Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info

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To: Ard Biesheuvel <ardb@xxxxxxxxxx>
Subject: Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info
From: Catalin Marinas <catalin.marinas@xxxxxxx>
Date: Thu, 16 Sep 2021 15:41:01 +0100
Cc: linux-kernel@xxxxxxxxxxxxxxx, Keith Packard <keithpac@xxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Heiko Carstens <hca@xxxxxxxxxxxxx>, Vasily Gorbik <gor@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx
In-reply-to: <20210914121036.3975026-2-ardb@kernel.org>
References: <20210914121036.3975026-1-ardb@kernel.org> <20210914121036.3975026-2-ardb@kernel.org>

On Tue, Sep 14, 2021 at 02:10:29PM +0200, Ard Biesheuvel wrote:
> The CPU field will be moved back into thread_info even when
> THREAD_INFO_IN_TASK is enabled, so add it back to arm64's definition of
> struct thread_info.
> 
> Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>

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References:
- [RFC PATCH 0/8] Move task_struct::cpu back into thread_info
  - From: Ard Biesheuvel
- [RFC PATCH 1/8] arm64: add CPU field to struct thread_info
  - From: Ard Biesheuvel

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