[PATCH v2 0/4] Clean up access to trace_event_file from a file struct

[Petr Pavlu <petr.pavlu@suse.com>]

This series includes several patches related to accessing
trace_event_file from a file struct. The first patch is a fix for an
edge case, the remaining patches are minor cleanups.

Changes since v1 [1]:
* Fix a compilation error when CONFIG_HIST_TRIGGERS is not set.
* Drop a patch that references the trace_event_file data in
  event_file_data() and keep the simpler implementation of storing the
  id in i_private.
* Inline event_file_data() into event_id_read() to enable adding
  additional checks to the former.

Petr Pavlu (4):
  tracing: Fix checking of freed trace_event_file for hist files
  tracing: Remove unnecessary check for EVENT_FILE_FL_FREED
  tracing: Clean up access to trace_event_file from a file pointer
  tracing: Free up file->private_data for use by individual events

 include/linux/trace_events.h     |  5 +++++
 kernel/trace/trace.c             |  2 --
 kernel/trace/trace.h             | 17 +++++++++++------
 kernel/trace/trace_events.c      | 17 ++++++++---------
 kernel/trace/trace_events_hist.c |  8 ++------
 5 files changed, 26 insertions(+), 23 deletions(-)


base-commit: cee73b1e840c154f64ace682cb477c1ae2e29cc4
-- 
2.52.0