diff options
| author |   Mike Christie <michael.christie@oracle.com> | 2023-03-20 21:06:23 -0500 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2023-04-21 03:02:30 -0400 |
| commit | f5ed6f9e82ee62bf805551522dfa2d6c8030bb47 (patch) | |
| tree | 6d7509f9dcaad1a32e1372cc846fbac96d4839b5 /include/linux/vdpa.h | |
| parent | vhost-scsi: Check for a cleared backend before queueing an event (diff) | |
| download | wireguard-linux-f5ed6f9e82ee62bf805551522dfa2d6c8030bb47.tar.xz wireguard-linux-f5ed6f9e82ee62bf805551522dfa2d6c8030bb47.zip | |
vhost-scsi: Drop vhost_scsi_mutex use in port callouts
We are using the vhost_scsi_mutex to make sure vhost_scsi_port_link and
vhost_scsi_port_unlink see if vhost_scsi_clear_endpoint has cleared
tpg->vhost_scsi and it can't be freed while they are using.
However, we currently set the tpg->vhost_scsi pointer while holding
tv_tpg_mutex. So, we can just hold that while calling
vhost_scsi_hotplug/hotunplug. We then don't need to hold the
vhost_scsi_mutex while vhost_scsi_clear_endpoint is holding it and doing
a flush which could cause the LUN map/unmap to have to wait on another
device's flush.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20230321020624.13323-7-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/linux/vdpa.h')
0 files changed, 0 insertions, 0 deletions