virtio: wrap config->reset calls
This will enable cleanups down the road. The idea is to disable cbs, then add "flush_queued_cbs" callback as a parameter, this way drivers can flush any work queued after callbacks have been disabled. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20211013105226.20225-1-mst@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
parent
c9e6606c7f
commit
d9679d0013
|
@ -616,7 +616,7 @@ static void um_pci_virtio_remove(struct virtio_device *vdev)
|
|||
int i;
|
||||
|
||||
/* Stop all virtqueues */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
||||
device_set_wakeup_enable(&vdev->dev, false);
|
||||
|
|
|
@ -977,7 +977,7 @@ static void virtblk_remove(struct virtio_device *vdev)
|
|||
mutex_lock(&vblk->vdev_mutex);
|
||||
|
||||
/* Stop all the virtqueues. */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
/* Virtqueues are stopped, nothing can use vblk->vdev anymore. */
|
||||
vblk->vdev = NULL;
|
||||
|
@ -996,7 +996,7 @@ static int virtblk_freeze(struct virtio_device *vdev)
|
|||
struct virtio_blk *vblk = vdev->priv;
|
||||
|
||||
/* Ensure we don't receive any more interrupts */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
/* Make sure no work handler is accessing the device. */
|
||||
flush_work(&vblk->config_work);
|
||||
|
|
|
@ -364,7 +364,7 @@ static void virtbt_remove(struct virtio_device *vdev)
|
|||
struct hci_dev *hdev = vbt->hdev;
|
||||
|
||||
hci_unregister_dev(hdev);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
hci_free_dev(hdev);
|
||||
vbt->hdev = NULL;
|
||||
|
|
|
@ -179,7 +179,7 @@ static void remove_common(struct virtio_device *vdev)
|
|||
vi->data_avail = 0;
|
||||
vi->data_idx = 0;
|
||||
complete(&vi->have_data);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
if (vi->hwrng_register_done)
|
||||
hwrng_unregister(&vi->hwrng);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
|
|
@ -1958,7 +1958,7 @@ static void virtcons_remove(struct virtio_device *vdev)
|
|||
spin_unlock_irq(&pdrvdata_lock);
|
||||
|
||||
/* Disable interrupts for vqs */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
/* Finish up work that's lined up */
|
||||
if (use_multiport(portdev))
|
||||
cancel_work_sync(&portdev->control_work);
|
||||
|
@ -2148,7 +2148,7 @@ static int virtcons_freeze(struct virtio_device *vdev)
|
|||
|
||||
portdev = vdev->priv;
|
||||
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
if (use_multiport(portdev))
|
||||
virtqueue_disable_cb(portdev->c_ivq);
|
||||
|
|
|
@ -404,7 +404,7 @@ static int virtcrypto_probe(struct virtio_device *vdev)
|
|||
free_engines:
|
||||
virtcrypto_clear_crypto_engines(vcrypto);
|
||||
free_vqs:
|
||||
vcrypto->vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtcrypto_del_vqs(vcrypto);
|
||||
free_dev:
|
||||
virtcrypto_devmgr_rm_dev(vcrypto);
|
||||
|
@ -436,7 +436,7 @@ static void virtcrypto_remove(struct virtio_device *vdev)
|
|||
|
||||
if (virtcrypto_dev_started(vcrypto))
|
||||
virtcrypto_dev_stop(vcrypto);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtcrypto_free_unused_reqs(vcrypto);
|
||||
virtcrypto_clear_crypto_engines(vcrypto);
|
||||
virtcrypto_del_vqs(vcrypto);
|
||||
|
@ -456,7 +456,7 @@ static int virtcrypto_freeze(struct virtio_device *vdev)
|
|||
{
|
||||
struct virtio_crypto *vcrypto = vdev->priv;
|
||||
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtcrypto_free_unused_reqs(vcrypto);
|
||||
if (virtcrypto_dev_started(vcrypto))
|
||||
virtcrypto_dev_stop(vcrypto);
|
||||
|
@ -492,7 +492,7 @@ static int virtcrypto_restore(struct virtio_device *vdev)
|
|||
free_engines:
|
||||
virtcrypto_clear_crypto_engines(vcrypto);
|
||||
free_vqs:
|
||||
vcrypto->vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtcrypto_del_vqs(vcrypto);
|
||||
return err;
|
||||
}
|
||||
|
|
|
@ -452,7 +452,7 @@ static void scmi_vio_remove(struct virtio_device *vdev)
|
|||
* outstanding message on any vqueue to be ignored by complete_cb: now
|
||||
* we can just stop processing buffers and destroy the vqueues.
