linux-kernel - [PATCH 0/3] tracepoint static call fixes

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Message-Id: <20210805132717.23813-1-mathieu.desnoyers@efficios.com>
Date:   Thu,  5 Aug 2021 09:27:14 -0400
From:   Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Stefan Metzmacher <metze@...ba.org>, stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: [PATCH 0/3] tracepoint static call fixes

This series fixes issues with tracepoint callback function vs data
argument mismatch when back-to-back registrations/unregistrations are
performed.

Those issues were introduced by the tracepoint optimizations using
static_call().

Thanks,

Mathieu

Mathieu Desnoyers (3):
  Fix: tracepoint: static call: compare data on transition from 2->1
    callees
  Fix: tracepoint: static call function vs data state mismatch (v2)
  Fix: tracepoint: rcu get state and cond sync for static call updates
    (v2)

 kernel/tracepoint.c | 159 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 139 insertions(+), 20 deletions(-)

-- 
2.17.1