Birthtime handling in ZFS

[Phil Stone]

I'm using 8.3-RELEASE-p5
It seems that st_birthtime returned by lstat(2) on a zfs file always equals ctime instead of birthtime.

Looking at /base/stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
Function zfs_getattr()
Line 2682 :
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &crtime, 16);

Shouldn't it be :
SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CRTIME(zfsvfs), NULL, &crtime, 16);
instead ?

Same in stable/9 and head.

Thanks in advance for your help.
Phil