Re: [PATCH v3 0/3] Move thread_info into task_struct for LoongArch

[Huacai Chen]

On Mon, Jun 15, 2026 at 11:16 AM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote:
>
> On 2026/6/15 上午10:23, Huacai Chen wrote:
> > On Mon, Jun 15, 2026 at 9:41 AM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote:
> >>
> >> On 2026/6/14 上午10:51, Huacai Chen wrote:
> >>> Hi, Tiezhu,
> >>>
> >>> I have queued this series for 7.2, does the below series depend on this one?
> >>>
> >>> https://lore.kernel.org/loongarch/20260521125636.26744-1-yangtiezhu@xxxxxxxxxxx/T/#t
> >>
> >> This is independent on CONFIG_THREAD_INFO_IN_TASK.
> >>
> >>> https://lore.kernel.org/loongarch/20260428080051.20938-1-yangtiezhu@xxxxxxxxxxx/T/#t
> >>
> >> This is dependent on CONFIG_THREAD_INFO_IN_TASK.
> >>
> >> But anyway, I plan to send new version for the above two series of
> >> selftests once this "Move thread_info into task_struct for LoongArch"
> >> series is merged into the mainline, maybe after 7.2-rc1.
> >>
> >> Because the code under selftests need to be updated, for example,
> >> it can use bpf_get_current_task_btf()->thread_info.preempt_count
> >> for get_preempt_count(), and it should use ld.wu rather than ld.w
> >> for bpf_get_smp_processor_id().
> > You can update new versions now, then they can be merged together.
>
> Thanks for your suggestion.
>
> However, considering that these selftest patches need to be
> routed through the BPF tree (rather than the LoongArch tree),
> updating them right now during the active merge window might
> be inappropriate and risky.
>
> Given that these selftests strictly depend on the "move
> thread_info into task_struct" core changes, sending them to
> the BPF list now could cause cross-tree dependency issues and
> potential build breakages if the core series undergoes any late
> adjustments before hitting mainline.
>
> Moreover, because these are selftest adaptations rather than
> urgent bug fixes, they aren't high-priority for this immediate
> window. I will rebase and submit the new version to the BPF tree
> right after 7.2-rc1, once the LoongArch base infrastructure is
> securely merged into the mainline.
In history most arch-specific selftests are merged via arch trees,
including perf, bpf, ftrace, kvm and so on.

Huacai

>
> Thanks,
> Tiezhu
>