ntfs_write_bh
err = ntfs_write_bh(sbi, &sbi->new_rec->rhdr, &nb, 0);
return ntfs_write_bh(ni->mi.sbi, &ib->rhdr, &node->nb, sync);
ntfs_write_bh(sbi, &ib->rhdr, &in->nb, 0);
int ntfs_write_bh(struct ntfs_sb_info *sbi, struct NTFS_RECORD_HEADER *rhdr,
err = ntfs_write_bh(sbi, &rec->rhdr, &mi->nb, wait);