#include "blk.h"
-int blk_rq_append_bio(struct request_queue *q, struct request *rq,
- struct bio *bio)
+/*
+ * Append a bio to a passthrough request. Only works can be merged into
+ * the request based on the driver constraints.
+ */
+int blk_rq_append_bio(struct request *rq, struct bio *bio)
{
- if (!rq->bio)
- blk_rq_bio_prep(q, rq, bio);
- else if (!ll_back_merge_fn(q, rq, bio))
- return -EINVAL;
- else {
+ if (!rq->bio) {
+ blk_rq_bio_prep(rq->q, rq, bio);
+ } else {
+ if (!ll_back_merge_fn(rq->q, rq, bio))
+ return -EINVAL;
+
rq->biotail->bi_next = bio;
rq->biotail = bio;
-
rq->__data_len += bio->bi_iter.bi_size;
}
+
return 0;
}
+EXPORT_SYMBOL(blk_rq_append_bio);
static int __blk_rq_unmap_user(struct bio *bio)
{
*/
bio_get(bio);
- ret = blk_rq_append_bio(q, rq, bio);
+ ret = blk_rq_append_bio(rq, bio);
if (ret) {
bio_endio(bio);
__blk_rq_unmap_user(orig_bio);
return PTR_ERR(bio);
if (!reading)
- bio->bi_rw |= REQ_WRITE;
+ bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
if (do_copy)
rq->cmd_flags |= REQ_COPY_USER;
- ret = blk_rq_append_bio(q, rq, bio);
+ ret = blk_rq_append_bio(rq, bio);
if (unlikely(ret)) {
/* request is too big */
bio_put(bio);