diff options
| -rw-r--r-- | drivers/md/bcache/io.c | 47 | ||||
| -rw-r--r-- | fs/bio.c | 23 |
2 files changed, 2 insertions, 68 deletions
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c index 6e04f3bb0286..0f0ab659914d 100644 --- a/drivers/md/bcache/io.c +++ b/drivers/md/bcache/io.c @@ -11,49 +11,6 @@ #include <linux/blkdev.h> -static void bch_bi_idx_hack_endio(struct bio *bio, int error) -{ - struct bio *p = bio->bi_private; - - bio_endio(p, error); - bio_put(bio); -} - -static void bch_generic_make_request_hack(struct bio *bio) -{ - if (bio->bi_iter.bi_idx) { - struct bio_vec bv; - struct bvec_iter iter; - unsigned segs = bio_segments(bio); - struct bio *clone = bio_alloc(GFP_NOIO, segs); - - bio_for_each_segment(bv, bio, iter) - clone->bi_io_vec[clone->bi_vcnt++] = bv; - - clone->bi_iter.bi_sector = bio->bi_iter.bi_sector; - clone->bi_bdev = bio->bi_bdev; - clone->bi_rw = bio->bi_rw; - clone->bi_vcnt = segs; - clone->bi_iter.bi_size = bio->bi_iter.bi_size; - - clone->bi_private = bio; - clone->bi_end_io = bch_bi_idx_hack_endio; - - bio = clone; - } - - /* - * Hack, since drivers that clone bios clone up to bi_max_vecs, but our - * bios might have had more than that (before we split them per device - * limitations). - * - * To be taken out once immutable bvec stuff is in. - */ - bio->bi_max_vecs = bio->bi_vcnt; - - generic_make_request(bio); -} - /** * bch_bio_split - split a bio * @bio: bio to split @@ -222,12 +179,12 @@ void bch_generic_make_request(struct bio *bio, struct bio_split_pool *p) n->bi_private = &s->cl; closure_get(&s->cl); - bch_generic_make_request_hack(n); + generic_make_request(n); } while (n != bio); continue_at(&s->cl, bch_bio_submit_split_done, NULL); submit: - bch_generic_make_request_hack(bio); + generic_make_request(bio); } /* Bios with headers */ @@ -1822,11 +1822,7 @@ void bio_trim(struct bio *bio, int offset, int size) { /* 'bio' is a cloned bio which we need to trim to match * the given offset and size. - * This requires adjusting bi_sector, bi_size, and bi_io_vec */ - int i; - struct bio_vec *bvec; - int sofar = 0; size <<= 9; if (offset == 0 && size == bio->bi_iter.bi_size) @@ -1837,25 +1833,6 @@ void bio_trim(struct bio *bio, int offset, int size) bio_advance(bio, offset << 9); bio->bi_iter.bi_size = size; - - /* avoid any complications with bi_idx being non-zero*/ - if (bio->bi_iter.bi_idx) { - memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_iter.bi_idx, - (bio->bi_vcnt - bio->bi_iter.bi_idx) * - sizeof(struct bio_vec)); - bio->bi_vcnt -= bio->bi_iter.bi_idx; - bio->bi_iter.bi_idx = 0; - } - /* Make sure vcnt and last bv are not too big */ - bio_for_each_segment_all(bvec, bio, i) { - if (sofar + bvec->bv_len > size) - bvec->bv_len = size - sofar; - if (bvec->bv_len == 0) { - bio->bi_vcnt = i; - break; - } - sofar += bvec->bv_len; - } } EXPORT_SYMBOL_GPL(bio_trim); |