|
||||
*/
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
/* Ensure scmi_vdev is visible as NULL */
|
||||
smp_store_mb(scmi_vdev, NULL);
|
||||
|
|
|
@ -450,7 +450,7 @@ static void virtio_gpio_request_vq(struct virtqueue *vq)
|
|||
|
||||
static void virtio_gpio_free_vqs(struct virtio_device *vdev)
|
||||
{
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
}
|
||||
|
||||
|
|
|
@ -279,7 +279,7 @@ void virtio_gpu_deinit(struct drm_device *dev)
|
|||
flush_work(&vgdev->ctrlq.dequeue_work);
|
||||
flush_work(&vgdev->cursorq.dequeue_work);
|
||||
flush_work(&vgdev->config_changed_work);
|
||||
vgdev->vdev->config->reset(vgdev->vdev);
|
||||
virtio_reset_device(vgdev->vdev);
|
||||
vgdev->vdev->config->del_vqs(vgdev->vdev);
|
||||
}
|
||||
|
||||
|
|
|
@ -165,7 +165,7 @@ err_free:
|
|||
|
||||
static void virtio_i2c_del_vqs(struct virtio_device *vdev)
|
||||
{
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
}
|
||||
|
||||
|
|
|
@ -1115,7 +1115,7 @@ static void viommu_remove(struct virtio_device *vdev)
|
|||
iommu_device_unregister(&viommu->iommu);
|
||||
|
||||
/* Stop all virtqueues */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
||||
dev_info(&vdev->dev, "device removed\n");
|
||||
|
|
|
@ -754,7 +754,7 @@ static void cfv_remove(struct virtio_device *vdev)
|
|||
debugfs_remove_recursive(cfv->debugfs);
|
||||
|
||||
vringh_kiov_cleanup(&cfv->ctx.riov);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->vringh_config->del_vrhs(cfv->vdev);
|
||||
cfv->vr_rx = NULL;
|
||||
vdev->config->del_vqs(cfv->vdev);
|
||||
|
|
|
@ -3310,7 +3310,7 @@ static int virtnet_probe(struct virtio_device *vdev)
|
|||
return 0;
|
||||
|
||||
free_unregister_netdev:
|
||||
vi->vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
unregister_netdev(dev);
|
||||
free_failover:
|
||||
|
@ -3326,7 +3326,7 @@ free:
|
|||
|
||||
static void remove_vq_common(struct virtnet_info *vi)
|
||||
{
|
||||
vi->vdev->config->reset(vi->vdev);
|
||||
virtio_reset_device(vi->vdev);
|
||||
|
||||
/* Free unused buffers in both send and recv, if any. */
|
||||
free_unused_bufs(vi);
|
||||
|
|
|
@ -4498,7 +4498,7 @@ static void remove_vqs(struct virtio_device *vdev)
|
|||
{
|
||||
int i;
|
||||
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(hwsim_vqs); i++) {
|
||||
struct virtqueue *vq = hwsim_vqs[i];
|
||||
|
|
|
@ -105,7 +105,7 @@ static void virtio_pmem_remove(struct virtio_device *vdev)
|
|||
|
||||
nvdimm_bus_unregister(nvdimm_bus);
|
||||
vdev->config->del_vqs(vdev);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
}
|
||||
|
||||
static struct virtio_driver virtio_pmem_driver = {
|
||||
|
|
|
@ -1024,7 +1024,7 @@ static void rpmsg_remove(struct virtio_device *vdev)
|
|||
size_t total_buf_space = vrp->num_bufs * vrp->buf_size;
|
||||
int ret;
|
||||
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
ret = device_for_each_child(&vdev->dev, NULL, rpmsg_remove_device);
|
||||
if (ret)
|
||||
|
|
|
@ -778,7 +778,7 @@ static void virtscsi_init_vq(struct virtio_scsi_vq *virtscsi_vq,
|
|||
static void virtscsi_remove_vqs(struct virtio_device *vdev)
|
||||
{
|
||||
/* Stop all the virtqueues. */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
}
|
||||
|
||||
|
|
|
@ -204,6 +204,12 @@ int virtio_finalize_features(struct virtio_device *dev)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(virtio_finalize_features);
|
||||
|
||||
void virtio_reset_device(struct virtio_device *dev)
|
||||
{
|
||||
dev->config->reset(dev);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(virtio_reset_device);
|
||||
|
||||
static int virtio_dev_probe(struct device *_d)
|
||||
{
|
||||
int err, i;
|
||||
|
|
|
