diff options
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 83bf054e194e..0e61b62e3f4a 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1225,6 +1225,12 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp, rdp->rsp->gp_start + 2 * jiffies_till_sched_qs) || ULONG_CMP_GE(jiffies, rdp->rsp->gp_start + jiffies_till_sched_qs)) resched_cpu(rdp->cpu); /* Force CPU into scheduler. */ + /* + * If more than halfway to RCU CPU stall-warning time, do + * a resched_cpu() to try to loosen things up a bit. + */ + if (jiffies - rdp->rsp->gp_start > rcu_jiffies_till_stall_check() / 2) + resched_cpu(rdp->cpu); return 0; } |