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-rw-r--r--include/linux/blkdev.h140
1 files changed, 70 insertions, 70 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 695e34964cb7..4be37de02052 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -37,7 +37,6 @@
37struct scsi_ioctl_command; 37struct scsi_ioctl_command;
38 38
39struct request_queue; 39struct request_queue;
40typedef struct request_queue request_queue_t;
41struct elevator_queue; 40struct elevator_queue;
42typedef struct elevator_queue elevator_t; 41typedef struct elevator_queue elevator_t;
43struct request_pm_state; 42struct request_pm_state;
@@ -233,7 +232,7 @@ struct request {
233 struct list_head queuelist; 232 struct list_head queuelist;
234 struct list_head donelist; 233 struct list_head donelist;
235 234
236 request_queue_t *q; 235 struct request_queue *q;
237 236
238 unsigned int cmd_flags; 237 unsigned int cmd_flags;
239 enum rq_cmd_type_bits cmd_type; 238 enum rq_cmd_type_bits cmd_type;
@@ -337,15 +336,15 @@ struct request_pm_state
337 336
338#include <linux/elevator.h> 337#include <linux/elevator.h>
339 338
340typedef void (request_fn_proc) (request_queue_t *q); 339typedef void (request_fn_proc) (struct request_queue *q);
341typedef int (make_request_fn) (request_queue_t *q, struct bio *bio); 340typedef int (make_request_fn) (struct request_queue *q, struct bio *bio);
342typedef int (prep_rq_fn) (request_queue_t *, struct request *); 341typedef int (prep_rq_fn) (struct request_queue *, struct request *);
343typedef void (unplug_fn) (request_queue_t *); 342typedef void (unplug_fn) (struct request_queue *);
344 343
345struct bio_vec; 344struct bio_vec;
346typedef int (merge_bvec_fn) (request_queue_t *, struct bio *, struct bio_vec *); 345typedef int (merge_bvec_fn) (struct request_queue *, struct bio *, struct bio_vec *);
347typedef int (issue_flush_fn) (request_queue_t *, struct gendisk *, sector_t *); 346typedef int (issue_flush_fn) (struct request_queue *, struct gendisk *, sector_t *);
348typedef void (prepare_flush_fn) (request_queue_t *, struct request *); 347typedef void (prepare_flush_fn) (struct request_queue *, struct request *);
349typedef void (softirq_done_fn)(struct request *); 348typedef void (softirq_done_fn)(struct request *);
350 349
351enum blk_queue_state { 350enum blk_queue_state {
@@ -626,13 +625,13 @@ extern unsigned long blk_max_low_pfn, blk_max_pfn;
626 625
627#ifdef CONFIG_BOUNCE 626#ifdef CONFIG_BOUNCE
628extern int init_emergency_isa_pool(void); 627extern int init_emergency_isa_pool(void);
629extern void blk_queue_bounce(request_queue_t *q, struct bio **bio); 628extern void blk_queue_bounce(struct request_queue *q, struct bio **bio);
630#else 629#else
631static inline int init_emergency_isa_pool(void) 630static inline int init_emergency_isa_pool(void)
632{ 631{
633 return 0; 632 return 0;
634} 633}
635static inline void blk_queue_bounce(request_queue_t *q, struct bio **bio) 634static inline void blk_queue_bounce(struct request_queue *q, struct bio **bio)
636{ 635{
637} 636}
638#endif /* CONFIG_MMU */ 637#endif /* CONFIG_MMU */
@@ -646,14 +645,14 @@ extern void blk_unregister_queue(struct gendisk *disk);
646extern void register_disk(struct gendisk *dev); 645extern void register_disk(struct gendisk *dev);
647extern void generic_make_request(struct bio *bio); 646extern void generic_make_request(struct bio *bio);
648extern void blk_put_request(struct request *); 647extern void blk_put_request(struct request *);
649extern void __blk_put_request(request_queue_t *, struct request *); 648extern void __blk_put_request(struct request_queue *, struct request *);
650extern void blk_end_sync_rq(struct request *rq, int error); 649extern void blk_end_sync_rq(struct request *rq, int error);
651extern struct request *blk_get_request(request_queue_t *, int, gfp_t); 650extern struct request *blk_get_request(struct request_queue *, int, gfp_t);
652extern void blk_insert_request(request_queue_t *, struct request *, int, void *); 651extern void blk_insert_request(struct request_queue *, struct request *, int, void *);
653extern void blk_requeue_request(request_queue_t *, struct request *); 652extern void blk_requeue_request(struct request_queue *, struct request *);
654extern void blk_plug_device(request_queue_t *); 653extern void blk_plug_device(struct request_queue *);
655extern int blk_remove_plug(request_queue_t *); 654extern int blk_remove_plug(struct request_queue *);
656extern void blk_recount_segments(request_queue_t *, struct bio *); 655extern void blk_recount_segments(struct request_queue *, struct bio *);
657extern int scsi_cmd_ioctl(struct file *, struct request_queue *, 656extern int scsi_cmd_ioctl(struct file *, struct request_queue *,
658 struct gendisk *, unsigned int, void __user *); 657 struct gendisk *, unsigned int, void __user *);
659extern int sg_scsi_ioctl(struct file *, struct request_queue *, 658extern int sg_scsi_ioctl(struct file *, struct request_queue *,
@@ -662,14 +661,15 @@ extern int sg_scsi_ioctl(struct file *, struct request_queue *,
662/* 661/*
663 * Temporary export, until SCSI gets fixed up. 662 * Temporary export, until SCSI gets fixed up.