@ -1056,7 +1056,7 @@ static void remove_common(struct virtio_balloon *vb)
|
|||
return_free_pages_to_mm(vb, ULONG_MAX);
|
||||
|
||||
/* Now we reset the device so we can clean up the queues. */
|
||||
vb->vdev->config->reset(vb->vdev);
|
||||
virtio_reset_device(vb->vdev);
|
||||
|
||||
vb->vdev->config->del_vqs(vb->vdev);
|
||||
}
|
||||
|
|
|
@ -347,7 +347,7 @@ static void virtinput_remove(struct virtio_device *vdev)
|
|||
spin_unlock_irqrestore(&vi->lock, flags);
|
||||
|
||||
input_unregister_device(vi->idev);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
while ((buf = virtqueue_detach_unused_buf(vi->sts)) != NULL)
|
||||
kfree(buf);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
|
|
@ -2850,7 +2850,7 @@ static void virtio_mem_remove(struct virtio_device *vdev)
|
|||
virtio_mem_deinit_hotplug(vm);
|
||||
|
||||
/* reset the device and cleanup the queues */
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
||||
kfree(vm);
|
||||
|
|
|
@ -895,7 +895,7 @@ static int virtio_fs_probe(struct virtio_device *vdev)
|
|||
return 0;
|
||||
|
||||
out_vqs:
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtio_fs_cleanup_vqs(vdev, fs);
|
||||
kfree(fs->vqs);
|
||||
|
||||
|
@ -927,7 +927,7 @@ static void virtio_fs_remove(struct virtio_device *vdev)
|
|||
list_del_init(&fs->list);
|
||||
virtio_fs_stop_all_queues(fs);
|
||||
virtio_fs_drain_all_queues_locked(fs);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
virtio_fs_cleanup_vqs(vdev, fs);
|
||||
|
||||
vdev->priv = NULL;
|
||||
|
|
|
@ -138,6 +138,7 @@ int virtio_finalize_features(struct virtio_device *dev);
|
|||
int virtio_device_freeze(struct virtio_device *dev);
|
||||
int virtio_device_restore(struct virtio_device *dev);
|
||||
#endif
|
||||
void virtio_reset_device(struct virtio_device *dev);
|
||||
|
||||
size_t virtio_max_dma_size(struct virtio_device *vdev);
|
||||
|
||||
|
|
|
@ -721,7 +721,7 @@ static void p9_virtio_remove(struct virtio_device *vdev)
|
|||
|
||||
mutex_unlock(&virtio_9p_lock);
|
||||
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
vdev->config->del_vqs(vdev);
|
||||
|
||||
sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);
|
||||
|
|
|
@ -665,7 +665,7 @@ static void virtio_vsock_remove(struct virtio_device *vdev)
|
|||
vsock_for_each_connected_socket(virtio_vsock_reset_sock);
|
||||
|
||||
/* Stop all work handlers to make sure no one is accessing the device,
|
||||
* so we can safely call vdev->config->reset().
|
||||
* so we can safely call virtio_reset_device().
|
||||
*/
|
||||
mutex_lock(&vsock->rx_lock);
|
||||
vsock->rx_run = false;
|
||||
|
@ -682,7 +682,7 @@ static void virtio_vsock_remove(struct virtio_device *vdev)
|
|||
/* Flush all device writes and interrupts, device will not use any
|
||||
* more buffers.
|
||||
*/
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
mutex_lock(&vsock->rx_lock);
|
||||
while ((pkt = virtqueue_detach_unused_buf(vsock->vqs[VSOCK_VQ_RX])))
|
||||
|
|
|
@ -350,7 +350,7 @@ static void virtsnd_remove(struct virtio_device *vdev)
|
|||
snd_card_free(snd->card);
|
||||
|
||||
vdev->config->del_vqs(vdev);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
for (i = 0; snd->substreams && i < snd->nsubstreams; ++i) {
|
||||
struct virtio_pcm_substream *vss = &snd->substreams[i];
|
||||
|
@ -379,7 +379,7 @@ static int virtsnd_freeze(struct virtio_device *vdev)
|
|||
virtsnd_ctl_msg_cancel_all(snd);
|
||||
|
||||
vdev->config->del_vqs(vdev);
|
||||
vdev->config->reset(vdev);
|
||||
virtio_reset_device(vdev);
|
||||
|
||||
for (i = 0; i < snd->nsubstreams; ++i)
|
||||
cancel_work_sync(&snd->substreams[i].elapsed_period);
|
||||
|
|
Loading…
Reference in New Issue