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Date:   Thu, 14 Oct 2021 09:09:09 -0400 (EDT)
From:   Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To:     Yafang Shao <laoar.shao@gmail.com>
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Subject: Re: [sched.h] 317419b91e:
 perf-sanity-tests.Parse_sched_tracepoints_fields.fail
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----- On Oct 14, 2021, at 9:05 AM, Yafang Shao laoar.shao@gmail.com wrote:
[...]
>> If it happens that this ABI break is noticed by more than an in-tree test
>> program, then
>> the kernel's ABI rules will require that this trace field size stays unchanged.
>> This brings
>> up once more the whole topic of "Tracepoints ABI" which has been discussed
>> repeatedly in
>> the past.
>>
> 
> I will check if any other in-tree tools depends on TASK_COMM_LEN.

That's a start, but given this is a userspace ABI, out-of-tree userland
tools which depend of this to be fixed-size are also relevant.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com