raidz_zero
raidz_zero(xabd, xsize);
raidz_zero(yabd, xsize);
raidz_zero(xabd, xsize);
raidz_zero(yabd, xsize);
raidz_zero(xabd, xsize);
raidz_zero(yabd, xsize);
raidz_zero(zabd, xsize);
raidz_zero(xabd, xsize);
raidz_zero(xabd, xsize);
raidz_zero(xabd, xsize);
raidz_zero(yabd, xsize);