vhost/scsi: Don't reinvent the wheel but use existing llist API

Although llist provides proper APIs, they are not used. Make them used.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index fd6c8b66f06fd97734bfdad5917c7f65de70265d..679f8960db4b783400ff17932da2885c0332c9a5 100644 (file)
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -496,14 +496,12 @@ static void vhost_scsi_evt_work(struct vhost_work *work)
        struct vhost_scsi *vs = container_of(work, struct vhost_scsi,
                                        vs_event_work);
        struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;
-       struct vhost_scsi_evt *evt;
+       struct vhost_scsi_evt *evt, *t;
        struct llist_node *llnode;
 
        mutex_lock(&vq->mutex);
        llnode = llist_del_all(&vs->vs_event_list);
-       while (llnode) {
-               evt = llist_entry(llnode, struct vhost_scsi_evt, list);
-               llnode = llist_next(llnode);
+       llist_for_each_entry_safe(evt, t, llnode, list) {
                vhost_scsi_do_evt_work(vs, evt);
                vhost_scsi_free_evt(vs, evt);
        }
@@ -529,10 +527,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
 
        bitmap_zero(signal, VHOST_SCSI_MAX_VQ);
        llnode = llist_del_all(&vs->vs_completion_list);
-       while (llnode) {
-               cmd = llist_entry(llnode, struct vhost_scsi_cmd,
-                                    tvc_completion_list);
-               llnode = llist_next(llnode);
+       llist_for_each_entry(cmd, llnode, tvc_completion_list) {
                se_cmd = &cmd->tvc_se_cmd;
 
                pr_debug("%s tv_cmd %p resid %u status %#02x\n", __func__,