dmirror_disk_t
dmirror_disk_t disk;
dmirror_issue_write(dmirror_disk_t disk, struct bio *bio)
dmirror_disk_t disk, m_disk;
segdesc_set_flag(dmirror_disk_t disk, off_t segno, int flag)
segdesc_clear_flag(dmirror_disk_t disk, off_t segno, int flag)
dmirror_disk_t disk;
dmirror_issue_read(dmirror_disk_t disk, struct bio *bio)
dmirror_disk_t disk, m_disk;
dmirror_disk_t disks[4];