCommonDeleteDevExt(&g_DevExt);
RTR0Term();
return 0;
}
static int
ichwd_detach(device_t dev)
{
struct ichwd_softc *sc;
device_t ich = NULL;
sc = device_get_softc(dev);
/* halt the watchdog timer */
if (sc->active)
ichwd_tmr_disable(sc);
/* enable the SMI handler */
if (sc->smi_enabled != 0)
ichwd_smi_enable(sc);
/* deregister event handler */
if (sc->ev_tag != NULL)
EVENTHANDLER_DEREGISTER(watchdog_list, sc->ev_tag);
sc->ev_tag = NULL;
/* reset the watchdog status registers */
ichwd_sts_reset(sc);
/* deallocate I/O register space */
bus_release_resource(dev, SYS_RES_IOPORT, sc->tco_rid, sc->tco_res);
bus_release_resource(dev, SYS_RES_IOPORT, sc->smi_rid, sc->smi_res);
/* deallocate memory resource */
ich = ichwd_find_ich_lpc_bridge(NULL);
if (sc->gcs_res && ich)
bus_release_resource(ich, SYS_RES_MEMORY, sc->gcs_rid, sc->gcs_res);
return (0);
}
static int
nsmb_dev_load(module_t mod, int cmd, void *arg)
{
int error = 0;
switch (cmd) {
case MOD_LOAD:
error = smb_sm_init();
if (error)
break;
error = smb_iod_init();
if (error) {
smb_sm_done();
break;
}
cdevsw_add(&nsmb_cdevsw);
nsmb_dev_tag = EVENTHANDLER_REGISTER(dev_clone, nsmb_dev_clone, 0, 1000);
printf("netsmb_dev: loaded\n");
break;
case MOD_UNLOAD:
smb_iod_done();
error = smb_sm_done();
error = 0;
EVENTHANDLER_DEREGISTER(dev_clone, nsmb_dev_tag);
cdevsw_remove(&nsmb_cdevsw);
printf("netsmb_dev: unloaded\n");
break;
default:
error = EINVAL;
break;
}
return error;
}
static int
mfi_pci_detach(device_t dev)
{
struct mfi_softc *sc;
struct mfi_disk *ld;
int error;
sc = device_get_softc(dev);
sx_xlock(&sc->mfi_config_lock);
mtx_lock(&sc->mfi_io_lock);
if ((sc->mfi_flags & MFI_FLAGS_OPEN) != 0) {
mtx_unlock(&sc->mfi_io_lock);
sx_xunlock(&sc->mfi_config_lock);
return (EBUSY);
}
sc->mfi_detaching = 1;
mtx_unlock(&sc->mfi_io_lock);
while ((ld = TAILQ_FIRST(&sc->mfi_ld_tqh)) != NULL) {
if ((error = device_delete_child(dev, ld->ld_dev)) != 0) {
sc->mfi_detaching = 0;
sx_xunlock(&sc->mfi_config_lock);
return (error);
}
}
sx_xunlock(&sc->mfi_config_lock);
EVENTHANDLER_DEREGISTER(shutdown_final, sc->mfi_eh);
mfi_shutdown(sc);
mfi_free(sc);
mfi_pci_free(sc);
return (0);
}
static void
acpi_timer_suspend_handler(struct timecounter *newtc)
{
struct timecounter *tc;
/* Deregister existing resume event handler. */
if (acpi_timer_eh != NULL) {
EVENTHANDLER_DEREGISTER(power_resume, acpi_timer_eh);
acpi_timer_eh = NULL;
}
if ((timecounter->tc_flags & TC_FLAGS_SUSPEND_SAFE) != 0) {
/*
* If we are using a suspend safe timecounter, don't
* save/restore it across suspend/resume.
