Re: [PATCH 4.14 023/159] mm/sparsemem: Allocate mem_section at runtime for CONFIG_SPARSEMEM_EXTREME=y

Dave Young
2018-01-10T03:08:27Z

On Tue, Jan 09, 2018 at 12:05:52PM +0300, Kirill A. Shutemov wrote:
> On Tue, Jan 09, 2018 at 03:24:40PM +0800, Dave Young wrote:
> > On 01/09/18 at 01:41pm, Baoquan He wrote:
> > > On 01/09/18 at 09:09am, Dave Young wrote:
> > >
> > > > As for the macro name, VMCOREINFO_SYMBOL_ARRAY sounds better.
>
> Yep, that's better.
>
> > > I still think using vmcoreinfo_append_str is better. Unless we replace
> > > all array variables with the newly added macro.
> > >
> > > vmcoreinfo_append_str("SYMBOL(mem_section)=%lx\n",
> > > (unsigned long)mem_section);
> >
> > I have no strong opinion, either change all array uses or just introduce
> > the macro and start to use it from now on if we have similar array
> > symbols.
>
> Do you need some action on my side or will you folks take care about this?

I think Baoquan was suggesting to update all array users in current code, if you can check every VMCOREINFO_SYMBOL and update all the arrays he will be happy. But if can not do it easily I'm fine with a VMCOREINFO_SYMBOL_ARRAY changes only now, we kdump people can do it later as well.

>
> --
> Kirill A. Shutemov

Thanks
Dave