664 */ 663 */
665extern int ll_back_merge_fn(request_queue_t *, struct request *, struct bio *); 664extern int ll_back_merge_fn(struct request_queue *, struct request *,
665 struct bio *);
666 666
667/* 667/*
668 * A queue has just exitted congestion. Note this in the global counter of 668 * A queue has just exitted congestion. Note this in the global counter of
669 * congested queues, and wake up anyone who was waiting for requests to be 669 * congested queues, and wake up anyone who was waiting for requests to be
670 * put back. 670 * put back.
671 */ 671 */
672static inline void blk_clear_queue_congested(request_queue_t *q, int rw) 672static inline void blk_clear_queue_congested(struct request_queue *q, int rw)
673{ 673{
674 clear_bdi_congested(&q->backing_dev_info, rw); 674 clear_bdi_congested(&q->backing_dev_info, rw);
675} 675}
@@ -678,29 +678,29 @@ static inline void blk_clear_queue_congested(request_queue_t *q, int rw)
678 * A queue has just entered congestion. Flag that in the queue's VM-visible 678 * A queue has just entered congestion. Flag that in the queue's VM-visible
679 * state flags and increment the global gounter of congested queues. 679 * state flags and increment the global gounter of congested queues.
680 */ 680 */
681static inline void blk_set_queue_congested(request_queue_t *q, int rw) 681static inline void blk_set_queue_congested(struct request_queue *q, int rw)
682{ 682{
683 set_bdi_congested(&q->backing_dev_info, rw); 683 set_bdi_congested(&q->backing_dev_info, rw);
684} 684}
685 685
686extern void blk_start_queue(request_queue_t *q); 686extern void blk_start_queue(struct request_queue *q);
687extern void blk_stop_queue(request_queue_t *q); 687extern void blk_stop_queue(struct request_queue *q);
688extern void blk_sync_queue(struct request_queue *q); 688extern void blk_sync_queue(struct request_queue *q);
689extern void __blk_stop_queue(request_queue_t *q); 689extern void __blk_stop_queue(struct request_queue *q);
690extern void blk_run_queue(request_queue_t *); 690extern void blk_run_queue(struct request_queue *);
691extern void blk_start_queueing(request_queue_t *); 691extern void blk_start_queueing(struct request_queue *);
692extern int blk_rq_map_user(request_queue_t *, struct request *, void __user *, unsigned long); 692extern int blk_rq_map_user(struct request_queue *, struct request *, void __user *, unsigned long);
693extern int blk_rq_unmap_user(struct bio *); 693extern int blk_rq_unmap_user(struct bio *);
694extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned int, gfp_t); 694extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
695extern int blk_rq_map_user_iov(request_queue_t *, struct request *, 695extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
696 struct sg_iovec *, int, unsigned int); 696 struct sg_iovec *, int, unsigned int);
697extern int blk_execute_rq(request_queue_t *, struct gendisk *, 697extern int blk_execute_rq(struct request_queue *, struct gendisk *,
698 struct request *, int); 698 struct request *, int);
699extern void blk_execute_rq_nowait(request_queue_t *, struct gendisk *, 699extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
700 struct request *, int, rq_end_io_fn *); 700 struct request *, int, rq_end_io_fn *);
701extern int blk_verify_command(unsigned char *, int); 701extern int blk_verify_command(unsigned char *, int);
702 702
703static inline request_queue_t *bdev_get_queue(struct block_device *bdev) 703static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
704{ 704{
705 return bdev->bd_disk->queue; 705 return bdev->bd_disk->queue;
706} 706}
@@ -749,41 +749,41 @@ static inline void blkdev_dequeue_request(struct request *req)
749/* 749/*
750 * Access functions for manipulating queue properties 750 * Access functions for manipulating queue properties
