VFS_ACCOUNT
VFS_ACCOUNT(mp, o_uid, o_gid, -size);
VFS_ACCOUNT(mp, uid, gid, size);
VFS_ACCOUNT(nd->nl_nch.mount, uid, gid, length - old_size);
VFS_ACCOUNT(mp, uid, gid, length - old_size);
VFS_ACCOUNT(mp, vap->va_uid, vap->va_gid, -osize);
VFS_ACCOUNT(nch->mount, va.va_uid, va.va_gid, -va.va_size);
VFS_ACCOUNT(mp, va.va_uid, va.va_gid, size_after - size_before);