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authorKent Overstreet <kmo@daterainc.com>2015-01-18 18:16:31 +0300
committerJens Axboe <axboe@fb.com>2015-02-05 19:30:40 +0300
commit26e49cfc7e988a76bf1e55cef0d9e438e5489180 (patch)
tree43a2a3590738ef4097b63719e35fcc761a66e844 /include/linux/blkdev.h
parent1dfa0f68c040080c5fefa7211b4ec34d202f8570 (diff)
downloadlinux-26e49cfc7e988a76bf1e55cef0d9e438e5489180.tar.xz
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/blkdev.h')
-rw-r--r--include/linux/blkdev.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 13e16401a7ce..bf4ef666d191 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -855,8 +855,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *,
extern int blk_rq_unmap_user(struct bio *);
extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
- struct rq_map_data *, const struct sg_iovec *,
- int, unsigned int, gfp_t);
+ struct rq_map_data *, const struct iov_iter *,
+ gfp_t);
extern int blk_execute_rq(struct request_queue *, struct gendisk *,
struct request *, int);
extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,