On 2026-04-09 17:22, Aniket Gattani wrote:
[...]
  static DEFINE_MUTEX(membarrier_ipi_mutex);
-#define SERIALIZE_IPI() guard(mutex)(&membarrier_ipi_mutex)
+static DEFINE_PER_CPU(struct mutex, membarrier_cpu_mutexes);
+
I'd prefer:

SERIALIZE_IPI() -> global

SERIALIZE_IPI_CPU(cpu) -> per-cpu mutex

Rather than the -1 trick.

Thanks,

Mathieu

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

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