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path: root/drivers/scsi/scsi_scan.c
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Diffstat (limited to 'drivers/scsi/scsi_scan.c')
-rw-r--r--drivers/scsi/scsi_scan.c34
1 files changed, 11 insertions, 23 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 2e5fe584aad..56a93794c47 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -147,7 +147,7 @@ int scsi_complete_async_scans(void)
do {
if (list_empty(&scanning_hosts))
- goto out;
+ return 0;
/* If we can't get memory immediately, that's OK. Just
* sleep a little. Even if we never get memory, the async
* scans will finish eventually.
@@ -179,26 +179,11 @@ int scsi_complete_async_scans(void)
}
done:
spin_unlock(&async_scan_lock);
- kfree(data);
-
- out:
- async_synchronize_full_domain(&scsi_sd_probe_domain);
+ kfree(data);
return 0;
}
-/* Only exported for the benefit of scsi_wait_scan */
-EXPORT_SYMBOL_GPL(scsi_complete_async_scans);
-
-#ifndef MODULE
-/*
- * For async scanning we need to wait for all the scans to complete before
- * trying to mount the root fs. Otherwise non-modular drivers may not be ready
- * yet.
- */
-late_initcall(scsi_complete_async_scans);
-#endif
-
/**
* scsi_unlock_floptical - unlock device via a special MODE SENSE command
* @sdev: scsi device to send command to
@@ -1717,6 +1702,9 @@ static void scsi_sysfs_add_devices(struct Scsi_Host *shost)
{
struct scsi_device *sdev;
shost_for_each_device(sdev, shost) {
+ /* target removed before the device could be added */
+ if (sdev->sdev_state == SDEV_DEL)
+ continue;
if (!scsi_host_scan_allowed(shost) ||
scsi_sysfs_add_sdev(sdev) != 0)
__scsi_remove_device(sdev);
@@ -1842,14 +1830,13 @@ static void do_scsi_scan_host(struct Scsi_Host *shost)
}
}
-static int do_scan_async(void *_data)
+static void do_scan_async(void *_data, async_cookie_t c)
{
struct async_scan_data *data = _data;
struct Scsi_Host *shost = data->shost;
do_scsi_scan_host(shost);
scsi_finish_async_scan(data);
- return 0;
}
/**
@@ -1858,7 +1845,6 @@ static int do_scan_async(void *_data)
**/
void scsi_scan_host(struct Scsi_Host *shost)
{
- struct task_struct *p;
struct async_scan_data *data;
if (strncmp(scsi_scan_type, "none", 4) == 0)
@@ -1873,9 +1859,11 @@ void scsi_scan_host(struct Scsi_Host *shost)
return;
}
- p = kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
- if (IS_ERR(p))
- do_scan_async(data);
+ /* register with the async subsystem so wait_for_device_probe()
+ * will flush this work
+ */
+ async_schedule(do_scan_async, data);
+
/* scsi_autopm_put_host(shost) is called in scsi_finish_async_scan() */
}
EXPORT_SYMBOL(scsi_scan_host);