diff mbox series

[3/5] vhost-scsi: reduce flushes during endpoint clearing

Message ID 20210525174733.6212-4-michael.christie@oracle.com
State New
Headers show
Series None | expand

Commit Message

Mike Christie May 25, 2021, 5:47 p.m. UTC 
vhost_scsi_flush will flush everything, so we can clear the backends then
flush, then destroy. We don't need to flush before each vq destruction
because after the flush we will have made sure there can be no new cmds
started and there are no running cmds.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
 drivers/vhost/scsi.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 2f9633ef26aa..927ebc52d822 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1747,11 +1747,12 @@  vhost_scsi_clear_endpoint(struct vhost_scsi *vs,
 			mutex_lock(&vq->mutex);
 			vhost_vq_set_backend(vq, NULL);
 			mutex_unlock(&vq->mutex);
-			/*
-			 * Make sure cmds are not running before tearing them
-			 * down.
-			 */
-			vhost_scsi_flush(vs);
+		}
+		/* Make sure cmds are not running before tearing them down. */
+		vhost_scsi_flush(vs);
+
+		for (i = 0; i < VHOST_SCSI_MAX_VQ; i++) {
+			vq = &vs->vqs[i].vq;
 			vhost_scsi_destroy_vq_cmds(vq);
 		}
 	}