On June 17, 2025 1:41:07 PM EDT, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: >On Tue, Jun 17, 2025 at 01:36:14PM -0400, Steven Rostedt wrote: >> From: Steven Rostedt <rostedt@xxxxxxxxxxx> >> >> 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. > >I've always used /debug/tracing/ (because /debug is the right place to >mount debugfs). You're saying this is going away and will break all my >scripts?! You could mount tracefs in /tracing too: # mount -t tracefs nodev /tracing And update you scripts with a simple sed script. -- Steve
