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Date: Thu, 26 Jan 2017 16:31:27 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Rik van Riel <riel@redhat.com>, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Andy Lutomirski <luto@amacapital.net>, Borislav Petkov <bp@alien8.de>,
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        Oleg Nesterov <oleg@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: Re: [PATCH] x86/fpu: Unify the naming of the FPU register cache
 validity flags
Message-ID: <20170126153127.GC6515@twins.programming.kicks-ass.net>
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On Thu, Jan 26, 2017 at 04:05:25PM +0100, Ingo Molnar wrote:
> diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
> index a7146dadb31d..7a4915dd0547 100644
> --- a/arch/x86/include/asm/switch_to.h
> +++ b/arch/x86/include/asm/switch_to.h
> @@ -78,7 +78,7 @@ do {									\
>   */
>  static inline void arch_task_migrate(struct task_struct *p)
>  {
> -	p->thread.fpu.fpregs_cached = 0;
> +	p->thread.fpu.fpregs_owner = 0;
>  }
>  #define arch_task_migrate arch_task_migrate

I still really dislike having this callback..