From: Jinjie Ruan <ruanjinjie@huawei.com>
To: Will Deacon <will@kernel.org>
Cc: <catalin.marinas@arm.com>, <tsbogend@alpha.franken.de>,
<tglx@kernel.org>, <mingo@redhat.com>, <bp@alien8.de>,
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Subject: Re: [PATCH v3 00/12] arm64: Add HOTPLUG_PARALLEL support for secondary CPUs
Date: Thu, 25 Jun 2026 09:34:36 +0800 [thread overview]
Message-ID: <32d41a67-cf37-4079-8218-bed2b73bbf14@huawei.com> (raw)
In-Reply-To: <ajvKkLw5bL-FT5JC@willie-the-truck>
On 6/24/2026 8:16 PM, Will Deacon wrote:
> On Wed, Jun 24, 2026 at 05:25:25PM +0800, Jinjie Ruan wrote:
>> Support for parallel secondary CPU bringup is already utilized by x86,
>> MIPS, and RISC-V. This patch brings this capability to the arm64
>> architecture.
>>
>> Introduce CONFIG_HOTPLUG_PARALLEL_SMT to avoid primary SMT threads
>> to boot first constraint.
>>
>> And add a 'cpu' parameter to update_cpu_boot_status() to allow updating
>> the boot status at a per-CPU granularity during parallel bringup.
>>
>> Rework the global `secondary_data` and `__early_cpu_boot_status` accessed
>> during early boot into per-CPU arrays to allow secondary CPUs to boot
>> in parallel.
>>
>> And reuse `__cpu_logical_map` array in the early boot code in head.S
>> to resolve each secondary CPU's logical ID concurrently.
>>
>> This series includes a subset of the refactoring patches proposed
>> by Will Deacon, with further adjustments.
>
> Sheesh, Jinjie, what are you doing?
>
> I said yesterday that I would dust off the old series after the merge
> window:
>
> https://lore.kernel.org/all/ajqYaklhIyvaNLlk@willie-the-truck/
>
> "Please just give me a week or so to rebase my changes and send them out
> for discussion"
>
> but instead, you've posted patches from me that are missing a bunch of
> fixes that need to be folded back in:
>
> https://web.git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/commit/?h=cpu-hotplug&id=2d5b8df5d4e2bbc142e3b4f21cabbca96e3da79d
>
Hi Will,
I am terribly sorry for my impatience and the confusion this has caused.
I completely misread the situation and shouldn't have posted those
incomplete patches, especially when you explicitly asked for a week to
rebase them properly.
> so now you're asking people to review incomplete patches from somebody
> else.
>
> Please just give me the time I asked for. If you want to help out in the
> meantime, there are plenty of patches that need reviewing...
It was a mistake on my part, and I sincerely apologize for wasting
community review resources and disrupting your schedule.
I will absolutely back off now and wait for your official series. Lesson
learned. Thanks for your patience and for calling me out on this.
Best regards,
Jinjie
>
> Will
>
prev parent reply other threads:[~2026-06-25 1:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-24 9:25 [PATCH v3 00/12] arm64: Add HOTPLUG_PARALLEL support for secondary CPUs Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 01/12] cpu/hotplug: Introduce CONFIG_HOTPLUG_PARALLEL_SMT Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 02/12] cpu/hotplug: Propagate bring-up status to arch_cpuhp_cleanup_kick_cpu() Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 03/12] arm64: smp: Tidy up smp_prepare_cpus() Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 04/12] arm64: smp: Tidy up cpuinfo init and cpufeature updates Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 05/12] arm64: smp: Defer RCU registration during secondary CPU bringup Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 06/12] arm64: smp: Use generic HOTPLUG_SPLIT_STARTUP machinery for CPU onlining Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 07/12] arm64: cpu_ops: Make 'cpu_operations' pointer global instead of per-cpu Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 08/12] arm64: cpu_ops: Introduce get_secondary_cpu_ops() Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 09/12] arm64: cpufeature: Ensure atomic updates to system_cpucaps bitmap Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 10/12] arm64: smp: Pass CPU ID to update_cpu_boot_status() Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 11/12] arm64: smp: Rework early boot data into per-CPU arrays Jinjie Ruan
2026-06-24 9:25 ` [PATCH v3 12/12] arm64: Add HOTPLUG_PARALLEL support for secondary CPUs Jinjie Ruan
2026-06-24 12:16 ` [PATCH v3 00/12] " Will Deacon
2026-06-24 14:59 ` Borislav Petkov
2026-06-25 1:34 ` Jinjie Ruan [this message]
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