751 */ 751 */
752extern request_queue_t *blk_init_queue_node(request_fn_proc *rfn, 752extern struct request_queue *blk_init_queue_node(request_fn_proc *rfn,
753 spinlock_t *lock, int node_id); 753 spinlock_t *lock, int node_id);
754extern request_queue_t *blk_init_queue(request_fn_proc *, spinlock_t *); 754extern struct request_queue *blk_init_queue(request_fn_proc *, spinlock_t *);
755extern void blk_cleanup_queue(request_queue_t *); 755extern void blk_cleanup_queue(struct request_queue *);
756extern void blk_queue_make_request(request_queue_t *, make_request_fn *); 756extern void blk_queue_make_request(struct request_queue *, make_request_fn *);
757extern void blk_queue_bounce_limit(request_queue_t *, u64); 757extern void blk_queue_bounce_limit(struct request_queue *, u64);
758extern void blk_queue_max_sectors(request_queue_t *, unsigned int); 758extern void blk_queue_max_sectors(struct request_queue *, unsigned int);
759extern void blk_queue_max_phys_segments(request_queue_t *, unsigned short); 759extern void blk_queue_max_phys_segments(struct request_queue *, unsigned short);
760extern void blk_queue_max_hw_segments(request_queue_t *, unsigned short); 760extern void blk_queue_max_hw_segments(struct request_queue *, unsigned short);
761extern void blk_queue_max_segment_size(request_queue_t *, unsigned int); 761extern void blk_queue_max_segment_size(struct request_queue *, unsigned int);
762extern void blk_queue_hardsect_size(request_queue_t *, unsigned short); 762extern void blk_queue_hardsect_size(struct request_queue *, unsigned short);
763extern void blk_queue_stack_limits(request_queue_t *t, request_queue_t *b); 763extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b);
764extern void blk_queue_segment_boundary(request_queue_t *, unsigned long); 764extern void blk_queue_segment_boundary(struct request_queue *, unsigned long);
765extern void blk_queue_prep_rq(request_queue_t *, prep_rq_fn *pfn); 765extern void blk_queue_prep_rq(struct request_queue *, prep_rq_fn *pfn);
766extern void blk_queue_merge_bvec(request_queue_t *, merge_bvec_fn *); 766extern void blk_queue_merge_bvec(struct request_queue *, merge_bvec_fn *);
767extern void blk_queue_dma_alignment(request_queue_t *, int); 767extern void blk_queue_dma_alignment(struct request_queue *, int);
768extern void blk_queue_softirq_done(request_queue_t *, softirq_done_fn *); 768extern void blk_queue_softirq_done(struct request_queue *, softirq_done_fn *);
769extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev); 769extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);
770extern int blk_queue_ordered(request_queue_t *, unsigned, prepare_flush_fn *); 770extern int blk_queue_ordered(struct request_queue *, unsigned, prepare_flush_fn *);
771extern void blk_queue_issue_flush_fn(request_queue_t *, issue_flush_fn *); 771extern void blk_queue_issue_flush_fn(struct request_queue *, issue_flush_fn *);
772extern int blk_do_ordered(request_queue_t *, struct request **); 772extern int blk_do_ordered(struct request_queue *, struct request **);
773extern unsigned blk_ordered_cur_seq(request_queue_t *); 773extern unsigned blk_ordered_cur_seq(struct request_queue *);
774extern unsigned blk_ordered_req_seq(struct request *); 774extern unsigned blk_ordered_req_seq(struct request *);
775extern void blk_ordered_complete_seq(request_queue_t *, unsigned, int); 775extern void blk_ordered_complete_seq(struct request_queue *, unsigned, int);
776 776
777extern int blk_rq_map_sg(request_queue_t *, struct request *, struct scatterlist *); 777extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *);
778extern void blk_dump_rq_flags(struct request *, char *); 778extern void blk_dump_rq_flags(struct request *, char *);
