linux-kernel - Re: [RFC][PATCH] tracing: Deprecate auto-mounting tracefs in debugfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250618-freischaffend-gefunden-139c8c064797@brauner>
Date: Wed, 18 Jun 2025 11:18:56 +0200
From: Christian Brauner <brauner@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>, 
	Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>, 
	"linux-trace-users@...r.kernel.org" <linux-trace-users@...r.kernel.org>, linux-fsdevel@...r.kernel.org, linux-perf-users@...r.kernel.org, 
	Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Mark Rutland <mark.rutland@....com>, Peter Zijlstra <peterz@...radead.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, 
	Namhyung Kim <namhyung@...nel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Al Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Frederic Weisbecker <fweisbec@...il.com>, 
	Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>
Subject: Re: [RFC][PATCH] tracing: Deprecate auto-mounting tracefs in debugfs

On Tue, Jun 17, 2025 at 01:36:14PM -0400, Steven Rostedt wrote:
> From: Steven Rostedt <rostedt@...dmis.org>
> 
> In January 2015, tracefs was created to allow access to the tracing
> infrastructure without needing to compile in debugfs. When tracefs is
> configured, the directory /sys/kernel/tracing will exist and tooling is
> expected to use that path to access the tracing infrastructure.
> 
> To allow backward compatibility, when debugfs is mounted, it would
> automount tracefs in its "tracing" directory so that tooling that had hard
> coded /sys/kernel/debug/tracing would still work.
> 
> It has been over 10 years since the new interface was introduced, and all
> tooling should now be using it. Start the process of deprecating the old
> path so that it doesn't need to be maintained anymore.
> 
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
> ---

Sounds reasonable.