*/
return;
}
KASSERT(newtc == &acpi_timer_timecounter,
("acpi_timer_suspend_handler: wrong timecounter"));
tc = timecounter;
if (tc != newtc) {
if (bootverbose)
device_printf(acpi_timer_dev,
"switching timecounter, %s -> %s\n",
tc->tc_name, newtc->tc_name);
(void)acpi_timer_read();
(void)acpi_timer_read();
timecounter = newtc;
acpi_timer_eh = EVENTHANDLER_REGISTER(power_resume,
acpi_timer_resume_handler, tc, EVENTHANDLER_PRI_LAST);
}
}
static void
fuse_bringdown(eventhandler_tag eh_tag)
{
EVENTHANDLER_DEREGISTER(dev_clone, eh_tag);
fuse_ipc_destroy();
clone_cleanup(&fuseclones);
mtx_destroy(&fuse_mtx);
}
/*
* Tear down vnode cache
*/
void
pfs_vncache_unload(void)
{
mtx_assert(&Giant, MA_OWNED);
EVENTHANDLER_DEREGISTER(process_exit, pfs_exit_tag);
KASSERT(pfs_vncache_entries == 0,
("%d vncache entries remaining", pfs_vncache_entries));
mtx_destroy(&pfs_vncache_mutex);
}
static int
canbepm_detach(device_t dev)
{
struct canbepm_softc *sc = device_get_softc(dev);
/* eventhandler deregist */
EVENTHANDLER_DEREGISTER(shutdown_final, sc->canbepm_tag);
BUS_CHILD_DETACHED(device_get_parent(dev), dev);
return (0);
}
/*
*
* Detach interface event handlers on last VNET instance
* detach.
*/
static void
iface_khandler_deregister()
{
int destroy;
destroy = 0;
mtx_lock(&vnet_mtx);
if (num_vnets == 1)
destroy = 1;
num_vnets--;
mtx_unlock(&vnet_mtx);
if (destroy == 0)
return;
EVENTHANDLER_DEREGISTER(ifnet_arrival_event,
ipfw_ifattach_event);
EVENTHANDLER_DEREGISTER(ifnet_departure_event,
ipfw_ifdetach_event);
}
/*
* Tear down vnode cache
*/
void
pfs_vncache_unload(void)
{
EVENTHANDLER_DEREGISTER(process_exit, pfs_exit_tag);
mtx_lock(&pfs_vncache_mutex);
pfs_purge_locked(NULL, true);
mtx_unlock(&pfs_vncache_mutex);
KASSERT(pfs_vncache_entries == 0,
("%d vncache entries remaining", pfs_vncache_entries));
mtx_destroy(&pfs_vncache_mutex);
}
/* Called from detach */
void
sms1xxx_demux_exit(struct sms1xxx_softc *sc)
{
/* Wake up readers ! */
if(sc->dvr.state & DVR_SLEEP) {
wakeup(&sc->dvr);
}
if(sc->dvr.state & DVR_POLL) {
sc->dvr.state &= ~DVR_POLL;
selwakeuppri(&sc->dvr.rsel,PZERO);
}
/* Devices */
if(sc->dvr.dev != NULL) {
TRACE(TRACE_MODULE,"destroying dvr0, addr=%p\n",sc->dvr.dev);
destroy_dev(sc->dvr.dev);
sc->dvr.dev = NULL;
}
if(sc->clonetag != NULL) {
EVENTHANDLER_DEREGISTER(dev_clone,sc->clonetag);
sc->clonetag = NULL;
}
/* Destroy remaining clones */
for(int i = 0; i < MAX_FILTERS; ++i) {
if((sc->filter[i].pid != PIDFREE) &&
(sc->filter[i].dev != NULL)) {
TRACE(TRACE_MODULE,"destroying demux0.%d device, addr=%p\n",
i,sc->filter[i].dev);
destroy_dev_sched_cb(sc->filter[i].dev,
sms1xxx_demux_filter_reset, &sc->filter[i]);
}
}
if(sc->demux_clones != NULL) {
drain_dev_clone_events();
clone_cleanup(&sc->demux_clones);
destroy_dev_drain(&sms1xxx_demux_cdevsw);
sc->demux_clones = NULL;
}
/* DVR */
sc->dvr.state = 0;
sms1xxx_demux_pesbuf_reset(sc, 0, "exit");
if(sc->dvr.buf != NULL) {
free(sc->dvr.buf, M_USBDEV);
sc->dvr.buf = NULL;
}
/* Mutexes */
mtx_destroy(&sc->filterlock);
mtx_destroy(&sc->dvr.lock);
}
static int
cdce_driver_loaded(struct module *mod, int what, void *arg)
{
switch (what) {
case MOD_LOAD:
/* register our autoinstall handler */
cdce_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
cdce_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
return (0);
case MOD_UNLOAD:
EVENTHANDLER_DEREGISTER(usb_dev_configured, cdce_etag);
return (0);
default:
return (EOPNOTSUPP);
}
}
static int
pmc_isa_detach(device_t dev)
{
struct pmc_isa_softc *sc = device_get_softc(dev);
if (bootverbose) {
device_printf(dev, "pmc_isa_detach called\n");
}
if (sc->evt != NULL) {
EVENTHANDLER_DEREGISTER(shutdown_final, sc->evt);
}
sc->evt = NULL;
pmc_isa_release_resources(dev);
return 0;
}
/*
* The function called at load/unload.
