Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | paulmck@kernel ... | Subject | [PATCH tip/core/rcu 17/19] scftorture: Adapt memory-ordering test to UP operation | Date | Mon, 31 Aug 2020 11:07:47 -0700 |
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From: "Paul E. McKenney" <paulmck@kernel.org>
On uniprocessor systems, smp_call_function() does nothing. This commit therefore avoids complaining about the lack of handler accesses in the single-CPU case where there is no handler.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/scftorture.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/scftorture.c b/kernel/scftorture.c index 04d3a42..fc22bcc 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -363,7 +363,8 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra scfcp->scfc_out = true; } if (scfcp && scfsp->scfs_wait) { - if (WARN_ON_ONCE(!scfcp->scfc_out)) + if (WARN_ON_ONCE((num_online_cpus() > 1 || scfsp->scfs_prim == SCF_PRIM_SINGLE) && + !scfcp->scfc_out)) atomic_inc(&n_mb_out_errs); // Leak rather than trash! else kfree(scfcp); -- 2.9.5
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