iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tracing: Use the new eventfs descriptor for print trigger

Browse Source 
The check to create the print event "trigger" was using the obsolete "dir"
value of the trace_event_file to determine if it should create the trigger
or not. But that value will now be NULL because it uses the event file
descriptor.

Change it to test the "ef" field of the trace_event_file structure so that
the trace_marker "trigger" file appears again.

Link: https://lkml.kernel.org/r/20230908022001.371815239@goodmis.org

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ajay Kaher <akaher@vmware.com>
Fixes: 27152bceea1df ("eventfs: Move tracing/events to eventfs")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Google) 2023-09-07 22:19:11 -04:00
parent 95a404bd60
commit 1ef26d8b2c
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/trace/trace.c
View File

@ -9792,8 +9792,8 @@ init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer)
tr, &tracing_mark_fops);
file = __find_event_file(tr, "ftrace", "print");
if (file && file->dir)
trace_create_file("trigger", TRACE_MODE_WRITE, file->dir,
if (file && file->ef)
eventfs_add_file("trigger", TRACE_MODE_WRITE, file->ef,
file, &event_trigger_fops);
tr->trace_marker_file = file;