diff options
Diffstat (limited to 'drivers/vhost/scsi.c')
-rw-r--r-- | drivers/vhost/scsi.c | 39 |
1 files changed, 7 insertions, 32 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 042caea64007..e68f7d226bc9 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -125,7 +125,6 @@ struct vhost_scsi_tpg { struct se_portal_group se_tpg; /* Pointer back to vhost_scsi, protected by tv_tpg_mutex */ struct vhost_scsi *vhost_scsi; - struct list_head tmf_queue; }; struct vhost_scsi_tport { @@ -206,10 +205,8 @@ struct vhost_scsi { struct vhost_scsi_tmf { struct vhost_work vwork; - struct vhost_scsi_tpg *tpg; struct vhost_scsi *vhost; struct vhost_scsi_virtqueue *svq; - struct list_head queue_entry; struct se_cmd se_cmd; u8 scsi_resp; @@ -352,12 +349,9 @@ static void vhost_scsi_release_cmd_res(struct se_cmd *se_cmd) static void vhost_scsi_release_tmf_res(struct vhost_scsi_tmf *tmf) { - struct vhost_scsi_tpg *tpg = tmf->tpg; struct vhost_scsi_inflight *inflight = tmf->inflight; - mutex_lock(&tpg->tv_tpg_mutex); - list_add_tail(&tpg->tmf_queue, &tmf->queue_entry); - mutex_unlock(&tpg->tv_tpg_mutex); + kfree(tmf); vhost_scsi_put_inflight(inflight); } @@ -1194,19 +1188,11 @@ vhost_scsi_handle_tmf(struct vhost_scsi *vs, struct vhost_scsi_tpg *tpg, goto send_reject; } - mutex_lock(&tpg->tv_tpg_mutex); - if (list_empty(&tpg->tmf_queue)) { - pr_err("Missing reserve TMF. Could not handle LUN RESET.\n"); - mutex_unlock(&tpg->tv_tpg_mutex); + tmf = kzalloc(sizeof(*tmf), GFP_KERNEL); + if (!tmf) goto send_reject; - } - - tmf = list_first_entry(&tpg->tmf_queue, struct vhost_scsi_tmf, - queue_entry); - list_del_init(&tmf->queue_entry); - mutex_unlock(&tpg->tv_tpg_mutex); - tmf->tpg = tpg; + vhost_work_init(&tmf->vwork, vhost_scsi_tmf_resp_work); tmf->vhost = vs; tmf->svq = svq; tmf->resp_iov = vq->iov[vc->out]; @@ -1658,7 +1644,10 @@ undepend: for (i = 0; i < VHOST_SCSI_MAX_TARGET; i++) { tpg = vs_tpg[i]; if (tpg) { + mutex_lock(&tpg->tv_tpg_mutex); + tpg->vhost_scsi = NULL; tpg->tv_tpg_vhost_count--; + mutex_unlock(&tpg->tv_tpg_mutex); target_undepend_item(&tpg->se_tpg.tpg_group.cg_item); } } @@ -2032,19 +2021,11 @@ static int vhost_scsi_port_link(struct se_portal_group *se_tpg, { struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); - struct vhost_scsi_tmf *tmf; - - tmf = kzalloc(sizeof(*tmf), GFP_KERNEL); - if (!tmf) - return -ENOMEM; - INIT_LIST_HEAD(&tmf->queue_entry); - vhost_work_init(&tmf->vwork, vhost_scsi_tmf_resp_work); mutex_lock(&vhost_scsi_mutex); mutex_lock(&tpg->tv_tpg_mutex); tpg->tv_tpg_port_count++; - list_add_tail(&tmf->queue_entry, &tpg->tmf_queue); mutex_unlock(&tpg->tv_tpg_mutex); vhost_scsi_hotplug(tpg, lun); @@ -2059,16 +2040,11 @@ static void vhost_scsi_port_unlink(struct se_portal_group *se_tpg, { struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); - struct vhost_scsi_tmf *tmf; mutex_lock(&vhost_scsi_mutex); mutex_lock(&tpg->tv_tpg_mutex); tpg->tv_tpg_port_count--; - tmf = list_first_entry(&tpg->tmf_queue, struct vhost_scsi_tmf, - queue_entry); - list_del(&tmf->queue_entry); - kfree(tmf); mutex_unlock(&tpg->tv_tpg_mutex); vhost_scsi_hotunplug(tpg, lun); @@ -2329,7 +2305,6 @@ vhost_scsi_make_tpg(struct se_wwn *wwn, const char *name) } mutex_init(&tpg->tv_tpg_mutex); INIT_LIST_HEAD(&tpg->tv_tpg_list); - INIT_LIST_HEAD(&tpg->tmf_queue); tpg->tport = tport; tpg->tport_tpgt = tpgt; |