diff options
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 20 | 
1 files changed, 13 insertions, 7 deletions
| diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e61f22be4d0e..53ea933cf60b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h | |||
| @@ -280,6 +280,15 @@ struct blk_queue_tag { | |||
| 280 | atomic_t refcnt; /* map can be shared */ | 280 | atomic_t refcnt; /* map can be shared */ | 
| 281 | }; | 281 | }; | 
| 282 | 282 | ||
| 283 | #define BLK_SCSI_MAX_CMDS (256) | ||
| 284 | #define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8)) | ||
| 285 | |||
| 286 | struct blk_cmd_filter { | ||
| 287 | unsigned long read_ok[BLK_SCSI_CMD_PER_LONG]; | ||
| 288 | unsigned long write_ok[BLK_SCSI_CMD_PER_LONG]; | ||
| 289 | struct kobject kobj; | ||
| 290 | }; | ||
| 291 | |||
| 283 | struct request_queue | 292 | struct request_queue | 
| 284 | { | 293 | { | 
| 285 | /* | 294 | /* | 
| @@ -398,6 +407,7 @@ struct request_queue | |||
| 398 | #if defined(CONFIG_BLK_DEV_BSG) | 407 | #if defined(CONFIG_BLK_DEV_BSG) | 
| 399 | struct bsg_class_device bsg_dev; | 408 | struct bsg_class_device bsg_dev; | 
| 400 | #endif | 409 | #endif | 
| 410 | struct blk_cmd_filter cmd_filter; | ||
| 401 | }; | 411 | }; | 
| 402 | 412 | ||
| 403 | #define QUEUE_FLAG_CLUSTER 0 /* cluster several segments into 1 */ | 413 | #define QUEUE_FLAG_CLUSTER 0 /* cluster several segments into 1 */ | 
| @@ -807,8 +817,6 @@ extern void blk_put_queue(struct request_queue *); | |||
| 807 | /* | 817 | /* | 
| 808 | * tag stuff | 818 | * tag stuff | 
| 809 | */ | 819 | */ | 
| 810 | #define blk_queue_tag_depth(q) ((q)->queue_tags->busy) | ||
| 811 | #define blk_queue_tag_queue(q) ((q)->queue_tags->busy < (q)->queue_tags->max_depth) | ||
| 812 | #define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED) | 820 | #define blk_rq_tagged(rq) ((rq)->cmd_flags & REQ_QUEUED) | 
| 813 | extern int blk_queue_start_tag(struct request_queue *, struct request *); | 821 | extern int blk_queue_start_tag(struct request_queue *, struct request *); | 
| 814 | extern struct request *blk_queue_find_tag(struct request_queue *, int); | 822 | extern struct request *blk_queue_find_tag(struct request_queue *, int); | 
| @@ -833,11 +841,9 @@ extern int blkdev_issue_flush(struct block_device *, sector_t *); | |||
| 833 | /* | 841 | /* | 
| 834 | * command filter functions | 842 | * command filter functions | 
| 835 | */ | 843 | */ | 
| 836 | extern int blk_verify_command(struct file *file, unsigned char *cmd); | 844 | extern int blk_verify_command(struct blk_cmd_filter *filter, | 
| 837 | extern int blk_cmd_filter_verify_command(struct blk_scsi_cmd_filter *filter, | 845 | unsigned char *cmd, int has_write_perm); | 
| 838 | unsigned char *cmd, mode_t *f_mode); | 846 | extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter); | 
| 839 | extern int blk_register_filter(struct gendisk *disk); | ||
| 840 | extern void blk_unregister_filter(struct gendisk *disk); | ||
| 841 | 847 | ||
| 842 | #define MAX_PHYS_SEGMENTS 128 | 848 | #define MAX_PHYS_SEGMENTS 128 | 
| 843 | #define MAX_HW_SEGMENTS 128 | 849 | #define MAX_HW_SEGMENTS 128 | 
