diff options
Diffstat (limited to 'fs/bio.c')
| -rw-r--r-- | fs/bio.c | 23 |
1 files changed, 0 insertions, 23 deletions
@@ -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); |