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| author | Paul E. McKenney <paulmck@kernel.org> | 2021-07-14 15:53:51 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-09-16 19:27:48 +0200 |
| commit | c3d0258d5af2a50529e8928fe458344e38653d25 (patch) | |
| tree | a50b1bf33d5a85e1a5322df151dbec9aa87f915a /kernel/scftorture.c | |
| parent | scftorture: Account for weight_resched when checking for all zeroes (diff) | |
| download | linux-c3d0258d5af2a50529e8928fe458344e38653d25.tar.xz linux-c3d0258d5af2a50529e8928fe458344e38653d25.zip | |
scftorture: Count reschedule IPIs
Currently, only those IPIs that invoke scftorture's scf_handler()
IPI handler function are counted. This means that runs exercising
only scftorture.weight_resched will look like they have made no forward
progress, resulting in "GP HANG" complaints from the rcutorture scripting.
This commit therefore increments the scf_invoked_count per-CPU counter
immediately after calling resched_cpu().
Fixes: 1ac78b49d61d4 ("scftorture: Add an alternative IPI vector")
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/scftorture.c')
| -rw-r--r-- | kernel/scftorture.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/scftorture.c b/kernel/scftorture.c index 74348abc792b..00bba2bdd4d1 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -341,6 +341,7 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra cpu = torture_random(trsp) % nr_cpu_ids; scfp->n_resched++; resched_cpu(cpu); + this_cpu_inc(scf_invoked_count); } break; case SCF_PRIM_SINGLE: |