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| author | Asias He <asias@redhat.com> | 2013-04-10 15:06:16 +0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-04-11 01:48:42 -0700 |
| commit | 055f648c49d948de9452b0f1758869bbbd0097b8 (patch) | |
| tree | 683c374546db82f1413afeea5b1b4fe7cfff59b4 /drivers/vhost | |
| parent | 637ab21e284f4e9188acc2746695f7f6452b4a22 (diff) | |
| download | linux-3.10-055f648c49d948de9452b0f1758869bbbd0097b8.tar.gz linux-3.10-055f648c49d948de9452b0f1758869bbbd0097b8.tar.bz2 linux-3.10-055f648c49d948de9452b0f1758869bbbd0097b8.zip | |
tcm_vhost: Send bad target to guest when cmd fails
Send bad target to guest in case:
1) we can not allocate the cmd
2) fail to submit the cmd
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 | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c index 1bb0fb4950d..957a0b98a5d 100644 --- a/drivers/vhost/tcm_vhost.c +++ b/drivers/vhost/tcm_vhost.c @@ -703,7 +703,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs, if (IS_ERR(tv_cmd)) { vq_err(vq, "vhost_scsi_allocate_cmd failed %ld\n", PTR_ERR(tv_cmd)); - break; + goto err_cmd; } pr_debug("Allocated tv_cmd: %p exp_data_len: %d, data_direction" ": %d\n", tv_cmd, exp_data_len, data_direction); @@ -729,7 +729,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs, " exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n", scsi_command_size(tv_cmd->tvc_cdb), TCM_VHOST_MAX_CDB_SIZE); - goto err; + goto err_free; } tv_cmd->tvc_lun = ((v_req.lun[2] << 8) | v_req.lun[3]) & 0x3FFF; @@ -742,7 +742,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs, data_direction == DMA_TO_DEVICE); if (unlikely(ret)) { vq_err(vq, "Failed to map iov to sgl\n"); - goto err; + goto err_free; } } @@ -765,8 +765,10 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs, mutex_unlock(&vq->mutex); return; -err: +err_free: vhost_scsi_free_cmd(tv_cmd); +err_cmd: + vhost_scsi_send_bad_target(vs, vq, head, out); mutex_unlock(&vq->mutex); } |