#include "scsi_logging.h"
-static int scsi_host_next_hn; /* host_no for next new host */
+static atomic_t scsi_host_next_hn; /* host_no for next new host */
-static void scsi_host_cls_release(struct class_device *class_dev)
+static void scsi_host_cls_release(struct device *dev)
{
- put_device(&class_to_shost(class_dev)->shost_gendev);
+ put_device(&class_to_shost(dev)->shost_gendev);
}
static struct class shost_class = {
.name = "scsi_host",
- .release = scsi_host_cls_release,
+ .dev_release = scsi_host_cls_release,
};
/**
return;
}
spin_unlock_irqrestore(shost->host_lock, flags);
- mutex_unlock(&shost->scan_mutex);
scsi_forget_host(shost);
+ mutex_unlock(&shost->scan_mutex);
scsi_proc_host_rm(shost);
spin_lock_irqsave(shost->host_lock, flags);
spin_unlock_irqrestore(shost->host_lock, flags);
transport_unregister_device(&shost->shost_gendev);
- class_device_unregister(&shost->shost_classdev);
+ device_unregister(&shost->shost_dev);
device_del(&shost->shost_gendev);
- scsi_proc_hostdir_rm(shost->hostt);
}
EXPORT_SYMBOL(scsi_remove_host);
if (!shost->can_queue) {
printk(KERN_ERR "%s: can_queue = 0 no longer supported\n",
sht->name);
- goto out;
+ goto fail;
}
+ error = scsi_setup_command_freelist(shost);
+ if (error)
+ goto fail;
+
if (!shost->shost_gendev.parent)
shost->shost_gendev.parent = dev ? dev : &platform_bus;
scsi_host_set_state(shost, SHOST_RUNNING);
get_device(shost->shost_gendev.parent);
- error = class_device_add(&shost->shost_classdev);
+ error = device_add(&shost->shost_dev);
if (error)
goto out_del_gendev;
GFP_KERNEL);
if (shost->shost_data == NULL) {
error = -ENOMEM;
- goto out_del_classdev;
+ goto out_del_dev;
}
}
if (shost->transportt->create_work_queue) {
- snprintf(shost->work_q_name, KOBJ_NAME_LEN, "scsi_wq_%d",
- shost->host_no);
+ snprintf(shost->work_q_name, sizeof(shost->work_q_name),
+ "scsi_wq_%d", shost->host_no);
shost->work_q = create_singlethread_workqueue(
shost->work_q_name);
if (!shost->work_q) {
destroy_workqueue(shost->work_q);
out_free_shost_data:
kfree(shost->shost_data);
- out_del_classdev:
- class_device_del(&shost->shost_classdev);
+ out_del_dev:
+ device_del(&shost->shost_dev);
out_del_gendev:
device_del(&shost->shost_gendev);
out:
+ scsi_destroy_command_freelist(shost);
+ fail:
return error;
}
EXPORT_SYMBOL(scsi_add_host);
struct Scsi_Host *shost = dev_to_shost(dev);
struct device *parent = dev->parent;
+ scsi_proc_hostdir_rm(shost->hostt);
+
if (shost->ehandler)
kthread_stop(shost->ehandler);
if (shost->work_q)
kfree(shost);
}
+static struct device_type scsi_host_type = {
+ .name = "scsi_host",
+ .release = scsi_host_dev_release,
+};
+
/**
* scsi_host_alloc - register a scsi host adapter instance.
* @sht: pointer to scsi host template
mutex_init(&shost->scan_mutex);
- shost->host_no = scsi_host_next_hn++; /* XXX(hch): still racy */
+ /*
+ * subtract one because we increment first then return, but we need to
+ * know what the next host number was before increment
+ */
+ shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
shost->dma_channel = 0xff;
/* These three are default values which can be overridden */
shost->unchecked_isa_dma = sht->unchecked_isa_dma;
shost->use_clustering = sht->use_clustering;
shost->ordered_tag = sht->ordered_tag;
- shost->active_mode = sht->supported_mode;
if (sht->supported_mode == MODE_UNKNOWN)
/* means we didn't set it ... default to INITIATOR */
else
shost->dma_boundary = 0xffffffff;
- rval = scsi_setup_command_freelist(shost);
- if (rval)
- goto fail_kfree;
-
device_initialize(&shost->shost_gendev);
- snprintf(shost->shost_gendev.bus_id, BUS_ID_SIZE, "host%d",
- shost->host_no);
- shost->shost_gendev.release = scsi_host_dev_release;
-
- class_device_initialize(&shost->shost_classdev);
- shost->shost_classdev.dev = &shost->shost_gendev;
- shost->shost_classdev.class = &shost_class;
- snprintf(shost->shost_classdev.class_id, BUS_ID_SIZE, "host%d",
- shost->host_no);
+ dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);
+#ifndef CONFIG_SYSFS_DEPRECATED
+ shost->shost_gendev.bus = &scsi_bus_type;
+#endif
+ shost->shost_gendev.type = &scsi_host_type;
+
+ device_initialize(&shost->shost_dev);
+ shost->shost_dev.parent = &shost->shost_gendev;
+ shost->shost_dev.class = &shost_class;
+ dev_set_name(&shost->shost_dev, "host%d", shost->host_no);
+ shost->shost_dev.groups = scsi_sysfs_shost_attr_groups;
shost->ehandler = kthread_run(scsi_error_handler, shost,
"scsi_eh_%d", shost->host_no);
if (IS_ERR(shost->ehandler)) {
rval = PTR_ERR(shost->ehandler);
- goto fail_destroy_freelist;
+ goto fail_kfree;
}
scsi_proc_hostdir_add(shost->hostt);
return shost;
- fail_destroy_freelist:
- scsi_destroy_command_freelist(shost);
fail_kfree:
kfree(shost);
return NULL;
}
EXPORT_SYMBOL(scsi_unregister);
-static int __scsi_host_match(struct class_device *cdev, void *data)
+static int __scsi_host_match(struct device *dev, void *data)
{
struct Scsi_Host *p;
unsigned short *hostnum = (unsigned short *)data;
- p = class_to_shost(cdev);
+ p = class_to_shost(dev);
return p->host_no == *hostnum;
}
*
* Return value:
* A pointer to located Scsi_Host or NULL.
+ *
+ * The caller must do a scsi_host_put() to drop the reference
+ * that scsi_host_get() took. The put_device() below dropped
+ * the reference from class_find_device().
**/
struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)
{
- struct class_device *cdev;
- struct Scsi_Host *shost = ERR_PTR(-ENXIO);
+ struct device *cdev;
+ struct Scsi_Host *shost = NULL;
- cdev = class_find_child(&shost_class, &hostnum, __scsi_host_match);
- if (cdev)
+ cdev = class_find_device(&shost_class, NULL, &hostnum,
+ __scsi_host_match);
+ if (cdev) {
shost = scsi_host_get(class_to_shost(cdev));
-
+ put_device(cdev);
+ }
return shost;
}
EXPORT_SYMBOL(scsi_host_lookup);
int scsi_is_host_device(const struct device *dev)
{
- return dev->release == scsi_host_dev_release;
+ return dev->type == &scsi_host_type;
}
EXPORT_SYMBOL(scsi_is_host_device);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff