Re: [PATCH v2 4/6] tools/kvm_stat: use canonical ftrace path
From: Mukesh Ojha <hidden>
Date: 2023-02-17 15:41:26
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On 2/16/2023 4:03 AM, Ross Zwisler wrote:
quoted hunk ↗ jump to hunk
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. Signed-off-by: Ross Zwisler <redacted> --- tools/kvm/kvm_stat/kvm_stat | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 6f28180ffeea..15bf00e79e3f 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/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.
Reviewed-by: Mukesh Ojha <redacted> -Mukesh