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virtio: find_vqs/del_vqs virtio operations

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This replaces find_vq/del_vq with find_vqs/del_vqs virtio operations,
and updates all drivers. This is needed for MSI support, because MSI
needs to know the total number of vectors upfront.

Signed-off-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Rusty Russell <[email protected]> (+ lguest/9p compile fixes)
This commit is contained in:
Michael S. Tsirkin 2009-06-12 22:16:36 -06:00 • committed by Rusty Russell
commit d2a7ddda9f
10 changed files with 183 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/block/virtio_blk.c
View file

@ -288,7 +288,7 @@ static int virtblk_probe(struct virtio_device *vdev)
sg_init_table(vblk->sg, vblk->sg_elems);
/* We expect one virtqueue, for output. */
vblk->vq = vdev->config->find_vq(vdev, 0, blk_done, "requests");
vblk->vq = virtio_find_single_vq(vdev, blk_done, "requests");
if (IS_ERR(vblk->vq)) {
err = PTR_ERR(vblk->vq);
goto out_free_vblk;
@ -388,7 +388,7 @@ out_put_disk:
out_mempool:
mempool_destroy(vblk->pool);
out_free_vq:
vdev->config->del_vq(vblk->vq);
vdev->config->del_vqs(vdev);
out_free_vblk:
kfree(vblk);
out:
@ -409,7 +409,7 @@ static void virtblk_remove(struct virtio_device *vdev)
blk_cleanup_queue(vblk->disk->queue);
put_disk(vblk->disk);
mempool_destroy(vblk->pool);
vdev->config->del_vq(vblk->vq);
vdev->config->del_vqs(vdev);
kfree(vblk);
}