summaryrefslogtreecommitdiffstats
path: root/include/linux/bio.h
diff options
context:
space:
mode:
authorKent Overstreet <kmo@daterainc.com>2015-01-18 16:16:31 +0100
committerJens Axboe <axboe@fb.com>2015-02-05 09:30:40 -0700
commit26e49cfc7e988a76bf1e55cef0d9e438e5489180 (patch)
tree43a2a3590738ef4097b63719e35fcc761a66e844 /include/linux/bio.h
parent1dfa0f68c040080c5fefa7211b4ec34d202f8570 (diff)
downloadop-kernel-dev-26e49cfc7e988a76bf1e55cef0d9e438e5489180.zip
op-kernel-dev-26e49cfc7e988a76bf1e55cef0d9e438e5489180.tar.gz
block: pass iov_iter to the BLOCK_PC mapping functions
Make use of a new interface provided by iov_iter, backed by scatter-gather list of iovec, instead of the old interface based on sg_iovec. Also use iov_iter_advance() instead of manual iteration. This commit should contain only literal replacements, without functional changes. Cc: Christoph Hellwig <hch@infradead.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Doug Gilbert <dgilbert@interlog.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Kent Overstreet <kmo@daterainc.com> [dpark: add more description in commit message] Signed-off-by: Dongsu Park <dongsu.park@profitbricks.com> [hch: fixed to do a deep clone of the iov_iter, and to properly use the iov_iter direction] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d0d6735..0d6105b 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -428,11 +428,10 @@ extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *,
unsigned int, unsigned int);
extern int bio_get_nr_vecs(struct block_device *);
-struct sg_iovec;
struct rq_map_data;
extern struct bio *bio_map_user_iov(struct request_queue *,
struct block_device *,
- const struct sg_iovec *, int, int, gfp_t);
+ const struct iov_iter *, gfp_t);
extern void bio_unmap_user(struct bio *);
extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
gfp_t);
@@ -462,8 +461,8 @@ extern int bio_alloc_pages(struct bio *bio, gfp_t gfp);
extern struct bio *bio_copy_user_iov(struct request_queue *,
struct rq_map_data *,
- const struct sg_iovec *,
- int, int, gfp_t);
+ const struct iov_iter *,
+ gfp_t);
extern int bio_uncopy_user(struct bio *);
void zero_fill_bio(struct bio *bio);
extern struct bio_vec *bvec_alloc(gfp_t, int, unsigned long *, mempool_t *);
OpenPOWER on IntegriCloud