diff options
Diffstat (limited to 'hw/block/virtio-blk.c')
-rw-r--r-- | hw/block/virtio-blk.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 11bedff6d6..c427698fcb 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -29,15 +29,13 @@ #include "hw/virtio/virtio-bus.h" #include "hw/virtio/virtio-access.h" -VirtIOBlockReq *virtio_blk_alloc_request(VirtIOBlock *s) +void virtio_blk_init_request(VirtIOBlock *s, VirtIOBlockReq *req) { - VirtIOBlockReq *req = g_new(VirtIOBlockReq, 1); req->dev = s; req->qiov.size = 0; req->in_len = 0; req->next = NULL; req->mr_next = NULL; - return req; } void virtio_blk_free_request(VirtIOBlockReq *req) @@ -193,13 +191,11 @@ out: static VirtIOBlockReq *virtio_blk_get_request(VirtIOBlock *s) { - VirtIOBlockReq *req = virtio_blk_alloc_request(s); + VirtIOBlockReq *req = virtqueue_pop(s->vq, sizeof(VirtIOBlockReq)); - if (!virtqueue_pop(s->vq, &req->elem)) { - virtio_blk_free_request(req); - return NULL; + if (req) { + virtio_blk_init_request(s, req); } - return req; } @@ -812,8 +808,7 @@ static void virtio_blk_save_device(VirtIODevice *vdev, QEMUFile *f) while (req) { qemu_put_sbyte(f, 1); - qemu_put_buffer(f, (unsigned char *)&req->elem, - sizeof(VirtQueueElement)); + qemu_put_virtqueue_element(f, &req->elem); req = req->next; } qemu_put_sbyte(f, 0); @@ -836,13 +831,11 @@ static int virtio_blk_load_device(VirtIODevice *vdev, QEMUFile *f, VirtIOBlock *s = VIRTIO_BLK(vdev); while (qemu_get_sbyte(f)) { - VirtIOBlockReq *req = virtio_blk_alloc_request(s); - qemu_get_buffer(f, (unsigned char *)&req->elem, - sizeof(VirtQueueElement)); + VirtIOBlockReq *req; + req = qemu_get_virtqueue_element(f, sizeof(VirtIOBlockReq)); + virtio_blk_init_request(s, req); req->next = s->rq; s->rq = req; - - virtqueue_map(&req->elem); } return 0; |