linux-kernel - Re: [PATCH v8 00/22] RV: Linear temporal logic monitors for RT application

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Message-ID: <20250516090713.VrZEEdqR@linutronix.de>
Date: Fri, 16 May 2025 11:07:13 +0200
From: Nam Cao <namcao@...utronix.de>
To: Ingo Molnar <mingo@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>,
	Gabriele Monaco <gmonaco@...hat.com>,
	linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org,
	john.ogness@...utronix.de, Petr Mladek <pmladek@...e.com>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H . Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v8 00/22] RV: Linear temporal logic monitors for RT
 application

On Fri, May 16, 2025 at 10:56:04AM +0200, Nam Cao wrote:
> On Fri, May 16, 2025 at 10:21:36AM +0200, Ingo Molnar wrote:
> > 
> > * Nam Cao <namcao@...utronix.de> wrote:
> > 
> > > Nam Cao (22):
> > >   x86/tracing: Remove redundant trace_pagefault_key
> > >   x86/tracing: Move page fault trace points to generic
> > 
> > Does the renaming of the tracepoint class from 'x86_exceptions' to
> > 'exceptions' have any negative effects on tooling?
> 
> No, tracepoint class name doesn't affect userspace. The tracepoints' names
> seen from userspace are the same after the patches:
> 	exceptions:page_fault_kernel
> 	exceptions:page_fault_user

Just in case of confusion, the "exceptions:" name is from the TRACE_SYSTEM
macro, not the class name.

Best regards,
Nam