rcu/torture: Change order of warning and trace dump

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Dumping a big ftrace buffer could lead to a RCU stall. So there is the
ftrace buffer and the stall information which needs to be printed. When
there is additionally a WARN_ON() which describes the reason for the ftrace
buffer dump and the WARN_ON() is executed _after_ ftrace buffer dump, the
information get lost in the middle of the RCU stall information.

Therefore print WARN_ON() message before dumping the ftrace buffer in
rcu_torture_writer().

[ paulmck: Add tracing_off() to avoid cruft from WARN(). ]

Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Reviewed-by: Benedikt Spranger <b.spranger@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

...

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Anna-Maria Behnsen 2022-04-11 17:19:03 +02:00 • committed by Paul E. McKenney

parent ab69d3c8b9

commit 14c0017c19

1 changed files with 2 additions and 1 deletions

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kernel/rcu/rcutorture.c

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