Re: [PATCH 1/2] percpu: km: remove SMP check

From: Christopher Lameter
Date: Tue Feb 26 2019 - 10:16:47 EST


On Mon, 25 Feb 2019, Dennis Zhou wrote:

> > @@ -27,7 +27,7 @@
> > * chunk size is not aligned. percpu-km code will whine about it.
> > */
> >
> > -#if defined(CONFIG_SMP) && defined(CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK)
> > +#if defined(CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK)
> > #error "contiguous percpu allocation is incompatible with paged first chunk"
> > #endif
> >
> > --
> > 2.16.4
> >
>
> Hi,
>
> I think keeping CONFIG_SMP makes this easier to remember dependencies
> rather than having to dig into the config. So this is a NACK from me.

But it simplifies the code and makes it easier to read.