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smp: Trace IPIs sent via arch_send_call_function_ipi_mask() 

This simply wraps around the arch function and prepends it with a
tracepoint, similar to send_call_function_single_ipi().

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230307143558.294354-4-vschneid@redhat.com
This commit is contained in:
Valentin Schneider 2023-03-07 14:35:54 +00:00 committed by Peter Zijlstra
parent cc9cb0a717
commit 08407b5f61
1 changed files with 8 additions and 1 deletions
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9
kernel/smp.c
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@ -103,6 +103,13 @@ void __init call_function_init(void)
smpcfd_prepare_cpu(smp_processor_id());
}
static __always_inline void
send_call_function_ipi_mask(struct cpumask *mask)
{
trace_ipi_send_cpumask(mask, _RET_IP_, NULL);
arch_send_call_function_ipi_mask(mask);
}
#ifdef CONFIG_CSD_LOCK_WAIT_DEBUG
static DEFINE_STATIC_KEY_MAYBE(CONFIG_CSD_LOCK_WAIT_DEBUG_DEFAULT, csdlock_debug_enabled);
@ -762,7 +769,7 @@ static void smp_call_function_many_cond(const struct cpumask *mask,
if (nr_cpus == 1)
send_call_function_single_ipi(last_cpu);
else if (likely(nr_cpus > 1))
arch_send_call_function_ipi_mask(cfd->cpumask_ipi);
send_call_function_ipi_mask(cfd->cpumask_ipi);
}
if (run_local && (!cond_func || cond_func(this_cpu, info))) {