| From: Ross Zwisler <zwisler@google.com> |
| Subject: tools/kvm_stat: use canonical ftrace path |
| Date: Mon, 13 Mar 2023 15:17:45 -0600 |
| |
| 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 |
| |
| A comment in kvm_stat still refers to this older debugfs path, so let's |
| update it to avoid confusion. |
| |
| Link: https://lkml.kernel.org/r/20230313211746.1541525-3-zwisler@kernel.org |
| Signed-off-by: Ross Zwisler <zwisler@google.com> |
| Acked-by: Paolo Bonzini <pbonzini@redhat.com> |
| Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
| Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com> |
| Cc: Mark Rutland <mark.rutland@arm.com> |
| Cc: Masami Hiramatsu <mhiramat@kernel.org> |
| Cc: Shuah Khan <shuah@kernel.org> |
| Cc: "Tobin C. Harding" <me@tobin.cc> |
| Cc: Tycho Andersen <tycho@tycho.pizza> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| tools/kvm/kvm_stat/kvm_stat | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/tools/kvm/kvm_stat/kvm_stat~tools-kvm_stat-use-canonical-ftrace-path |
| +++ a/tools/kvm/kvm_stat/kvm_stat |
| @@ -627,7 +627,7 @@ class TracepointProvider(Provider): |
| name)'. |
| |
| All available events have directories under |
| - /sys/kernel/debug/tracing/events/ which export information |
| + /sys/kernel/tracing/events/ which export information |
| about the specific event. Therefore, listing the dirs gives us |
| a list of all available events. |
| |
| _ |