tracing: kprobe-event: Return directly when trace kprobes is empty

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In enable_boot_kprobe_events(), it returns directly when trace kprobes is
empty, thereby reducing the function's execution time. This function may
otherwise wait for the event_mutex lock for tens of milliseconds on certain
machines, which is unnecessary when trace kprobes is empty.

Link: https://lore.kernel.org/all/20260127053848.108473-1-sunliming@linux.dev/

Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

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sunliming 2026-01-27 13:38:48 +08:00 • committed by Masami Hiramatsu (Google)

parent f76d1c41b6

commit b8121b9cdc

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kernel/trace/trace_kprobe.c

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