[PATCH v4 0/2] tracing: Preserve repeated boot-time parameters and drain deferred trigger frees

[Wesley Atwell <atwellwea@gmail.com>]

Patch 1 preserves repeated boot-time tracing parameters by appending to
the existing parser buffers instead of overwriting earlier values, so
repeated command-line entries and Bootconfig array expansions work with
the delimited formats the parsers already consume.

Patch 2 fixes the deferred event-trigger free path so queued frees are
still drained if the cleanup kthread never comes up after boot.

v4:
 - drop the kernel-parameters.txt update from patch 1
 - move trace_append_boot_param() into trace.c and keep only the
   prototype in trace.h
 - capitalize the tracing patch subjects
 - rename trigger_start_kthread_locked() to trigger_create_kthread_locked()
 - change the failure comment to say "creation failed"

Wesley Atwell (2):
  tracing: Preserve repeated boot-time tracing parameters
  tracing: Drain deferred trigger frees if kthread creation fails

 kernel/trace/ftrace.c               | 12 +++--
 kernel/trace/trace.c                | 31 ++++++++++-
 kernel/trace/trace.h                |  2 +
 kernel/trace/trace_events.c         | 26 ++++++++--
 kernel/trace/trace_events_trigger.c | 79 ++++++++++++++++++++++++-----
 kernel/trace/trace_kprobe.c         |  3 +-
 6 files changed, 131 insertions(+), 22 deletions(-)

-- 
2.43.0