diff options
author | Paul E. McKenney <paulmck@kernel.org> | 2019-08-15 11:43:53 -0700 |
---|---|---|
committer | Paul E. McKenney <paulmck@kernel.org> | 2019-10-05 11:50:18 -0700 |
commit | fbbd5e358cecb5fa490550ace66463517a7577e8 (patch) | |
tree | c251b136d8d2b2f28b351d6bbbd3d31c97f2ce06 /kernel/locking | |
parent | 8b5ddf8b99dc42241d1d413c6685bce18275c40e (diff) |
rcutorture: Make in-kernel-loop testing more brutal
The rcu_torture_fwd_prog_nr() tests the ability of RCU to tolerate
in-kernel busy loops. It invokes rcu_torture_fwd_prog_cond_resched()
within its delay loop, which, in PREEMPT && NO_HZ_FULL kernels results
in the occasional direct call to schedule(). Now, this direct call to
schedule() is appropriate for call_rcu() flood testing, in which either
the kernel should restrain itself or userspace transitions will supply
the needed restraint. But in pure in-kernel loops, the occasional
cond_resched() should do the job.
This commit therefore makes rcu_torture_fwd_prog_nr() use cond_resched()
instead of rcu_torture_fwd_prog_cond_resched() in order to increase the
brutality of this aspect of rcutorture testing.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/locking')
0 files changed, 0 insertions, 0 deletions