constify blk_rq_map_user_iov() and friends
sg_iovec array passed to it can be const Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -188,7 +188,7 @@ EXPORT_SYMBOL(blk_rq_map_user);
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* unmapping.
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*/
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int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
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struct rq_map_data *map_data, struct sg_iovec *iov,
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struct rq_map_data *map_data, const struct sg_iovec *iov,
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int iov_count, unsigned int len, gfp_t gfp_mask)
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{
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struct bio *bio;
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10
fs/bio.c
10
fs/bio.c
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@ -1003,7 +1003,7 @@ struct bio_map_data {
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};
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static void bio_set_map_data(struct bio_map_data *bmd, struct bio *bio,
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struct sg_iovec *iov, int iov_count,
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const struct sg_iovec *iov, int iov_count,
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int is_our_pages)
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{
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memcpy(bmd->sgvecs, iov, sizeof(struct sg_iovec) * iov_count);
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@ -1023,7 +1023,7 @@ static struct bio_map_data *bio_alloc_map_data(int nr_segs,
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sizeof(struct sg_iovec) * iov_count, gfp_mask);
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}
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static int __bio_copy_iov(struct bio *bio, struct sg_iovec *iov, int iov_count,
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static int __bio_copy_iov(struct bio *bio, const struct sg_iovec *iov, int iov_count,
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int to_user, int from_user, int do_free_page)
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{
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int ret = 0, i;
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@ -1121,7 +1121,7 @@ EXPORT_SYMBOL(bio_uncopy_user);
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*/
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struct bio *bio_copy_user_iov(struct request_queue *q,
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struct rq_map_data *map_data,
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struct sg_iovec *iov, int iov_count,
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const struct sg_iovec *iov, int iov_count,
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int write_to_vm, gfp_t gfp_mask)
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{
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struct bio_map_data *bmd;
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@ -1260,7 +1260,7 @@ EXPORT_SYMBOL(bio_copy_user);
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static struct bio *__bio_map_user_iov(struct request_queue *q,
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struct block_device *bdev,
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struct sg_iovec *iov, int iov_count,
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const struct sg_iovec *iov, int iov_count,
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int write_to_vm, gfp_t gfp_mask)
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{
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int i, j;
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@ -1408,7 +1408,7 @@ EXPORT_SYMBOL(bio_map_user);
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* device. Returns an error pointer in case of error.
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*/
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struct bio *bio_map_user_iov(struct request_queue *q, struct block_device *bdev,
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struct sg_iovec *iov, int iov_count,
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const struct sg_iovec *iov, int iov_count,
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int write_to_vm, gfp_t gfp_mask)
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{
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struct bio *bio;
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@ -388,7 +388,7 @@ struct sg_iovec;
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struct rq_map_data;
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extern struct bio *bio_map_user_iov(struct request_queue *,
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struct block_device *,
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struct sg_iovec *, int, int, gfp_t);
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const struct sg_iovec *, int, int, gfp_t);
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extern void bio_unmap_user(struct bio *);
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extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
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gfp_t);
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@ -414,7 +414,8 @@ extern int bio_alloc_pages(struct bio *bio, gfp_t gfp);
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extern struct bio *bio_copy_user(struct request_queue *, struct rq_map_data *,
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unsigned long, unsigned int, int, gfp_t);
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extern struct bio *bio_copy_user_iov(struct request_queue *,
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struct rq_map_data *, struct sg_iovec *,
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struct rq_map_data *,
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const struct sg_iovec *,
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int, int, gfp_t);
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extern int bio_uncopy_user(struct bio *);
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void zero_fill_bio(struct bio *bio);
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@ -823,8 +823,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *,
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extern int blk_rq_unmap_user(struct bio *);
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extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
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extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
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struct rq_map_data *, struct sg_iovec *, int,
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unsigned int, gfp_t);
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struct rq_map_data *, const struct sg_iovec *,
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int, unsigned int, gfp_t);
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extern int blk_execute_rq(struct request_queue *, struct gendisk *,
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struct request *, int);
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extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
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