linux-kernel - [for-next][PATCH 00/11] tracing: Updates for v6.9

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Date: Wed, 21 Feb 2024 09:07:56 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: linux-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: [for-next][PATCH 00/11] tracing: Updates for v6.9


Steven Rostedt (Google) (5):
      eventfs: Add WARN_ON_ONCE() to checks in eventfs_root_lookup()
      eventfs: Create eventfs_root_inode to store dentry
      tracing: Have saved_cmdlines arrays all in one allocation
      tracing: Move open coded processing of tgid_map into helper function
      tracing: Move saved_cmdline code into trace_sched_switch.c

Vincent Donnefort (6):
      ring-buffer: Zero ring-buffer sub-buffers
      ring-buffer: Introducing ring-buffer mapping functions
      tracing: Add snapshot refcount
      tracing: Allow user-space mapping of the ring-buffer
      Documentation: tracing: Add ring-buffer mapping
      ring-buffer/selftest: Add ring-buffer mapping test

----
 Documentation/trace/index.rst                  |   1 +
 Documentation/trace/ring-buffer-map.rst        | 106 ++++
 fs/tracefs/event_inode.c                       |  70 ++-
 fs/tracefs/internal.h                          |   2 -
 include/linux/ring_buffer.h                    |   7 +
 include/uapi/linux/trace_mmap.h                |  48 ++
 kernel/trace/ring_buffer.c                     | 385 ++++++++++++-
 kernel/trace/trace.c                           | 743 +++++++------------------
 kernel/trace/trace.h                           |  19 +-
 kernel/trace/trace_events_trigger.c            |  58 +-
 kernel/trace/trace_sched_switch.c              | 515 +++++++++++++++++
 tools/testing/selftests/ring-buffer/Makefile   |   8 +
 tools/testing/selftests/ring-buffer/config     |   2 +
 tools/testing/selftests/ring-buffer/map_test.c | 273 +++++++++
 14 files changed, 1671 insertions(+), 566 deletions(-)
 create mode 100644 Documentation/trace/ring-buffer-map.rst
 create mode 100644 include/uapi/linux/trace_mmap.h
 create mode 100644 tools/testing/selftests/ring-buffer/Makefile
 create mode 100644 tools/testing/selftests/ring-buffer/config
 create mode 100644 tools/testing/selftests/ring-buffer/map_test.c