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From: Steven Rostedt <rostedt@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [for-next][PATCH 6/7] tracing: Exit out immediately after update_marker_trace()
Date: Thu, 06 Nov 2025 16:03:37 -0500	[thread overview]
Message-ID: <20251106210357.828237507@kernel.org> (raw)
In-Reply-To: 20251106210331.537317097@kernel.org

From: Steven Rostedt <rostedt@goodmis.org>

The call to update_marker_trace() in set_tracer_flag() performs the update
to the tr->trace_flags. There's no reason to perform it again after it is
called. Return immediately instead.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://patch.msgid.link/20251106003501.726406870@kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ed929d331e1d..88234b541b09 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5254,8 +5254,11 @@ int set_tracer_flag(struct trace_array *tr, u64 mask, int enabled)
 		}
 	}
 
-	if (mask == TRACE_ITER(COPY_MARKER))
+	if (mask == TRACE_ITER(COPY_MARKER)) {
 		update_marker_trace(tr, enabled);
+		/* update_marker_trace updates the tr->trace_flags */
+		return 0;
+	}
 
 	if (enabled)
 		tr->trace_flags |= mask;
-- 
2.51.0



  parent reply	other threads:[~2025-11-06 21:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-06 21:03 [for-next][PATCH 0/7] tracing: Updates for v6.19 Steven Rostedt
2025-11-06 21:03 ` [for-next][PATCH 1/7] tracing: Allow tracer to add more than 32 options Steven Rostedt
2025-11-06 21:03 ` [for-next][PATCH 2/7] tracing: Add an option to show symbols in _text+offset for function profiler Steven Rostedt
2025-11-06 21:03 ` [for-next][PATCH 3/7] tracing: Hide __NR_utimensat and _NR_mq_timedsend when not defined Steven Rostedt
2025-11-06 21:03 ` [for-next][PATCH 4/7] tracing: Remove dummy options and flags Steven Rostedt
2025-11-06 21:03 ` [for-next][PATCH 5/7] tracing: Have add_tracer_options() error pass up to callers Steven Rostedt
2025-11-06 21:03 ` Steven Rostedt [this message]
2025-11-06 21:03 ` [for-next][PATCH 7/7] tracing: Use switch statement instead of ifs in set_tracer_flag() Steven Rostedt

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