void init_request_from_bio(struct request *req, struct bio *bio);
void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
struct bio *bio);
+int blk_rq_append_bio(struct request_queue *q, struct request *rq,
+ struct bio *bio);
+void blk_dequeue_request(struct request *rq);
void __blk_queue_free_tags(struct request_queue *q);
void blk_unplug_work(struct work_struct *work);
int attempt_back_merge(struct request_queue *q, struct request *rq);
int attempt_front_merge(struct request_queue *q, struct request *rq);
void blk_recalc_rq_segments(struct request *rq);
-void blk_recalc_rq_sectors(struct request *rq, int nsect);
+void blk_rq_set_mixed_merge(struct request *rq);
void blk_queue_congestion_threshold(struct request_queue *q);
*
* a) it's attached to a gendisk, and
* b) the queue had IO stats enabled when this request was started, and
- * c) it's a file system request
+ * c) it's a file system request or a discard request
*/
static inline int blk_do_io_stat(struct request *rq)
{
- return rq->rq_disk && blk_rq_io_stat(rq) && blk_fs_request(rq) &&
- blk_discard_rq(rq);
+ return rq->rq_disk && blk_rq_io_stat(rq) &&
+ (blk_fs_request(rq) || blk_discard_rq(rq));
}
#endif