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| author | James Bottomley <James.Bottomley@steeleye.com> | 2006-08-30 15:48:45 -0400 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-31 11:17:18 -0400 |
| commit | 492dfb489658dfe4a755fa29dd0e34e9c8bd8fb8 (patch) | |
| tree | 1ad52b1ce98743729c7cacce0c602e22d3a5d076 /include | |
| parent | f19eaa7f53736449a6eac89c3863eca2c64d5913 (diff) | |
| download | linux-stable-492dfb489658dfe4a755fa29dd0e34e9c8bd8fb8.tar.gz linux-stable-492dfb489658dfe4a755fa29dd0e34e9c8bd8fb8.tar.bz2 linux-stable-492dfb489658dfe4a755fa29dd0e34e9c8bd8fb8.zip | |
[SCSI] block: add support for shared tag maps
The current block queue implementation already contains most of the
machinery for shared tag maps. The only remaining pieces are a way to
allocate and destroy a tag map independently of the queues (so that
the maps can be managed on the life cycle of the overseeing entity)
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index aafe82788b4e..427b0d61be6c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -746,6 +746,8 @@ extern void blk_queue_free_tags(request_queue_t *); extern int blk_queue_resize_tags(request_queue_t *, int); extern void blk_queue_invalidate_tags(request_queue_t *); extern long blk_congestion_wait(int rw, long timeout); +extern struct blk_queue_tag *blk_init_tags(int); +extern void blk_free_tags(struct blk_queue_tag *); extern void blk_rq_bio_prep(request_queue_t *, struct request *, struct bio *); extern int blkdev_issue_flush(struct block_device *, sector_t *); |