From: Ard Biesheuvel <ardb@kernel.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Packard <keithpac@amazon.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Paul Mackerras <paulus@samba.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Kees Cook <keescook@chromium.org>,
Andy Lutomirski <luto@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
"open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)"
<linuxppc-dev@lists.ozlabs.org>,
linux-riscv <linux-riscv@lists.infradead.org>,
"open list:S390" <linux-s390@vger.kernel.org>
Subject: Re: [RFC PATCH 4/8] powerpc: add CPU field to struct thread_info
Date: Mon, 27 Sep 2021 17:12:43 +0200 [thread overview]
Message-ID: <CAMj1kXEojbQbNzCP39KT4EzFAyW3J1Tfm_stCZ+fGo8_SO90PA@mail.gmail.com> (raw)
In-Reply-To: <20210914121036.3975026-5-ardb@kernel.org>
On Tue, 14 Sept 2021 at 14:11, Ard Biesheuvel <ardb@kernel.org> wrote:
>
> The CPU field will be moved back into thread_info even when
> THREAD_INFO_IN_TASK is enabled, so add it back to powerpc's definition
> of struct thread_info.
>
> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Michael,
Do you have any objections or issues with this patch or the subsequent
ones cleaning up the task CPU kludge for ppc32? Christophe indicated
that he was happy with it.
Thanks,
Ard.
> ---
> arch/powerpc/include/asm/thread_info.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
> index b4ec6c7dd72e..5725029aaa29 100644
> --- a/arch/powerpc/include/asm/thread_info.h
> +++ b/arch/powerpc/include/asm/thread_info.h
> @@ -47,6 +47,9 @@
> struct thread_info {
> int preempt_count; /* 0 => preemptable,
> <0 => BUG */
> +#ifdef CONFIG_SMP
> + unsigned int cpu;
> +#endif
> unsigned long local_flags; /* private flags for thread */
> #ifdef CONFIG_LIVEPATCH
> unsigned long *livepatch_sp;
> --
> 2.30.2
>
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next prev parent reply other threads:[~2021-09-27 15:13 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 12:10 [RFC PATCH 0/8] Move task_struct::cpu back into thread_info Ard Biesheuvel
2021-09-14 12:10 ` [RFC PATCH 1/8] arm64: add CPU field to struct thread_info Ard Biesheuvel
2021-09-14 15:41 ` Linus Torvalds
2021-09-14 15:42 ` Ard Biesheuvel
2021-09-16 14:41 ` Catalin Marinas
2021-09-21 12:04 ` Ard Biesheuvel
2021-09-14 12:10 ` [RFC PATCH 2/8] x86: " Ard Biesheuvel
2021-09-21 12:54 ` Borislav Petkov
2021-09-14 12:10 ` [RFC PATCH 3/8] s390: " Ard Biesheuvel
2021-09-28 13:52 ` Ard Biesheuvel
2021-09-14 12:10 ` [RFC PATCH 4/8] powerpc: " Ard Biesheuvel
2021-09-27 15:12 ` Ard Biesheuvel [this message]
2021-09-27 23:13 ` Michael Ellerman
2021-09-28 0:16 ` Michael Ellerman
2021-09-28 13:18 ` Ard Biesheuvel
2021-09-29 22:46 ` Michael Ellerman
2021-09-29 23:10 ` Kees Cook
2021-09-30 17:47 ` Kees Cook
2021-10-05 1:55 ` Michael Ellerman
2021-09-14 12:10 ` [RFC PATCH 5/8] sched: move CPU field back into thread_info if THREAD_INFO_IN_TASK=y Ard Biesheuvel
2021-09-14 15:46 ` Linus Torvalds
2021-09-14 15:52 ` Ard Biesheuvel
2021-09-14 15:58 ` Linus Torvalds
2021-09-14 16:10 ` Ard Biesheuvel
2021-09-21 13:12 ` Catalin Marinas
2021-09-14 12:10 ` [RFC PATCH 6/8] powerpc: smp: remove hack to obtain offset of task_struct::cpu Ard Biesheuvel
2021-09-14 12:10 ` [RFC PATCH 7/8] riscv: rely on core code to keep thread_info::cpu updated Ard Biesheuvel
2021-09-28 22:07 ` Palmer Dabbelt
2021-09-14 12:10 ` [RFC PATCH 8/8] ARM: " Ard Biesheuvel
2021-09-14 13:49 ` [RFC PATCH 0/8] Move task_struct::cpu back into thread_info Christophe Leroy
2021-09-14 13:55 ` Mark Rutland
2021-09-21 12:06 ` Ard Biesheuvel
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