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| author | Valentin Schneider <vschneid@redhat.com> | 2023-03-07 17:35:53 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-03-24 13:01:27 +0300 |
| commit | cc9cb0a71725aa8dd8d8f534a9b562bbf7981f75 (patch) | |
| tree | cfbb5e1471f708af0d9769c1c3e448e52435fcd4 /arch/arm64/kernel | |
| parent | 56eb0598c7a30c76009a082d3213486d6a013df0 (diff) | |
| download | linux-cc9cb0a71725aa8dd8d8f534a9b562bbf7981f75.tar.xz | |
sched, smp: Trace IPIs sent via send_call_function_single_ipi()
send_call_function_single_ipi() is the thing that sends IPIs at the bottom
of smp_call_function*() via either generic_exec_single() or
smp_call_function_many_cond(). Give it an IPI-related tracepoint.
Note that this ends up tracing any IPI sent via __smp_call_single_queue(),
which covers __ttwu_queue_wakelist() and irq_work_queue_on() "for free".
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>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230307143558.294354-3-vschneid@redhat.com
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/smp.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 4e8327264255..438c16fc4463 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -51,7 +51,6 @@ #include <asm/ptrace.h> #include <asm/virt.h> -#define CREATE_TRACE_POINTS #include <trace/events/ipi.h> DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number); |