779extern void generic_unplug_device(request_queue_t *); 779extern void generic_unplug_device(struct request_queue *);
780extern void __generic_unplug_device(request_queue_t *); 780extern void __generic_unplug_device(struct request_queue *);
781extern long nr_blockdev_pages(void); 781extern long nr_blockdev_pages(void);
782 782
783int blk_get_queue(request_queue_t *); 783int blk_get_queue(struct request_queue *);
784request_queue_t *blk_alloc_queue(gfp_t); 784struct request_queue *blk_alloc_queue(gfp_t);
785request_queue_t *blk_alloc_queue_node(gfp_t, int); 785struct request_queue *blk_alloc_queue_node(gfp_t, int);
786extern void blk_put_queue(request_queue_t *); 786extern void blk_put_queue(struct request_queue *);
787 787
788/* 788/*
789 * tag stuff 789 * tag stuff
@@ -791,13 +791,13 @@ extern void blk_put_queue(request_queue_t *);
791#define blk_queue_tag_depth(q) ((q)->queue_tags->busy) 791#define blk_queue_tag_depth(q) ((q)->queue_tags->busy)
792#define blk_queue_tag_queue(q) ((q)->queue_tags->busy < (q)->queue_tags->max_depth) 792#define blk_queue_tag_queue(q) ((q)->queue_tags->busy < (q)->queue_tags->max_depth)
793#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED) 793#define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED)
794extern int blk_queue_start_tag(request_queue_t *, struct request *); 794extern int blk_queue_start_tag(struct request_queue *, struct request *);
795extern struct request *blk_queue_find_tag(request_queue_t *, int); 795extern struct request *blk_queue_find_tag(struct request_queue *, int);
796extern void blk_queue_end_tag(request_queue_t *, struct request *); 796extern void blk_queue_end_tag(struct request_queue *, struct request *);
797extern int blk_queue_init_tags(request_queue_t *, int, struct blk_queue_tag *); 797extern int blk_queue_init_tags(struct request_queue *, int, struct blk_queue_tag *);
798extern void blk_queue_free_tags(request_queue_t *); 798extern void blk_queue_free_tags(struct request_queue *);
799extern int blk_queue_resize_tags(request_queue_t *, int); 799extern int blk_queue_resize_tags(struct request_queue *, int);
800extern void blk_queue_invalidate_tags(request_queue_t *); 800extern void blk_queue_invalidate_tags(struct request_queue *);
801extern struct blk_queue_tag *blk_init_tags(int); 801extern struct blk_queue_tag *blk_init_tags(int);
802extern void blk_free_tags(struct blk_queue_tag *); 802extern void blk_free_tags(struct blk_queue_tag *);
803 803
@@ -809,7 +809,7 @@ static inline struct request *blk_map_queue_find_tag(struct blk_queue_tag *bqt,
809 return bqt->tag_index[tag]; 809 return bqt->tag_index[tag];
810} 810}
811 811
812extern void blk_rq_bio_prep(request_queue_t *, struct request *, struct bio *); 812extern void blk_rq_bio_prep(struct request_queue *, struct request *, struct bio *);
813extern int blkdev_issue_flush(struct block_device *, sector_t *); 813extern int blkdev_issue_flush(struct block_device *, sector_t *);
814 814
815#define MAX_PHYS_SEGMENTS 128 815#define MAX_PHYS_SEGMENTS 128
@@ -821,7 +821,7 @@ extern int blkdev_issue_flush(struct block_device *, sector_t *);
821 821
822#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist) 822#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
823 823
824static inline int queue_hardsect_size(request_queue_t *q) 824static inline int queue_hardsect_size(struct request_queue *q)
825{ 825{
826 int retval = 512; 826 int retval = 512;
827 827
@@ -836,7 +836,7 @@ static inline int bdev_hardsect_size(struct block_device *bdev)
836 return queue_hardsect_size(bdev_get_queue(bdev)); 836 return queue_hardsect_size(bdev_get_queue(bdev));
837} 837}
838 838
839static inline int queue_dma_alignment(request_queue_t *q) 839static inline int queue_dma_alignment(struct request_queue *q)
840{ 840{
841 int retval = 511; 841 int retval = 511;
842 842