diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-07-18 14:32:31 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-08-29 09:20:48 -0700 |
| commit | 1b27291b1ea4f1f2090fb07c3425db474cdb99ba (patch) | |
| tree | 03f2f7c99cbb7888cb83af55adedb369762a61e6 /kernel/rcu/update.c | |
| parent | a52d14addf06c00cfca4f1698e254955942be754 (diff) | |
rcutorture: Add forward-progress tests for RCU grace periods
This commit adds a kthread that loops going into and out of RCU
read-side critical sections, but also including a cond_resched(),
optionally guarded by a check of need_resched(), in that same loop.
This commit relies solely on rcu_torture_writer() progress to judge
the forward progress of grace periods.
Note that Tasks RCU and SRCU are exempted from forward-progress testing
due their (intentionally) less-robust forward-progress guarantees.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/update.c')
| -rw-r--r-- | kernel/rcu/update.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index 39cb23d22109..a6b860422d18 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -472,6 +472,7 @@ int rcu_jiffies_till_stall_check(void) } return till_stall_check * HZ + RCU_STALL_DELAY_DELTA; } +EXPORT_SYMBOL_GPL(rcu_jiffies_till_stall_check); void rcu_sysrq_start(void) { |