diff options
| author | Asias He <asias@redhat.com> | 2013-04-10 09:06:15 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-04-11 10:48:35 +0200 |
| commit | 637ab21e284f4e9188acc2746695f7f6452b4a22 (patch) | |
| tree | a2462717d475c5fac98b4ba0adea38297c30e9d4 /drivers/vhost | |
| parent | tcm_vhost: Fix tv_cmd leak in vhost_scsi_handle_vq (diff) | |
| download | linux-637ab21e284f4e9188acc2746695f7f6452b4a22.tar.xz linux-637ab21e284f4e9188acc2746695f7f6452b4a22.zip | |
tcm_vhost: Add vhost_scsi_send_bad_target() helper
Share the send bad target code with other use cases.
Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/tcm_vhost.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c index 210d59e222fc..1bb0fb4950d1 100644 --- a/drivers/vhost/tcm_vhost.c +++ b/drivers/vhost/tcm_vhost.c @@ -578,6 +578,23 @@ static void tcm_vhost_submission_work(struct work_struct *work) } } +static void vhost_scsi_send_bad_target(struct vhost_scsi *vs, + struct vhost_virtqueue *vq, int head, unsigned out) +{ + struct virtio_scsi_cmd_resp __user *resp; + struct virtio_scsi_cmd_resp rsp; + int ret; + + memset(&rsp, 0, sizeof(rsp)); + rsp.response = VIRTIO_SCSI_S_BAD_TARGET; + resp = vq->iov[out].iov_base; + ret = __copy_to_user(resp, &rsp, sizeof(rsp)); + if (!ret) + vhost_add_used_and_signal(&vs->dev, vq, head, 0); + else + pr_err("Faulted on virtio_scsi_cmd_resp\n"); +} + static void vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) { @@ -673,19 +690,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs, /* Target does not exist, fail the request */ if (unlikely(!tv_tpg)) { - struct virtio_scsi_cmd_resp __user *resp; - struct virtio_scsi_cmd_resp rsp; - - memset(&rsp, 0, sizeof(rsp)); - rsp.response = VIRTIO_SCSI_S_BAD_TARGET; - resp = vq->iov[out].iov_base; - ret = __copy_to_user(resp, &rsp, sizeof(rsp)); - if (!ret) - vhost_add_used_and_signal(&vs->dev, - vq, head, 0); - else - pr_err("Faulted on virtio_scsi_cmd_resp\n"); - + vhost_scsi_send_bad_target(vs, vq, head, out); continue; } |