github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

vhost-scsi: preserve event ordering

Browse Source 
vhost_scsi_send_evt() uses llist_add(), so pending events are LIFO.
vhost_scsi_complete_events() walks the detached list directly.
This can deliver a later hotplug or hotunplug event before an earlier
one.

Reverse the detached list before processing it.
This keeps delivery in enqueue order.

Fixes: a6c9af8736 ("tcm_vhost: Add hotplug/hotunplug support")
Signed-off-by: Jia Jia <physicalmtea@gmail.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260915094244.7900-2-physicalmtea@gmail.com>
This commit is contained in:
Jia Jia 2026-09-15 17:42:43 +08:00 committed by Michael S. Tsirkin
parent acbf36deb5
commit a9a428115b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/vhost/scsi.c
View File

@ -667,7 +667,7 @@ static void vhost_scsi_complete_events(struct vhost_scsi *vs, bool drop)
struct llist_node *llnode;
mutex_lock(&vq->mutex);
llnode = llist_del_all(&vs->vs_event_list);
llnode = llist_reverse_order(llist_del_all(&vs->vs_event_list));
llist_for_each_entry_safe(evt, t, llnode, list) {
if (!drop)
vhost_scsi_do_evt_work(vs, evt);