fastboot: make scsi probes asynchronous
This patch makes part of the scsi probe (which is mostly device spin up and the
partition scan) asynchronous. Only the part that runs after getting the device
number allocated is asynchronous, ensuring that device numbering remains stable.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 18486b5..17914a3 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -32,6 +32,7 @@
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/spinlock.h>
+#include <linux/async.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -179,6 +180,8 @@
spin_unlock(&async_scan_lock);
kfree(data);
+ /* Synchronize async operations globally */
+ async_synchronize_full();
return 0;
}