linux-hardening - [PATCH v4 3/3] tools/kvm_stat: use canonical ftrace path

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Message-Id: <20230313211746.1541525-3-zwisler@kernel.org>
Date:   Mon, 13 Mar 2023 15:17:45 -0600
From:   Ross Zwisler <zwisler@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ross Zwisler <zwisler@...gle.com>,
        "Tobin C. Harding" <me@...in.cc>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tycho Andersen <tycho@...ho.pizza>, kvm@...r.kernel.org,
        linux-hardening@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-mm@...ck.org, linux-trace-kernel@...r.kernel.org,
        Mukesh Ojha <quic_mojha@...cinc.com>
Subject: [PATCH v4 3/3] tools/kvm_stat: use canonical ftrace path

From: Ross Zwisler <zwisler@...gle.com>

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.

Acked-by: Paolo Bonzini <pbonzini@...hat.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>
Reviewed-by: Mukesh Ojha <quic_mojha@...cinc.com>
Signed-off-by: Ross Zwisler <zwisler@...gle.com>
---
 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.
 
-- 
2.40.0.rc1.284.g88254d51c5-goog