*/
static int
fsyscall_modevent(struct module *_, int cmd, void *__)
{
int error = 0;
switch (cmd) {
case MOD_LOAD :
fsyscall_exit_tag = EVENTHANDLER_REGISTER(process_exit, process_exit, NULL, EVENTHANDLER_PRI_ANY);
break;
case MOD_UNLOAD :
EVENTHANDLER_DEREGISTER(process_exit, fsyscall_exit_tag);
break;
default :
error = EOPNOTSUPP;
break;
}
return (error);
}
static int
ti_wdt_detach(device_t dev)
{
struct ti_wdt_softc *sc;
sc = device_get_softc(dev);
if (sc->sc_ev_tag)
EVENTHANDLER_DEREGISTER(watchdog_list, sc->sc_ev_tag);
if (sc->sc_intr)
bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr);
if (sc->sc_irq_res)
bus_release_resource(dev, SYS_RES_IRQ,
rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
if (sc->sc_mem_res)
bus_release_resource(dev, SYS_RES_MEMORY,
rman_get_rid(sc->sc_mem_res), sc->sc_mem_res);
return (0);
}
static int
acpi_panasonic_detach(device_t dev)
{
struct acpi_panasonic_softc *sc;
sc = device_get_softc(dev);
/* Remove power profile event handler */
EVENTHANDLER_DEREGISTER(power_profile_change, sc->power_evh);
/* Remove notify handler */
AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
acpi_panasonic_notify);
/* Free sysctl tree */
sysctl_ctx_free(&sc->sysctl_ctx);
return (0);
}
static int
uhso_driver_loaded(struct module *mod, int what, void *arg)
{
switch (what) {
case MOD_LOAD:
/* register our autoinstall handler */
uhso_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
uhso_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
/* create our unit allocator for inet devs */
uhso_ifnet_unit = new_unrhdr(0, INT_MAX, NULL);
break;
case MOD_UNLOAD:
EVENTHANDLER_DEREGISTER(usb_dev_configured, uhso_etag);
delete_unrhdr(uhso_ifnet_unit);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
/*
* Disconnect ourselves from the system.
