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block: Make bio_iov_bvec_set() accept pointer to const iov_iter

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Make bio_iov_bvec_set() accept a pointer to const iov_iter, which means
that we can drop the undesirable casting to struct iov_iter pointer in
blk_rq_map_user_bvec().

Signed-off-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241202115727.2320401-1-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
John Garry
2024-12-02 11:57:27 +00:00
committed by Jens Axboe
parent 790eb09e59
commit 2f4873f9b5
3 changed files with 3 additions and 3 deletions
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2
block/blk-map.c
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@@ -574,7 +574,7 @@ static int blk_rq_map_user_bvec(struct request *rq, const struct iov_iter *iter)
bio = blk_rq_map_bio_alloc(rq, 0, GFP_KERNEL);
if (!bio)
return -ENOMEM;
bio_iov_bvec_set(bio, (struct iov_iter *)iter);
bio_iov_bvec_set(bio, iter);
/* check that the data layout matches the hardware restrictions */
ret = bio_split_rw_at(bio, lim, &nsegs, max_bytes);