Re: spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested'

André Almeida
2021-11-24T14:31:35Z

Hi Arnd,

Às 04:49 de 24/11/21, Arnd Bergmann escreveu:
> On Wed, Nov 24, 2021 at 8:31 AM Rob Landley <rob@landley.net> wrote:
>> On 11/23/21 5:38 AM, Naresh Kamboju wrote:
>> @@ -451,3 +451,4 @@
>> 446 common landlock_restrict_self sys_landlock_restrict_self
>> # 447 reserved for memfd_secret
>> 448 common process_mrelease sys_process_mrelease
>> +449 common futex_waitv sys_futex_waitv
>
> I don't know what's going on with this one, I don't actually see
> a reason why it isn't already wired up on all architectures. If we add
> this, it should probably be done for all architectures at once as a
> bugfix, but it's possible that this is intentionally only used on
> x86 and arm.
>
> André, can you comment on this?
>
> Arnd
>

I've added entries for the archs that I've actually tested, but there
should not be any arch-specific problems in futex_waitv. I'll submit a
patch to wire it up for the remaining architectures.