diff options
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index d531ceeb0d8c..ed83cdb6e67d 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -268,6 +268,7 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work) struct scsi_device *sdev; struct device *parent; struct scsi_target *starget; + struct list_head *this, *tmp; unsigned long flags; sdev = container_of(work, struct scsi_device, ew.work); @@ -282,6 +283,16 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work) list_del(&sdev->starved_entry); spin_unlock_irqrestore(sdev->host->host_lock, flags); + cancel_work_sync(&sdev->event_work); + + list_for_each_safe(this, tmp, &sdev->event_list) { + struct scsi_event *evt; + + evt = list_entry(this, struct scsi_event, node); + list_del(&evt->node); + kfree(evt); + } + if (sdev->request_queue) { sdev->request_queue->queuedata = NULL; /* user context needed to free queue */ @@ -362,12 +373,29 @@ static int scsi_bus_resume(struct device * dev) return err; } +static int scsi_bus_remove(struct device *dev) +{ + struct device_driver *drv = dev->driver; + struct scsi_device *sdev = to_scsi_device(dev); + int err = 0; + + /* reset the prep_fn back to the default since the + * driver may have altered it and it's being removed */ + blk_queue_prep_rq(sdev->request_queue, scsi_prep_fn); + + if (drv && drv->remove) + err = drv->remove(dev); + + return 0; +} + struct bus_type scsi_bus_type = { .name = "scsi", .match = scsi_bus_match, .uevent = scsi_bus_uevent, .suspend = scsi_bus_suspend, .resume = scsi_bus_resume, + .remove = scsi_bus_remove, }; int scsi_sysfs_register(void) @@ -614,6 +642,41 @@ sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR(modalias, S_IRUGO, sdev_show_modalias, NULL); +#define DECLARE_EVT_SHOW(name, Cap_name) \ +static ssize_t \ +sdev_show_evt_##name(struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct scsi_device *sdev = to_scsi_device(dev); \ + int val = test_bit(SDEV_EVT_##Cap_name, sdev->supported_events);\ + return snprintf(buf, 20, "%d\n", val); \ +} + +#define DECLARE_EVT_STORE(name, Cap_name) \ +static ssize_t \ +sdev_store_evt_##name(struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct scsi_device *sdev = to_scsi_device(dev); \ + int val = simple_strtoul(buf, NULL, 0); \ + if (val == 0) \ + clear_bit(SDEV_EVT_##Cap_name, sdev->supported_events); \ + else if (val == 1) \ + set_bit(SDEV_EVT_##Cap_name, sdev->supported_events); \ + else \ + return -EINVAL; \ + return count; \ +} + +#define DECLARE_EVT(name, Cap_name) \ + DECLARE_EVT_SHOW(name, Cap_name) \ + DECLARE_EVT_STORE(name, Cap_name) \ + static DEVICE_ATTR(evt_##name, S_IRUGO, sdev_show_evt_##name, \ + sdev_store_evt_##name); +#define REF_EVT(name) &dev_attr_evt_##name.attr + +DECLARE_EVT(media_change, MEDIA_CHANGE) + /* Default template for device attributes. May NOT be modified */ static struct attribute *scsi_sdev_attrs[] = { &dev_attr_device_blocked.attr, @@ -631,6 +694,7 @@ static struct attribute *scsi_sdev_attrs[] = { &dev_attr_iodone_cnt.attr, &dev_attr_ioerr_cnt.attr, &dev_attr_modalias.attr, + REF_EVT(media_change), NULL }; @@ -954,6 +1018,7 @@ int scsi_sysfs_add_host(struct Scsi_Host *shost) } transport_register_device(&shost->shost_gendev); + transport_configure_device(&shost->shost_gendev); return 0; } |