Symbol: vdev_uberblock_sync
usr/src/uts/common/fs/zfs/vdev_label.c
1562
vdev_uberblock_sync(zio, good_writes,
usr/src/uts/common/fs/zfs/vdev_label.c
1600
vdev_uberblock_sync(zio, &good_writes, ub, svd[v], flags);