Quiescing LUNs falls outside the scope of a shutdown callback. The shutdown
callback is called from inside the reboot() system call and the reboot()
system call is called after user space has stopped accessing block devices.
Hence this patch that removes the quiescing calls from
ufshcd_wl_shutdown(). This patch makes shutdown faster since multiple
synchronize_rcu() calls are removed.
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/scsi/ufs/ufshcd.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a48362165672..ae08c7964f2d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9212,9 +9212,7 @@ static int ufshcd_wl_resume(struct device *dev)
static void ufshcd_wl_shutdown(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
- struct ufs_hba *hba;
-
- hba = shost_priv(sdev->host);
+ struct ufs_hba *hba = shost_priv(sdev->host);
down(&hba->host_sem);
hba->shutting_down = true;
@@ -9222,12 +9220,6 @@ static void ufshcd_wl_shutdown(struct device *dev)
/* Turn on everything while shutting down */
ufshcd_rpm_get_sync(hba);
- scsi_device_quiesce(sdev);
- shost_for_each_device(sdev, hba->host) {
- if (sdev == hba->sdev_ufs_device)
- continue;
- scsi_device_quiesce(sdev);
- }
__ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM);
}
