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| author |   Ross Zwisler <zwisler@chromium.org> | 2023-02-15 15:33:45 -0700 |
|---|---|---|
| committer |   Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-02-18 14:34:09 -0500 |
| commit | 2455f0e124d317dd08d337a7550a78a224d4ba41 (patch) | |
| tree | a26318d9852d06d95c8f68740fe5e3e7de3a4c1d /tools/lib/api | |
| parent | tracing/histogram: Fix stacktrace histogram Documententation (diff) | |
| download | wireguard-linux-2455f0e124d317dd08d337a7550a78a224d4ba41.tar.xz wireguard-linux-2455f0e124d317dd08d337a7550a78a224d4ba41.zip | |
tracing: Always use canonical ftrace path
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 Kconfig help messages in the tracing code still refer
to this older debugfs path, so let's update them to avoid confusion.
Link: https://lore.kernel.org/linux-trace-kernel/20230215223350.2658616-2-zwisler@google.com
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Ross Zwisler <zwisler@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/lib/api')
| -rw-r--r-- | tools/lib/api/fs/tracing_path.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c index b8e457c841ab..7ba3e81274e8 100644 --- a/tools/lib/api/fs/tracing_path.c +++ b/tools/lib/api/fs/tracing_path.c @@ -14,8 +14,8 @@ #include "tracing_path.h" static char tracing_mnt[PATH_MAX] = "/sys/kernel/debug"; -static char tracing_path[PATH_MAX] = "/sys/kernel/debug/tracing"; -static char tracing_events_path[PATH_MAX] = "/sys/kernel/debug/tracing/events"; +static char tracing_path[PATH_MAX] = "/sys/kernel/tracing"; +static char tracing_events_path[PATH_MAX] = "/sys/kernel/tracing/events"; static void __tracing_path_set(const char *tracing, const char *mountpoint) { |