2937 static void end_bio_bh_io_sync(struct bio *bio, int err)  in end_bio_bh_io_sync()  argument
2939 	struct buffer_head *bh = bio->bi_private;  in end_bio_bh_io_sync()
2942 		set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);  in end_bio_bh_io_sync()
2945 	if (unlikely (test_bit(BIO_QUIET,&bio->bi_flags)))  in end_bio_bh_io_sync()
2948 	bh->b_end_io(bh, test_bit(BIO_UPTODATE, &bio->bi_flags));  in end_bio_bh_io_sync()
2949 	bio_put(bio);  in end_bio_bh_io_sync()
2964 void guard_bio_eod(int rw, struct bio *bio)  in guard_bio_eod()  argument
2967 	struct bio_vec *bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];  in guard_bio_eod()
2970 	maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9;  in guard_bio_eod()
2979 	if (unlikely(bio->bi_iter.bi_sector >= maxsector))  in guard_bio_eod()
2982 	maxsector -= bio->bi_iter.bi_sector;  in guard_bio_eod()
2983 	if (likely((bio->bi_iter.bi_size >> 9) <= maxsector))  in guard_bio_eod()
2987 	truncated_bytes = bio->bi_iter.bi_size - (maxsector << 9);  in guard_bio_eod()
2990 	bio->bi_iter.bi_size -= truncated_bytes;  in guard_bio_eod()
3002 	struct bio *bio;  in _submit_bh()  local
3021 	bio = bio_alloc(GFP_NOIO, 1);  in _submit_bh()
3023 	bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);  in _submit_bh()
3024 	bio->bi_bdev = bh->b_bdev;  in _submit_bh()
3025 	bio->bi_io_vec[0].bv_page = bh->b_page;  in _submit_bh()
3026 	bio->bi_io_vec[0].bv_len = bh->b_size;  in _submit_bh()
3027 	bio->bi_io_vec[0].bv_offset = bh_offset(bh);  in _submit_bh()
3029 	bio->bi_vcnt = 1;  in _submit_bh()
3030 	bio->bi_iter.bi_size = bh->b_size;  in _submit_bh()
3032 	bio->bi_end_io = end_bio_bh_io_sync;  in _submit_bh()
3033 	bio->bi_private = bh;  in _submit_bh()
3034 	bio->bi_flags |= bio_flags;  in _submit_bh()
3037 	guard_bio_eod(rw, bio);  in _submit_bh()
3044 	bio_get(bio);  in _submit_bh()
3045 	submit_bio(rw, bio);  in _submit_bh()
3047 	if (bio_flagged(bio, BIO_EOPNOTSUPP))  in _submit_bh()
3050 	bio_put(bio);  in _submit_bh()