From: Song Liu <song@kernel.org>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
live-patching@vger.kernel.org
Cc: rostedt@goodmis.org, mhiramat@kernel.org, mark.rutland@arm.com,
kernel-team@meta.com, Song Liu <song@kernel.org>
Subject: [PATCH v2 07/16] tracepoint: Mark __do_trace_##name() notrace
Date: Thu, 22 Oct 2026 18:10:40 -0700 [thread overview]
Message-ID: <20261023011049.1164625-8-song@kernel.org> (raw)
In-Reply-To: <20261023011049.1164625-1-song@kernel.org>
__do_trace_##name() takes the tracepoint SRCU read lock and calls the
probes. It is called from trace_##name(), trace_call__##name(), and the
notrace rust_do_trace_##name(). It is a plain inline function, so if
the compiler emits it out of line, that copy is untraced only because
inline implies notrace.
Mark it notrace explicitly. No functional change.
Assisted-by: Claude:claude-opus-5
Signed-off-by: Song Liu <song@kernel.org>
---
include/linux/tracepoint.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index e0d838c9ce93..1cd18b56c0a8 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -308,7 +308,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
#define __DECLARE_TRACE(name, proto, args, cond, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
- static inline void __do_trace_##name(proto) \
+ static inline void notrace __do_trace_##name(proto) \
{ \
TRACEPOINT_CHECK(name) \
if (cond) { \
@@ -332,7 +332,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
#define __DECLARE_TRACE_SYSCALL(name, proto, args, data_proto) \
__DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
- static inline void __do_trace_##name(proto) \
+ static inline void notrace __do_trace_##name(proto) \
{ \
TRACEPOINT_CHECK(name) \
guard(rcu_tasks_trace)(); \
--
2.53.0-Meta
next prev parent reply other threads:[~2026-10-23 1:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 1:10 [PATCH v2 00/16] Move notrace from inline to __always_inline Song Liu
2026-10-23 1:10 ` [PATCH v2 01/16] x86/paravirt: Mark native pv_ops helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 02/16] x86: Mark CPU state helpers used by resume and kexec notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 03/16] bpf: Mark bpf_spin_lock helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 04/16] bpf: Mark the BPF trampoline " Song Liu
2026-10-23 1:10 ` [PATCH v2 05/16] bpf: Mark the bpf_mem_alloc fast path " Song Liu
2026-10-23 1:10 ` [PATCH v2 06/16] u64_stats: Mark the update helpers used by BPF notrace Song Liu
2026-10-23 1:10 ` Song Liu [this message]
2026-10-23 1:10 ` [PATCH v2 08/16] srcu: Mark the fast notrace read-side helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 09/16] arm64: Mark the preempt count " Song Liu
2026-10-23 1:10 ` [PATCH v2 10/16] powerpc, csky, mips, sh: Mark the accessors behind current notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 11/16] rcu: Mark the Tiny RCU rcu_is_watching() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 12/16] tracing: Mark the tracing_gen_ctx helpers notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 13/16] ktime: Mark ktime_to_ns() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 14/16] kallsyms: Mark the kernel text address checks notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 15/16] uaccess: Mark pagefault_disable() and pagefault_enable() notrace Song Liu
2026-10-23 1:10 ` [PATCH v2 16/16] compiler_types: Move notrace from inline to __always_inline Song Liu
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