rcutorture: Ignore attempts to test preemption and forward progress

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Use of the rcutorture preempt_duration and the default-on fwd_progress
kernel parameters can result in preemption of callback processing during
forward-progress testing, which is an excellent way to OOM your test
if your kernel offloads RCU callbacks.  This commit therefore treats
preempt_duration in the same way as stall_cpu in CONFIG_RCU_NOCB_CPU=y
kernels, prohibiting fwd_progress testing and splatting when rcutorture
is built in (as opposed to being a loadable module).

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>

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Paul E. McKenney 2024-11-06 12:19:35 -08:00 • committed by Uladzislau Rezki (Sony)

parent ec9d6356bf

commit a2ab1e4578

1 changed files with 3 additions and 3 deletions

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kernel/rcu/rcutorture.c

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