linux-kernel - [PATCH v2 0/5] tracing: Cleanups with use of guard() and _

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Message-ID: <20250801203722.072085868@kernel.org>
Date: Fri, 01 Aug 2025 16:37:22 -0400
From: Steven Rostedt <rostedt@...nel.org>
To: linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
 Mark Rutland <mark.rutland@....com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH v2 0/5] tracing: Cleanups with use of guard() and __free()

This is a cleanup to use guard() and __free() where possible.

Changes since v1: https://lore.kernel.org/linux-trace-kernel/20250801142506.431659758@kernel.org

- Do not use guard(preempt) for trace_event_buffer_lock_reserve() as that
  returns with preemption enabled between the disable and enable preempt.


Steven Rostedt (5):
      tracing: Remove unneeded goto out logic
      tracing: Add guard(ring_buffer_nest)
      tracing: Add guard() around locks and mutexes in trace.c
      tracing: Use __free(kfree) in trace.c to remove gotos
      ring-buffer: Convert ring_buffer_write() to use guard(preempt_notrace)

----
 include/linux/ring_buffer.h       |   3 +
 kernel/trace/ring_buffer.c        |  16 +--
 kernel/trace/trace.c              | 287 ++++++++++++++------------------------
 kernel/trace/trace_events_synth.c |   6 +-
 kernel/trace/trace_output.c       |  17 +--
 5 files changed, 114 insertions(+), 215 deletions(-)