*/
static int
mpt_pci_detach(device_t dev)
{
struct mpt_softc *mpt;
mpt = (struct mpt_softc*)device_get_softc(dev);
if (mpt) {
mpt_disable_ints(mpt);
mpt_detach(mpt);
mpt_reset(mpt, /*reinit*/FALSE);
mpt_dma_mem_free(mpt);
mpt_free_bus_resources(mpt);
mpt_raid_free_mem(mpt);
if (mpt->eh != NULL) {
EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh);
}
}
return(0);
}
static int
alq_load_handler(module_t mod, int what, void *arg)
{
int ret;
ret = 0;
switch (what) {
case MOD_LOAD:
case MOD_SHUTDOWN:
break;
case MOD_QUIESCE:
ALD_LOCK();
/* Only allow unload if there are no open queues. */
if (BSD_LIST_FIRST(&ald_queues) == NULL) {
ald_shutingdown = 1;
ALD_UNLOCK();
EVENTHANDLER_DEREGISTER(shutdown_pre_sync,
alq_eventhandler_tag);
ald_shutdown(NULL, 0);
mtx_destroy(&ald_mtx);
} else {
ALD_UNLOCK();
ret = EBUSY;
}
break;
case MOD_UNLOAD:
/* If MOD_QUIESCE failed we must fail here too. */
if (ald_shutingdown == 0)
ret = EBUSY;
break;
default:
ret = EINVAL;
break;
}
return (ret);
}
static int
dcons_crom_detach(device_t dev)
{
struct dcons_crom_softc *sc;
sc = (struct dcons_crom_softc *) device_get_softc(dev);
sc->fd.post_busreset = NULL;
if (sc->ehand)
EVENTHANDLER_DEREGISTER(dcons_poll, sc->ehand);
/* XXX */
if (dcons_conf->dma_tag == sc->dma_tag)
dcons_conf->dma_tag = NULL;
bus_dmamap_unload(sc->dma_tag, sc->dma_map);
bus_dmamap_destroy(sc->dma_tag, sc->dma_map);
bus_dma_tag_destroy(sc->dma_tag);
return 0;
}
static int
amdsbwd_detach(device_t dev)
{
struct amdsbwd_softc *sc;
sc = device_get_softc(dev);
if (sc->ev_tag != NULL)
EVENTHANDLER_DEREGISTER(watchdog_list, sc->ev_tag);
if (sc->active)
amdsbwd_tmr_disable(sc);
if (sc->res_ctrl != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_ctrl,
sc->res_ctrl);
if (sc->res_count != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, sc->rid_count,
sc->res_count);
return (0);
}
static int VBoxDrvFreeBSDUnload(void)
{
Log(("VBoxDrvFreeBSDUnload:\n"));
if (g_cUsers > 0)
return EBUSY;
/*
* Reserve what we did in VBoxDrvFreeBSDInit.
*/
EVENTHANDLER_DEREGISTER(dev_clone, g_VBoxDrvFreeBSDEHTag);
clone_cleanup(&g_pVBoxDrvFreeBSDClones);
supdrvDeleteDevExt(&g_VBoxDrvFreeBSDDevExt);
RTR0Term();
memset(&g_VBoxDrvFreeBSDDevExt, 0, sizeof(g_VBoxDrvFreeBSDDevExt));
Log(("VBoxDrvFreeBSDUnload: returns\n"));
return VINF_SUCCESS;
}
static int
ixl_detach(device_t dev)
{
struct ixl_pf *pf = device_get_softc(dev);
struct i40e_hw *hw = &pf->hw;
struct ixl_vsi *vsi = &pf->vsi;
enum i40e_status_code status;
#if defined(PCI_IOV) || defined(IXL_IW)
int error;
#endif
INIT_DEBUGOUT("ixl_detach: begin");
/* Make sure VLANS are not using driver */
if (vsi->ifp->if_vlantrunk != NULL) {
device_printf(dev, "Vlan in use, detach first\n");
return (EBUSY);
}
#ifdef PCI_IOV
error = pci_iov_detach(dev);
if (error != 0) {
device_printf(dev, "SR-IOV in use; detach first.\n");
return (error);
}
#endif
/* Remove all previously allocated media types */
ifmedia_removeall(&vsi->media);
ether_ifdetach(vsi->ifp);
if (vsi->ifp->if_drv_flags & IFF_DRV_RUNNING)
ixl_stop(pf);
/* Shutdown LAN HMC */
status = i40e_shutdown_lan_hmc(hw);
if (status)
device_printf(dev,
"Shutdown LAN HMC failed with code %d\n", status);
/* Teardown LAN queue resources */
ixl_teardown_queue_msix(vsi);
ixl_free_queue_tqs(vsi);
/* Shutdown admin queue */
ixl_disable_intr0(hw);
ixl_teardown_adminq_msix(pf);
ixl_free_adminq_tq(pf);
status = i40e_shutdown_adminq(hw);
if (status)
device_printf(dev,
"Shutdown Admin queue failed with code %d\n", status);
/* Unregister VLAN events */
if (vsi->vlan_attach != NULL)
EVENTHANDLER_DEREGISTER(vlan_config, vsi->vlan_attach);
if (vsi->vlan_detach != NULL)
EVENTHANDLER_DEREGISTER(vlan_unconfig, vsi->vlan_detach);
callout_drain(&pf->timer);
#ifdef IXL_IW
if (ixl_enable_iwarp && pf->iw_enabled) {
error = ixl_iw_pf_detach(pf);
if (error == EBUSY) {
device_printf(dev, "iwarp in use; stop it first.\n");
return (error);
}
}
#endif
#ifdef DEV_NETMAP
netmap_detach(vsi->ifp);
#endif /* DEV_NETMAP */
ixl_pf_qmgr_destroy(&pf->qmgr);
ixl_free_pci_resources(pf);
bus_generic_detach(dev);
if_free(vsi->ifp);
ixl_free_vsi(vsi);
IXL_PF_LOCK_DESTROY(pf);
return (0);
}
static int
dtrace_unload()
{
dtrace_state_t *state;
int error = 0;
#if __FreeBSD_version < 800039
/*
* Check if there is still an event handler callback
* registered.
