diff options
| author | James Bottomley <James.Bottomley@SteelEye.com> | 2005-06-20 14:06:52 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2005-06-20 14:06:52 +0200 |
| commit | f1970baf6d74e03bd32072ab453f2fc01bc1b8d3 (patch) | |
| tree | 559898cdf83bd0f93b8a72248c6423a6548fb604 /include | |
| parent | dd1cab95f356f1395278633565f198463cf6bd24 (diff) | |
[PATCH] Add scatter-gather support for the block layer SG_IO
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 4 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 1dd2bc2e84a..ebcd03ba2e2 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -281,6 +281,10 @@ extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); extern int bio_get_nr_vecs(struct block_device *); extern struct bio *bio_map_user(struct request_queue *, struct block_device *, unsigned long, unsigned int, int); +struct sg_iovec; +extern struct bio *bio_map_user_iov(struct request_queue *, + struct block_device *, + struct sg_iovec *, int, int); extern void bio_unmap_user(struct bio *); extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int, unsigned int); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index fc0dce07861..0430ea3e5f2 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -561,6 +561,7 @@ extern void blk_queue_activity_fn(request_queue_t *, activity_fn *, void *); extern int blk_rq_map_user(request_queue_t *, struct request *, void __user *, unsigned int); extern int blk_rq_unmap_user(struct bio *, unsigned int); extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned int, unsigned int); +extern int blk_rq_map_user_iov(request_queue_t *, struct request *, struct sg_iovec *, int); extern int blk_execute_rq(request_queue_t *, struct gendisk *, struct request *); static inline request_queue_t *bdev_get_queue(struct block_device *bdev) |