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

[RFC PATCH 0/8] Move task_struct::cpu back into thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
[RFC PATCH 1/8] arm64: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info · Linus Torvalds <torvalds@linux-foundation.org> · 2021-09-14
Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info · Catalin Marinas <catalin.marinas@arm.com> · 2021-09-16
Re: [RFC PATCH 1/8] arm64: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-21
[RFC PATCH 2/8] x86: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 2/8] x86: add CPU field to struct thread_info · Borislav Petkov <bp@alien8.de> · 2021-09-21
[RFC PATCH 3/8] s390: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 3/8] s390: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-28
[RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-27
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Michael Ellerman <mpe@ellerman.id.au> · 2021-09-27
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Michael Ellerman <mpe@ellerman.id.au> · 2021-09-28
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-28
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Michael Ellerman <mpe@ellerman.id.au> · 2021-09-29
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Kees Cook <hidden> · 2021-09-29
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Kees Cook <hidden> · 2021-09-30
Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info · Michael Ellerman <mpe@ellerman.id.au> · 2021-10-05
[RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Linus Torvalds <torvalds@linux-foundation.org> · 2021-09-14
Re: [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Linus Torvalds <torvalds@linux-foundation.org> · 2021-09-14
Re: [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y · Catalin Marinas <catalin.marinas@arm.com> · 2021-09-21
[RFC PATCH 6/8] powerpc: smp: remove hack to obtain offset of task_struct::cpu · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
[RFC PATCH 7/8] riscv: rely on core code to keep thread_info::cpu updated · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 7/8] riscv: rely on core code to keep thread_info::cpu updated · Palmer Dabbelt <palmer@dabbelt.com> · 2021-09-28
[RFC PATCH 8/8] ARM: rely on core code to keep thread_info::cpu updated · Ard Biesheuvel <ardb@kernel.org> · 2021-09-14
Re: [RFC PATCH 0/8] Move task_struct::cpu back into thread_info · Christophe Leroy <hidden> · 2021-09-14
Re: [RFC PATCH 0/8] Move task_struct::cpu back into thread_info · Mark Rutland <mark.rutland@arm.com> · 2021-09-14
Re: [RFC PATCH 0/8] Move task_struct::cpu back into thread_info · Ard Biesheuvel <ardb@kernel.org> · 2021-09-21

From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2021-09-14 15:41:38
Also in: linux-arm-kernel, linux-riscv, linux-s390, lkml

On Tue, Sep 14, 2021 at 5:10 AM Ard Biesheuvel [off-list ref] 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.

The series looks sane to me, but it strikes me that it's inconsistent
- here for arm64, you make it unconditional, but for the other
architectures you end up putting it inside a #ifdef CONFIG_SMP.

Was there some reason for this odd behavior?

           Linus

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