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docs: ftrace: always use canonical ftrace path

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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 parts of Documentation still reference this older debugfs path, so
let's update them to avoid confusion.

Signed-off-by: Ross Zwisler <zwisler@google.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230125213251.2013791-1-zwisler@google.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Ross Zwisler
2023-01-25 14:32:51 -07:00
committed by Jonathan Corbet
parent b05ada5615
commit 2abfcd293b
22 changed files with 266 additions and 266 deletions
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4
Documentation/core-api/workqueue.rst
View File

@@ -370,8 +370,8 @@ of possible problems:
The first one can be tracked using tracing: ::
$ echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event
$ cat /sys/kernel/debug/tracing/trace_pipe > out.txt
$ echo workqueue:workqueue_queue_work > /sys/kernel/tracing/set_event
$ cat /sys/kernel/tracing/trace_pipe > out.txt
(wait a few secs)
^C