block: make generic_make_request handle arbitrarily sized bios

[cascardo/linux.git] / include / linux / blkdev.h

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index d4068c1..ca778d9 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -268,6 +268,7 @@ struct queue_limits {
        unsigned int            io_min;
        unsigned int            io_opt;
        unsigned int            max_discard_sectors;
+       unsigned int            max_hw_discard_sectors;
        unsigned int            max_write_same_sectors;
        unsigned int            discard_granularity;
        unsigned int            discard_alignment;
@@ -462,6 +463,7 @@ struct request_queue {
 
        struct blk_mq_tag_set   *tag_set;
        struct list_head        tag_set_list;
+       struct bio_set          *bio_split;
 };
 
 #define QUEUE_FLAG_QUEUED      1       /* uses generic tag queueing */
@@ -782,6 +784,8 @@ extern void blk_rq_unprep_clone(struct request *rq);
 extern int blk_insert_cloned_request(struct request_queue *q,
                                     struct request *rq);
 extern void blk_delay_queue(struct request_queue *, unsigned long);
+extern void blk_queue_split(struct request_queue *, struct bio **,
+                           struct bio_set *);
 extern void blk_recount_segments(struct request_queue *, struct bio *);
 extern int scsi_verify_blk_ioctl(struct block_device *, unsigned int);
 extern int scsi_cmd_blk_ioctl(struct block_device *, fmode_t,