Re: removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE

[Peter Zijlstra]

On Mon, Aug 27, 2018 at 01:57:08AM -0700, Christoph Hellwig wrote:
> On Mon, Aug 27, 2018 at 09:47:01AM +0200, Peter Zijlstra wrote:
> > sh is trivial, arm seems doable, with a bit of luck we can do 'rm -rf
> > arch/ia64' leaving us with s390.
> 
> Is removing ia64 a serious plan?

I 'joked' about it a while ago on IRC, and aegl reacted that it might
not be entirely unreasonable.

> It is the cause for a fair share of
> oddities in dma lang, and I did not have much luck getting maintainer
> replies lately, but I didn't know of a plan to get rid of it.
> 
> What is the state of people still using ia64 mainline kernels vs just
> old distros in the still existing machines?

Both arjan and aegl said that the vast majority of people still running
ia64 machines run old distros.