linux-kernel - [for-linus][PATCH 0/7] tracing: Fixes for 5.14-rc2

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Date:   Fri, 23 Jul 2021 08:54:54 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Colin Ian King <colin.king@...onical.com>,
        Haoran Luo <www@...istudio.net>,
        Nicolas Saenz Julienne <nsaenzju@...hat.com>
Subject: [for-linus][PATCH 0/7] tracing: Fixes for 5.14-rc2


- Fix deadloop in ring buffer because of using stale "read" variable

- Fix synthetic event use of field_pos as boolean and not an index

- Fixed histogram special var "cpu" overriding event fields called "cpu"

- Cleaned up error prone logic in alloc_synth_event()

- Removed call to synchronize_rcu_tasks_rude() when not needed

- Removed redundant initialization of a local variable "ret"

- Fixed kernel crash when updating tracepoint callbacks of different
  priorities.


Colin Ian King (1):
      ftrace: Remove redundant initialization of variable ret

Haoran Luo (1):
      tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop.

Nicolas Saenz Julienne (1):
      ftrace: Avoid synchronize_rcu_tasks_rude() call when not necessary

Steven Rostedt (VMware) (4):
      tracing: Synthetic event field_pos is an index not a boolean
      tracing/histogram: Rename "cpu" to "common_cpu"
      tracing: Clean up alloc_synth_event()
      tracepoints: Update static_call before tp_funcs when adding a tracepoint

----
 Documentation/trace/histogram.rst |  2 +-
 kernel/trace/ftrace.c             |  5 +++--
 kernel/trace/ring_buffer.c        | 28 ++++++++++++++++++++++++----
 kernel/trace/trace.c              |  4 ++++
 kernel/trace/trace_events_hist.c  | 22 ++++++++++++++++------
 kernel/trace/trace_events_synth.c |  8 +++-----
 kernel/trace/trace_synth.h        |  2 +-
 kernel/tracepoint.c               |  2 +-
 8 files changed, 53 insertions(+), 20 deletions(-)