On Mon, Feb 13, 2023 at 06:57:16PM -0800, Stanislav Fomichev wrote: > On 02/13, Ross Zwisler wrote: > > The canonical location for the tracefs filesystem is at > > /sys/kernel/tracing. > > > But, from Documentation/trace/ftrace.rst: > > > Before 4.1, all ftrace tracing control files were within the debugfs > > file system, which is typically located at /sys/kernel/debug/tracing. > > For backward compatibility, when mounting the debugfs file system, > > the tracefs file system will be automatically mounted at: > > > /sys/kernel/debug/tracing > > > Many comments and samples in the bpf code still refer to this older > > debugfs path, so let's update them to avoid confusion. There are a few > > spots where the bpf code explicitly checks both tracefs and debugfs > > (tools/bpf/bpftool/tracelog.c and tools/lib/api/fs/fs.c) and I've left > > those alone so that the tools can continue to work with both paths. > > Doesn't seem to apply cleanly to bpf-next? > > https://github.com/kernel-patches/bpf/pull/4584 Oh, apologies, I was using Linus's master branch as my baseline. I'll send out a v2.
