Re: [PATCH V2 4/6] mm: rename the global section array to mem_sections

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On 06/02/21 at 01:11am, HAGIO KAZUHITO(萩尾 一仁) wrote:
> -----Original Message-----
> > On Tue, 1 Jun 2021 10:40:09 +0200 David Hildenbrand <david@xxxxxxxxxx> wrote:
> > 
> > > > Thanks, i explained the reason during my last reply.
> > > > Andrew has already picked this patch to -mm tree.
> > >
> > > Just because it's in Andrews tree doesn't mean it will end up upstream. ;)
> > >
> > > Anyhow, no really strong opinion, it's simply unnecessary code churn
> > > that makes bisecting harder without real value IMHO.
> > 
> > I think it's a good change - mem_sections refers to multiple instances
> > of a mem_section.  Churn is a pain, but that's the price we pay for more
> > readable code.  And for having screwed it up originally ;)
> 
> From a makedumpfile/crash-utility viewpoint, I don't deny kernel improvement
> and probably the change will not be hard for them to support, but I'd like
> you to remember that the tool users will need to update them for the change.

As VIM user, I can understand Aisheng's feeling on the mem_section
variable which has the same symbol name as its type. Meanwhile it does
cause makedumpfile/crash having to be changed accordingly.

Maybe we can carry it when any essential change is needed in both kernel
and makedumpfile/crash around it.

> 
> The situation where we need to update the tools for new kernels is usual, but
> there are not many cases that they cannot even start session, and this change

By the way, Kazu, about a case starting session, could you be more specific
or rephrase? I may not get it clearly. Thanks.

> will cause it.  Personally I wonder the change is worth forcing users to update
> them.
> 
> Thanks,
> Kazu
> 






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