From fb9e3534768c1daa0bd09dd00d1a8828e15079c8 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Wed, 26 Sep 2012 21:41:20 -0700 Subject: [PATCH] md: Convert md_trim_bio() to use bio_advance() Signed-off-by: Kent Overstreet CC: Jens Axboe CC: NeilBrown Acked-by: NeilBrown --- drivers/md/md.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index fcb878f88796..d323676580a9 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -194,21 +194,12 @@ void md_trim_bio(struct bio *bio, int offset, int size) if (offset == 0 && size == bio->bi_size) return; - bio->bi_sector += offset; - bio->bi_size = size; - offset <<= 9; clear_bit(BIO_SEG_VALID, &bio->bi_flags); - while (bio->bi_idx < bio->bi_vcnt && - bio->bi_io_vec[bio->bi_idx].bv_len <= offset) { - /* remove this whole bio_vec */ - offset -= bio->bi_io_vec[bio->bi_idx].bv_len; - bio->bi_idx++; - } - if (bio->bi_idx < bio->bi_vcnt) { - bio->bi_io_vec[bio->bi_idx].bv_offset += offset; - bio->bi_io_vec[bio->bi_idx].bv_len -= offset; - } + bio_advance(bio, offset << 9); + + bio->bi_size = size; + /* avoid any complications with bi_idx being non-zero*/ if (bio->bi_idx) { memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx, -- 2.11.0