diff options
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/balloon.c | 20 | ||||
| -rw-r--r-- | drivers/xen/pcpu.c | 20 | ||||
| -rw-r--r-- | drivers/xen/pvcalls-front.c | 46 | ||||
| -rw-r--r-- | drivers/xen/xen-pciback/pci_stub.c | 6 | ||||
| -rw-r--r-- | drivers/xen/xen-scsiback.c | 57 |
5 files changed, 63 insertions, 86 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 617a7f4f07a8..586a1673459e 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -97,24 +97,6 @@ static struct ctl_table balloon_table[] = { { } }; -static struct ctl_table balloon_root[] = { - { - .procname = "balloon", - .mode = 0555, - .child = balloon_table, - }, - { } -}; - -static struct ctl_table xen_root[] = { - { - .procname = "xen", - .mode = 0555, - .child = balloon_root, - }, - { } -}; - #else #define xen_hotplug_unpopulated 0 #endif @@ -747,7 +729,7 @@ static int __init balloon_init(void) #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG set_online_page_callback(&xen_online_page); register_memory_notifier(&xen_memory_nb); - register_sysctl_table(xen_root); + register_sysctl_init("xen/balloon", balloon_table); #endif balloon_add_regions(); diff --git a/drivers/xen/pcpu.c b/drivers/xen/pcpu.c index fd3a644b0855..b3e3d1bb37f3 100644 --- a/drivers/xen/pcpu.c +++ b/drivers/xen/pcpu.c @@ -58,6 +58,7 @@ struct pcpu { struct list_head list; struct device dev; uint32_t cpu_id; + uint32_t acpi_id; uint32_t flags; }; @@ -249,6 +250,7 @@ static struct pcpu *create_and_register_pcpu(struct xenpf_pcpuinfo *info) INIT_LIST_HEAD(&pcpu->list); pcpu->cpu_id = info->xen_cpuid; + pcpu->acpi_id = info->acpi_id; pcpu->flags = info->flags; /* Need hold on xen_pcpu_lock before pcpu list manipulations */ @@ -381,3 +383,21 @@ err1: return ret; } arch_initcall(xen_pcpu_init); + +#ifdef CONFIG_ACPI +bool __init xen_processor_present(uint32_t acpi_id) +{ + const struct pcpu *pcpu; + bool online = false; + + mutex_lock(&xen_pcpu_lock); + list_for_each_entry(pcpu, &xen_pcpus, list) + if (pcpu->acpi_id == acpi_id) { + online = pcpu->flags & XEN_PCPU_FLAGS_ONLINE; + break; + } + mutex_unlock(&xen_pcpu_lock); + + return online; +} +#endif diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c index d5d589bda243..b72ee9379d77 100644 --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@ -227,22 +227,30 @@ again: static void free_active_ring(struct sock_mapping *map); -static void pvcalls_front_free_map(struct pvcalls_bedata *bedata, - struct sock_mapping *map) +static void pvcalls_front_destroy_active(struct pvcalls_bedata *bedata, + struct sock_mapping *map) { int i; unbind_from_irqhandler(map->active.irq, map); - spin_lock(&bedata->socket_lock); - if (!list_empty(&map->list)) - list_del_init(&map->list); - spin_unlock(&bedata->socket_lock); + if (bedata) { + spin_lock(&bedata->socket_lock); + if (!list_empty(&map->list)) + list_del_init(&map->list); + spin_unlock(&bedata->socket_lock); + } for (i = 0; i < (1 << PVCALLS_RING_ORDER); i++) gnttab_end_foreign_access(map->active.ring->ref[i], NULL); gnttab_end_foreign_access(map->active.ref, NULL); free_active_ring(map); +} + +static void pvcalls_front_free_map(struct pvcalls_bedata *bedata, + struct sock_mapping *map) +{ + pvcalls_front_destroy_active(bedata, map); kfree(map); } @@ -433,19 +441,18 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr, pvcalls_exit_sock(sock); return ret; } - - spin_lock(&bedata->socket_lock); - ret = get_request(bedata, &req_id); + ret = create_active(map, &evtchn); if (ret < 0) { - spin_unlock(&bedata->socket_lock); free_active_ring(map); pvcalls_exit_sock(sock); return ret; } - ret = create_active(map, &evtchn); + + spin_lock(&bedata->socket_lock); + ret = get_request(bedata, &req_id); if (ret < 0) { spin_unlock(&bedata->socket_lock); - free_active_ring(map); + pvcalls_front_destroy_active(NULL, map); pvcalls_exit_sock(sock); return ret; } @@ -821,28 +828,27 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags) pvcalls_exit_sock(sock); return ret; } - spin_lock(&bedata->socket_lock); - ret = get_request(bedata, &req_id); + ret = create_active(map2, &evtchn); if (ret < 0) { - clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, - (void *)&map->passive.flags); - spin_unlock(&bedata->socket_lock); free_active_ring(map2); kfree(map2); + clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, + (void *)&map->passive.flags); pvcalls_exit_sock(sock); return ret; } - ret = create_active(map2, &evtchn); + spin_lock(&bedata->socket_lock); + ret = get_request(bedata, &req_id); if (ret < 0) { - free_active_ring(map2); - kfree(map2); clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT, (void *)&map->passive.flags); spin_unlock(&bedata->socket_lock); + pvcalls_front_free_map(bedata, map2); pvcalls_exit_sock(sock); return ret; } + list_add_tail(&map2->list, &bedata->socket_mappings); req = RING_GET_REQUEST(&bedata->ring, req_id); diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index bba527620507..e34b623e4b41 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -194,8 +194,6 @@ static struct pci_dev *pcistub_device_get_pci_dev(struct xen_pcibk_device *pdev, struct pci_dev *pci_dev = NULL; unsigned long flags; - pcistub_device_get(psdev); - spin_lock_irqsave(&psdev->lock, flags); if (!psdev->pdev) { psdev->pdev = pdev; @@ -203,8 +201,8 @@ static struct pci_dev *pcistub_device_get_pci_dev(struct xen_pcibk_device *pdev, } spin_unlock_irqrestore(&psdev->lock, flags); - if (!pci_dev) - pcistub_device_put(psdev); + if (pci_dev) + pcistub_device_get(psdev); return pci_dev; } diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 954188b0b858..8b77e4c06e43 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1010,12 +1010,6 @@ out_free: return err; } -static void __scsiback_del_translation_entry(struct v2p_entry *entry) -{ - list_del(&entry->l); - kref_put(&entry->kref, scsiback_free_translation_entry); -} - /* Delete the translation entry specified */ @@ -1024,18 +1018,20 @@ static int scsiback_del_translation_entry(struct vscsibk_info *info, { struct v2p_entry *entry; unsigned long flags; - int ret = 0; spin_lock_irqsave(&info->v2p_lock, flags); /* Find out the translation entry specified */ entry = scsiback_chk_translation_entry(info, v); if (entry) - __scsiback_del_translation_entry(entry); - else - ret = -ENOENT; + list_del(&entry->l); spin_unlock_irqrestore(&info->v2p_lock, flags); - return ret; + + if (!entry) + return -ENOENT; + + kref_put(&entry->kref, scsiback_free_translation_entry); + return 0; } static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state, @@ -1239,14 +1235,19 @@ static void scsiback_release_translation_entry(struct vscsibk_info *info) { struct v2p_entry *entry, *tmp; struct list_head *head = &(info->v2p_entry_lists); + struct list_head tmp_list; unsigned long flags; spin_lock_irqsave(&info->v2p_lock, flags); - list_for_each_entry_safe(entry, tmp, head, l) - __scsiback_del_translation_entry(entry); + list_cut_before(&tmp_list, head, head); spin_unlock_irqrestore(&info->v2p_lock, flags); + + list_for_each_entry_safe(entry, tmp, &tmp_list, l) { + list_del(&entry->l); + kref_put(&entry->kref, scsiback_free_translation_entry); + } } static void scsiback_remove(struct xenbus_device *dev) @@ -1406,11 +1407,6 @@ static void scsiback_drop_tport(struct se_wwn *wwn) kfree(tport); } -static u32 scsiback_tpg_get_inst_index(struct se_portal_group *se_tpg) -{ - return 1; -} - static int scsiback_check_stop_free(struct se_cmd *se_cmd) { return transport_generic_free_cmd(se_cmd, 0); @@ -1421,11 +1417,6 @@ static void scsiback_release_cmd(struct se_cmd *se_cmd) target_free_tag(se_cmd->se_sess, se_cmd); } -static u32 scsiback_sess_get_index(struct se_session *se_sess) -{ - return 0; -} - static int scsiback_write_pending(struct se_cmd *se_cmd) { /* Go ahead and process the write immediately */ @@ -1434,15 +1425,6 @@ static int scsiback_write_pending(struct se_cmd *se_cmd) return 0; } -static void scsiback_set_default_node_attrs(struct se_node_acl *nacl) -{ -} - -static int scsiback_get_cmd_state(struct se_cmd *se_cmd) -{ - return 0; -} - static int scsiback_queue_data_in(struct se_cmd *se_cmd) { struct vscsibk_pend *pending_req = container_of(se_cmd, @@ -1822,11 +1804,6 @@ static int scsiback_check_true(struct se_portal_group *se_tpg) return 1; } -static int scsiback_check_false(struct se_portal_group *se_tpg) -{ - return 0; -} - static const struct target_core_fabric_ops scsiback_ops = { .module = THIS_MODULE, .fabric_name = "xen-pvscsi", @@ -1834,16 +1811,10 @@ static const struct target_core_fabric_ops scsiback_ops = { .tpg_get_tag = scsiback_get_tag, .tpg_check_demo_mode = scsiback_check_true, .tpg_check_demo_mode_cache = scsiback_check_true, - .tpg_check_demo_mode_write_protect = scsiback_check_false, - .tpg_check_prod_mode_write_protect = scsiback_check_false, - .tpg_get_inst_index = scsiback_tpg_get_inst_index, .check_stop_free = scsiback_check_stop_free, .release_cmd = scsiback_release_cmd, - .sess_get_index = scsiback_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = scsiback_write_pending, - .set_default_node_attributes = scsiback_set_default_node_attrs, - .get_cmd_state = scsiback_get_cmd_state, .queue_data_in = scsiback_queue_data_in, .queue_status = scsiback_queue_status, .queue_tm_rsp = scsiback_queue_tm_rsp, |