linux-kernel - Re: [PATCH 1/6] arch: x86: Don't use TIF flags for mm context

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Message-ID: <20200729090319.GA119549@hirez.programming.kicks-ass.net>
Date:   Wed, 29 Jul 2020 11:03:19 +0200
From:   peterz@...radead.org
To:     Gabriel Krisman Bertazi <krisman@...labora.com>
Cc:     luto@...nel.org, tglx@...utronix.de, keescook@...omium.org,
        x86@...nel.org, linux-kernel@...r.kernel.org, kernel@...labora.com,
        tony.luck@...el.com
Subject: Re: [PATCH 1/6] arch: x86: Don't use TIF flags for mm context

On Tue, Jul 28, 2020 at 04:22:24PM -0400, Gabriel Krisman Bertazi wrote:

> diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
> index 267701ae3d86..934aa15b20f2 100644
> --- a/arch/x86/include/asm/thread_info.h
> +++ b/arch/x86/include/asm/thread_info.h
> @@ -53,6 +53,12 @@ struct task_struct;
>  #include <asm/cpufeature.h>
>  #include <linux/atomic.h>
>  
> +enum {
> +	PSABI_IA64 = 0,

That's the Itanic, and it has sailed. I think you want PSABI_X86_64 or
something.

> +	PSABI_IA32 = 1,
> +	PSABI_X32  = 2
> +};