diff mbox series

[2/5] vhost-scsi: Drop vhost_scsi_flush during endpoint clearing

Message ID 20230223001949.2884-3-michael.christie@oracle.com (mailing list archive)
State Not Applicable
Headers show
Series vhost-scsi: Fix management operation hangs | expand

Commit Message

Mike Christie Feb. 23, 2023, 12:19 a.m. UTC 
We don't need to run vhost_scsi_flush at the end of
vhost_scsi_clear_endpoint, because a couple lines before this code
if there are any tpgs in vs_tpg we take every vq mutex and clear the vq
backend so know there will be no new IOs accessing the vs_tpg. And after
we clear the backend we run vhost_scsi_flush already so we know there are
no running cmds accessing the vs_tpg.

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

Patch

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index c31659aa5466..502d64b53d9c 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1746,11 +1746,7 @@  vhost_scsi_clear_endpoint(struct vhost_scsi *vs,
 			vhost_scsi_destroy_vq_cmds(vq);
 		}
 	}
-	/*
-	 * Act as synchronize_rcu to make sure access to
-	 * old vs->vs_tpg is finished.
-	 */
-	vhost_scsi_flush(vs);
+
 	kfree(vs->vs_tpg);
 	vs->vs_tpg = NULL;
 	WARN_ON(vs->vs_events_nr);