*/
if (eh_tag != 0) {
/* De-register the device cloning event handler. */
EVENTHANDLER_DEREGISTER(dev_clone, eh_tag);
eh_tag = 0;
/* Stop device cloning. */
clone_cleanup(&dtrace_clones);
}
#else
destroy_dev(dtrace_dev);
destroy_dev(helper_dev);
#endif
mutex_enter(&dtrace_provider_lock);
mutex_enter(&dtrace_lock);
mutex_enter(&cpu_lock);
ASSERT(dtrace_opens == 0);
if (dtrace_helpers > 0) {
mutex_exit(&cpu_lock);
mutex_exit(&dtrace_lock);
mutex_exit(&dtrace_provider_lock);
return (EBUSY);
}
if (dtrace_unregister((dtrace_provider_id_t)dtrace_provider) != 0) {
mutex_exit(&cpu_lock);
mutex_exit(&dtrace_lock);
mutex_exit(&dtrace_provider_lock);
return (EBUSY);
}
dtrace_provider = NULL;
if ((state = dtrace_anon_grab()) != NULL) {
/*
* If there were ECBs on this state, the provider should
* have not been allowed to detach; assert that there is
* none.
*/
ASSERT(state->dts_necbs == 0);
dtrace_state_destroy(state);
}
bzero(&dtrace_anon, sizeof (dtrace_anon_t));
mutex_exit(&cpu_lock);
if (dtrace_helptrace_enabled) {
kmem_free(dtrace_helptrace_buffer, 0);
dtrace_helptrace_buffer = NULL;
}
if (dtrace_probes != NULL) {
kmem_free(dtrace_probes, 0);
dtrace_probes = NULL;
dtrace_nprobes = 0;
}
dtrace_hash_destroy(dtrace_bymod);
dtrace_hash_destroy(dtrace_byfunc);
dtrace_hash_destroy(dtrace_byname);
dtrace_bymod = NULL;
dtrace_byfunc = NULL;
dtrace_byname = NULL;
kmem_cache_destroy(dtrace_state_cache);
delete_unrhdr(dtrace_arena);
if (dtrace_toxrange != NULL) {
kmem_free(dtrace_toxrange, 0);
dtrace_toxrange = NULL;
dtrace_toxranges = 0;
dtrace_toxranges_max = 0;
}
ASSERT(dtrace_vtime_references == 0);
ASSERT(dtrace_opens == 0);
ASSERT(dtrace_retained == NULL);
mutex_exit(&dtrace_lock);
mutex_exit(&dtrace_provider_lock);
mutex_destroy(&dtrace_meta_lock);
mutex_destroy(&dtrace_provider_lock);
mutex_destroy(&dtrace_lock);
mutex_destroy(&dtrace_errlock);
/* XXX Hack */
mutex_destroy(&mod_lock);
/* Reset our hook for exceptions. */
dtrace_invop_uninit();
/*
* Reset our hook for thread switches, but ensure that vtime isn't
* active first.
*/
dtrace_vtime_active = 0;
dtrace_vtime_switch_func = NULL;
/* Unhook from the trap handler. */
dtrace_trap_func = NULL;
return (error);
}
