On Tue, Apr 22, 2014 at 2:06 PM, Ingo Molnar <mi...@kernel.org> wrote: > How can that field ever be nonzero? > > I.e. under what exact circumstances does this patch make sense?
Hi, Ingo, For cpuset subsystem, this filed is nonzero; for other subsystems, this is zero. Actually none of these subsystem will change this field, I just thought that this is a little subtle. as the comment in patches says, this is mainly for document reason to inform other maintainers that css_alloc implementation should be taken care of , depending on this field is zero or not. Thanks, Jianyu Zhan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/