Symbol: ZCP_ARG_SYNC
usr/src/lib/libzfs_core/common/libzfs_core.c
1078
fnvlist_add_boolean_value(args, ZCP_ARG_SYNC, sync);
usr/src/uts/common/fs/zfs/zfs_ioctl.c
3858
if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) {