提交 cad9d207 编写于 作者: L Linus Torvalds

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vhost bugfix from Michael Tsirkin:
 "This includes a single bugfix for vhost-scsi"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost/scsi: fix reuse of &vq->iov[out] in response
...@@ -88,7 +88,7 @@ struct vhost_scsi_cmd { ...@@ -88,7 +88,7 @@ struct vhost_scsi_cmd {
struct scatterlist *tvc_prot_sgl; struct scatterlist *tvc_prot_sgl;
struct page **tvc_upages; struct page **tvc_upages;
/* Pointer to response header iovec */ /* Pointer to response header iovec */
struct iovec *tvc_resp_iov; struct iovec tvc_resp_iov;
/* Pointer to vhost_scsi for our device */ /* Pointer to vhost_scsi for our device */
struct vhost_scsi *tvc_vhost; struct vhost_scsi *tvc_vhost;
/* Pointer to vhost_virtqueue for the cmd */ /* Pointer to vhost_virtqueue for the cmd */
...@@ -547,7 +547,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work) ...@@ -547,7 +547,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
memcpy(v_rsp.sense, cmd->tvc_sense_buf, memcpy(v_rsp.sense, cmd->tvc_sense_buf,
se_cmd->scsi_sense_length); se_cmd->scsi_sense_length);
iov_iter_init(&iov_iter, READ, cmd->tvc_resp_iov, iov_iter_init(&iov_iter, READ, &cmd->tvc_resp_iov,
cmd->tvc_in_iovs, sizeof(v_rsp)); cmd->tvc_in_iovs, sizeof(v_rsp));
ret = copy_to_iter(&v_rsp, sizeof(v_rsp), &iov_iter); ret = copy_to_iter(&v_rsp, sizeof(v_rsp), &iov_iter);
if (likely(ret == sizeof(v_rsp))) { if (likely(ret == sizeof(v_rsp))) {
...@@ -1044,7 +1044,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) ...@@ -1044,7 +1044,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
} }
cmd->tvc_vhost = vs; cmd->tvc_vhost = vs;
cmd->tvc_vq = vq; cmd->tvc_vq = vq;
cmd->tvc_resp_iov = &vq->iov[out]; cmd->tvc_resp_iov = vq->iov[out];
cmd->tvc_in_iovs = in; cmd->tvc_in_iovs = in;
pr_debug("vhost_scsi got command opcode: %#02x, lun: %d\n", pr_debug("vhost_scsi got command opcode: %#02x, lun: %d\n",
......
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