Re: [PATCH v2 02/19] kernel: Use trace_call__##name() at guarded tracepoint call sites
From: Thomas Gleixner
Date: Wed Mar 25 2026 - 13:22:08 EST
On Mon, Mar 23 2026 at 12:00, Vineeth Pillai wrote:
> Replace trace_foo() with the new trace_call__foo() at sites already
> guarded by trace_foo_enabled(), avoiding a redundant
> static_branch_unlikely() re-evaluation inside the tracepoint.
> trace_call__foo() calls the tracepoint callbacks directly without
> utilizing the static branch again.
>
> Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Signed-off-by: Vineeth Pillai (Google) <vineeth@xxxxxxxxxxxxxxx>
> Assisted-by: Claude:claude-sonnet-4-6
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxx>