diff options
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/refperf.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/kernel/rcu/refperf.c b/kernel/rcu/refperf.c index da7de9ac548d..2bfdcdcb6bd1 100644 --- a/kernel/rcu/refperf.c +++ b/kernel/rcu/refperf.c @@ -192,6 +192,31 @@ static struct ref_perf_ops srcu_ops = { .name = "srcu" }; +// Definitions for RCU Tasks ref perf testing: Empty read markers. +// These definitions also work for RCU Rude readers. +static void rcu_tasks_ref_perf_read_section(const int nloops) +{ + int i; + + for (i = nloops; i >= 0; i--) + continue; +} + +static void rcu_tasks_ref_perf_delay_section(const int nloops, const int udl, const int ndl) +{ + int i; + + for (i = nloops; i >= 0; i--) + un_delay(udl, ndl); +} + +static struct ref_perf_ops rcu_tasks_ops = { + .init = rcu_sync_perf_init, + .readsection = rcu_tasks_ref_perf_read_section, + .delaysection = rcu_tasks_ref_perf_delay_section, + .name = "rcu-tasks" +}; + // Definitions for RCU Tasks Trace ref perf testing. static void rcu_trace_ref_perf_read_section(const int nloops) { @@ -613,7 +638,8 @@ ref_perf_init(void) long i; int firsterr = 0; static struct ref_perf_ops *perf_ops[] = { - &rcu_ops, &srcu_ops, &rcu_trace_ops, &refcnt_ops, &rwlock_ops, &rwsem_ops, + &rcu_ops, &srcu_ops, &rcu_trace_ops, &rcu_tasks_ops, + &refcnt_ops, &rwlock_ops, &rwsem_ops, }; if (!torture_init_begin(perf_type, verbose)) |