linux-kernel - Re: [PATCH v10 12/40] mm: Define VM_SHADOW

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Message-ID: <6e246375ed9e798906c9de59692d4b10f089c98e.camel@intel.com>
Date: Fri, 16 Aug 2024 13:59:14 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
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Subject: Re: [PATCH v10 12/40] mm: Define VM_SHADOW_STACK for arm64 when we
 support GCS

On Thu, 2024-08-15 at 19:19 +0100, Mark Brown wrote:
> > The series is already upstream. You just need to add an arm version of that
> > linked patch. But up to you.
> 
> Your series modified the existing x86 custom arch_get_unmapped_area*()
> functions, arm64 uses the generic implementation of those so I'd have to
> either add custom implementations (which I can't imagine would be met
> with great enthusiasm) or update the generic ones.  A generic
> implementation seems reasonable and it looks like RISC-V would also end
> up using it so while it's a bit invasive it does seem more sensible to
> do the change there.

Ah, I misunderstood. Makes sense.