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block: remove __bio_kmap_atomic

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This helper doesn't buy us much over calling kmap_atomic directly.
In fact in the only caller it does a bit of useless work as the
caller already has the bvec at hand, and said caller would even
buggy for a multi-segment bio due to the use of this helper.

So just remove it.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2017-11-08 19:13:48 +01:00 • committed by Jens Axboe
commit d004a5e7d4
4 changed files with 8 additions and 21 deletions
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4
arch/xtensa/platforms/iss/simdisk.c
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@ -110,13 +110,13 @@ static blk_qc_t simdisk_make_request(struct request_queue *q, struct bio *bio)
sector_t sector = bio->bi_iter.bi_sector;
bio_for_each_segment(bvec, bio, iter) {
char *buffer = __bio_kmap_atomic(bio, iter);
char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset;
unsigned len = bvec.bv_len >> SECTOR_SHIFT;
simdisk_transfer(dev, sector, len, buffer,
bio_data_dir(bio) == WRITE);
sector += len;
__bio_kunmap_atomic(buffer);
kunmap_atomic(buffer)
}
bio_endio(bio);