struct blkfront_info *info = req->rq_disk->private_data;
unsigned long buffer_mfn;
struct blkif_request *ring_req;
- struct bio *bio;
+ struct req_iterator iter;
struct bio_vec *bvec;
- int idx;
unsigned long id;
unsigned int fsect, lsect;
int ref;
ring_req->operation = BLKIF_OP_WRITE_BARRIER;
ring_req->nr_segments = 0;
- rq_for_each_bio (bio, req) {
- bio_for_each_segment (bvec, bio, idx) {
- BUG_ON(ring_req->nr_segments
- == BLKIF_MAX_SEGMENTS_PER_REQUEST);
- buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
- fsect = bvec->bv_offset >> 9;
- lsect = fsect + (bvec->bv_len >> 9) - 1;
- /* install a grant reference. */
- ref = gnttab_claim_grant_reference(&gref_head);
- BUG_ON(ref == -ENOSPC);
-
- gnttab_grant_foreign_access_ref(
+ rq_for_each_segment(bvec, req, iter) {
+ BUG_ON(ring_req->nr_segments == BLKIF_MAX_SEGMENTS_PER_REQUEST);
+ buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
+ fsect = bvec->bv_offset >> 9;
+ lsect = fsect + (bvec->bv_len >> 9) - 1;
+ /* install a grant reference. */
+ ref = gnttab_claim_grant_reference(&gref_head);
+ BUG_ON(ref == -ENOSPC);
+
+ gnttab_grant_foreign_access_ref(
ref,
info->xbdev->otherend_id,
buffer_mfn,
rq_data_dir(req) );
- info->shadow[id].frame[ring_req->nr_segments] =
+ info->shadow[id].frame[ring_req->nr_segments] =
mfn_to_pfn(buffer_mfn);
- ring_req->seg[ring_req->nr_segments] =
+ ring_req->seg[ring_req->nr_segments] =
(struct blkif_request_segment) {
.gref = ref,
.first_sect = fsect,
.last_sect = lsect };
- ring_req->nr_segments++;
- }
+ ring_req->nr_segments++;
}
info->ring.req_prod_pvt++;
* do_blkif_request
* read a block; request is in a request queue
*/
-static void do_blkif_request(request_queue_t *rq)
+static void do_blkif_request(struct request_queue *rq)
{
struct blkfront_info *info = NULL;
struct request *req;
static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size)
{
- request_queue_t *rq;
+ struct request_queue *rq;
rq = blk_init_queue(do_blkif_request, &blkif_io_lock);
if (rq == NULL)