extern int zfs_sync(vfs_t *vfsp, short flag, cred_t *cr);
extern dev_t zfs_cmpldev(uint64_t);
extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value);
extern int zfs_sync(vfs_t *vfsp, short flag, cred_t *cr);
extern dev_t zfs_cmpldev(uint64_t);
extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value);