squash! scftorture: Add an alternative IPI vector
Only allow resched_cpu when scftorture is built in. This is a workaround.
Longer term, this should use real wakeups rather than resched_cpu().
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
diff --git a/kernel/scftorture.c b/kernel/scftorture.c
index 59bc29b..3fbb7a7 100644
--- a/kernel/scftorture.c
+++ b/kernel/scftorture.c
@@ -323,9 +323,11 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra
}
switch (scfsp->scfs_prim) {
case SCF_PRIM_RESCHED:
- cpu = torture_random(trsp) % nr_cpu_ids;
- scfp->n_resched++;
- resched_cpu(cpu);
+ if (IS_BUILTIN(CONFIG_SCF_TORTURE_TEST)) {
+ cpu = torture_random(trsp) % nr_cpu_ids;
+ scfp->n_resched++;
+ resched_cpu(cpu);
+ }
break;
case SCF_PRIM_SINGLE:
cpu = torture_random(trsp) % nr_cpu_ids;
@@ -534,7 +536,10 @@ static int __init scf_torture_init(void)
firsterr = -EINVAL;
goto unwind;
}
- scf_sel_add(weight_resched1, SCF_PRIM_RESCHED, false);
+ if (IS_BUILTIN(CONFIG_SCF_TORTURE_TEST))
+ scf_sel_add(weight_resched1, SCF_PRIM_RESCHED, false);
+ else if (weight_resched1)
+ VERBOSE_SCFTORTOUT_ERRSTRING("built as module, weight_resched ignored");
scf_sel_add(weight_single1, SCF_PRIM_SINGLE, false);
scf_sel_add(weight_single_wait1, SCF_PRIM_SINGLE, true);
scf_sel_add(weight_many1, SCF_PRIM_MANY, false);
