Re: [PATCH] selftests/rseq: Do not skip !allowed_cpus for mm_cid

[Shuah Khan]

On 1/11/24 08:49, Mathieu Desnoyers wrote:
> Indexing with mm_cid is incompatible with skipping disallowed cpumask,
> because concurrency IDs are based on a virtual ID allocation which is
> unrelated to the physical CPU mask.
>
> These issues can be reproduced by running the rseq selftests under a
> taskset which excludes CPU 0, e.g.
>
>    taskset -c 10-20 ./run_param_test.sh
>
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
> Cc: Shuah Khan <shuah@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
> Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
> ---

Hi Mathieu,

I applied this to linux-kselftest fixes for the next rc.

Please cc linux-kselftest mailing list on your future patches. This makes
my workflow easier as it relies on patches going to linux-kselftest patchworks
project.

thanks,
-- Shuah