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[73.143.21.186]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8cfc9088df1sm843364185a.25.2026.03.23.09.01.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Mar 2026 09:01:37 -0700 (PDT) From: "Vineeth Pillai (Google)" To: Cc: "Vineeth Pillai (Google)" , Steven Rostedt , Peter Zijlstra , Anna-Maria Behnsen , Frederic Weisbecker , Ingo Molnar , Thomas Gleixner , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH v2 17/19] kernel: time, trace: Use trace_call__##name() at guarded tracepoint call sites Date: Mon, 23 Mar 2026 12:00:36 -0400 Message-ID: <20260323160052.17528-18-vineeth@bitbyteword.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323160052.17528-1-vineeth@bitbyteword.org> References: <20260323160052.17528-1-vineeth@bitbyteword.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace trace_foo() with trace_call__foo() at sites already guarded by tracepoint_enabled() or trace_foo_enabled() checks, avoiding a redundant static_branch_unlikely() re-evaluation inside the tracepoint. - tick-sched.c: Multiple trace_tick_stop() calls are guarded by an early return when tracepoint_enabled(tick_stop) is false. - trace_benchmark.c: trace_benchmark_event() is guarded by an early return when !trace_benchmark_event_enabled(). Suggested-by: Steven Rostedt Suggested-by: Peter Zijlstra Signed-off-by: Vineeth Pillai (Google) --- kernel/time/tick-sched.c | 12 ++++++------ kernel/trace/trace_benchmark.c | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index f7907fadd63f2..f8ab472e30858 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -348,32 +348,32 @@ static bool check_tick_dependency(atomic_t *dep) return !val; =20 if (val & TICK_DEP_MASK_POSIX_TIMER) { - trace_tick_stop(0, TICK_DEP_MASK_POSIX_TIMER); + trace_call__tick_stop(0, TICK_DEP_MASK_POSIX_TIMER); return true; } =20 if (val & TICK_DEP_MASK_PERF_EVENTS) { - trace_tick_stop(0, TICK_DEP_MASK_PERF_EVENTS); + trace_call__tick_stop(0, TICK_DEP_MASK_PERF_EVENTS); return true; } =20 if (val & TICK_DEP_MASK_SCHED) { - trace_tick_stop(0, TICK_DEP_MASK_SCHED); + trace_call__tick_stop(0, TICK_DEP_MASK_SCHED); return true; } =20 if (val & TICK_DEP_MASK_CLOCK_UNSTABLE) { - trace_tick_stop(0, TICK_DEP_MASK_CLOCK_UNSTABLE); + trace_call__tick_stop(0, TICK_DEP_MASK_CLOCK_UNSTABLE); return true; } =20 if (val & TICK_DEP_MASK_RCU) { - trace_tick_stop(0, TICK_DEP_MASK_RCU); + trace_call__tick_stop(0, TICK_DEP_MASK_RCU); return true; } =20 if (val & TICK_DEP_MASK_RCU_EXP) { - trace_tick_stop(0, TICK_DEP_MASK_RCU_EXP); + trace_call__tick_stop(0, TICK_DEP_MASK_RCU_EXP); return true; } =20 diff --git a/kernel/trace/trace_benchmark.c b/kernel/trace/trace_benchmark.c index e19c32f2a9381..189d383934fd3 100644 --- a/kernel/trace/trace_benchmark.c +++ b/kernel/trace/trace_benchmark.c @@ -51,7 +51,7 @@ static void trace_do_benchmark(void) =20 local_irq_disable(); start =3D trace_clock_local(); - trace_benchmark_event(bm_str, bm_last); + trace_call__benchmark_event(bm_str, bm_last); stop =3D trace_clock_local(); local_irq_enable(); =20 --=20 2.53.0