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

From: Christoph Hellwig
Date: Mon Aug 27 2018 - 04:57:34 EST

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? 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?