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

Pull virtio updates from Michael Tsirkin:

 - A huge patchset supporting vq resize using the new vq reset
   capability

 - Features, fixes, and cleanups all over the place

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (88 commits)
  vdpa/mlx5: Fix possible uninitialized return value
  vdpa_sim_blk: add support for discard and write-zeroes
  vdpa_sim_blk: add support for VIRTIO_BLK_T_FLUSH
  vdpa_sim_blk: make vdpasim_blk_check_range usable by other requests
  vdpa_sim_blk: check if sector is 0 for commands other than read or write
  vdpa_sim: Implement suspend vdpa op
  vhost-vdpa: uAPI to suspend the device
  vhost-vdpa: introduce SUSPEND backend feature bit
  vdpa: Add suspend operation
  virtio-blk: Avoid use-after-free on suspend/resume
  virtio_vdpa: support the arg sizes of find_vqs()
  vhost-vdpa: Call ida_simple_remove() when failed
  vDPA: fix 'cast to restricted le16' warnings in vdpa.c
  vDPA: !FEATURES_OK should not block querying device config space
  vDPA/ifcvf: support userspace to query features and MQ of a management device
  vDPA/ifcvf: get_config_size should return a value no greater than dev implementation
  vhost scsi: Allow user to control num virtqueues
  vhost-scsi: Fix max number of virtqueues
  vdpa/mlx5: Support different address spaces for control and data
  vdpa/mlx5: Implement susupend virtqueue callback
  ...

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/nvdimm/virtio_pmem.c b/drivers/nvdimm/virtio_pmem.c
index 995b6cdc67ed..20da455d2ef6 100644
--- a/drivers/nvdimm/virtio_pmem.c
+++ b/drivers/nvdimm/virtio_pmem.c
@@ -81,17 +81,24 @@ static int virtio_pmem_probe(struct virtio_device *vdev)
 	ndr_desc.res = &res;
 	ndr_desc.numa_node = nid;
 	ndr_desc.flush = async_pmem_flush;
+	ndr_desc.provider_data = vdev;
 	set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);
 	set_bit(ND_REGION_ASYNC, &ndr_desc.flags);
+	/*
+	 * The NVDIMM region could be available before the
+	 * virtio_device_ready() that is called by
+	 * virtio_dev_probe(), so we set device ready here.
+	 */
+	virtio_device_ready(vdev);
 	nd_region = nvdimm_pmem_region_create(vpmem->nvdimm_bus, &ndr_desc);
 	if (!nd_region) {
 		dev_err(&vdev->dev, "failed to create nvdimm region\n");
 		err = -ENXIO;
 		goto out_nd;
 	}
-	nd_region->provider_data = dev_to_virtio(nd_region->dev.parent->parent);
 	return 0;
 out_nd:
+	virtio_reset_device(vdev);
 	nvdimm_bus_unregister(vpmem->nvdimm_bus);
 out_vq:
 	vdev->config->del_vqs(vdev);