diff options
| -rw-r--r-- | Documentation/RCU/torture.txt | 3 | ||||
| -rw-r--r-- | kernel/rcutorture.c | 55 |
2 files changed, 24 insertions, 34 deletions
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt index 4205ed1f8adc..783d6c134d3f 100644 --- a/Documentation/RCU/torture.txt +++ b/Documentation/RCU/torture.txt @@ -122,6 +122,9 @@ torture_type The type of RCU to test, with string values as follows: "rcu_bh_sync": rcu_read_lock_bh(), rcu_read_unlock_bh(), and synchronize_rcu_bh(). + "rcu_bh_expedited": rcu_read_lock_bh(), rcu_read_unlock_bh(), + and synchronize_rcu_bh_expedited(). + "srcu": srcu_read_lock(), srcu_read_unlock() and synchronize_srcu(). diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 1d2415046154..75fca518888c 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -480,30 +480,6 @@ static void rcu_bh_torture_deferred_free(struct rcu_torture *p) call_rcu_bh(&p->rtort_rcu, rcu_torture_cb); } -struct rcu_bh_torture_synchronize { - struct rcu_head head; - struct completion completion; -}; - -static void rcu_bh_torture_wakeme_after_cb(struct rcu_head *head) -{ - struct rcu_bh_torture_synchronize *rcu; - - rcu = container_of(head, struct rcu_bh_torture_synchronize, head); - complete(&rcu->completion); -} - -static void rcu_bh_torture_synchronize(void) -{ - struct rcu_bh_torture_synchronize rcu; - - init_rcu_head_on_stack(&rcu.head); - init_completion(&rcu.completion); - call_rcu_bh(&rcu.head, rcu_bh_torture_wakeme_after_cb); - wait_for_completion(&rcu.completion); - destroy_rcu_head_on_stack(&rcu.head); -} - static struct rcu_torture_ops rcu_bh_ops = { .init = NULL, .cleanup = NULL, @@ -512,7 +488,7 @@ static struct rcu_torture_ops rcu_bh_ops = { .readunlock = rcu_bh_torture_read_unlock, .completed = rcu_bh_torture_completed, .deferred_free = rcu_bh_torture_deferred_free, - .sync = rcu_bh_torture_synchronize, + .sync = synchronize_rcu_bh, .cb_barrier = rcu_barrier_bh, .fqs = rcu_bh_force_quiescent_state, .stats = NULL, @@ -528,7 +504,7 @@ static struct rcu_torture_ops rcu_bh_sync_ops = { .readunlock = rcu_bh_torture_read_unlock, .completed = rcu_bh_torture_completed, .deferred_free = rcu_sync_torture_deferred_free, - .sync = rcu_bh_torture_synchronize, + .sync = synchronize_rcu_bh, .cb_barrier = NULL, .fqs = rcu_bh_force_quiescent_state, .stats = NULL, @@ -536,6 +512,22 @@ static struct rcu_torture_ops rcu_bh_sync_ops = { .name = "rcu_bh_sync" }; +static struct rcu_torture_ops rcu_bh_expedited_ops = { + .init = rcu_sync_torture_init, + .cleanup = NULL, + .readlock = rcu_bh_torture_read_lock, + .read_delay = rcu_read_delay, /* just reuse rcu's version. */ + .readunlock = rcu_bh_torture_read_unlock, + .completed = rcu_bh_torture_completed, + .deferred_free = rcu_sync_torture_deferred_free, + .sync = synchronize_rcu_bh_expedited, + .cb_barrier = NULL, + .fqs = rcu_bh_force_quiescent_state, + .stats = NULL, + .irq_capable = 1, + .name = "rcu_bh_expedited" +}; + /* * Definitions for srcu torture testing. */ @@ -659,11 +651,6 @@ static void rcu_sched_torture_deferred_free(struct rcu_torture *p) call_rcu_sched(&p->rtort_rcu, rcu_torture_cb); } -static void sched_torture_synchronize(void) -{ - synchronize_sched(); -} - static struct rcu_torture_ops sched_ops = { .init = rcu_sync_torture_init, .cleanup = NULL, @@ -672,7 +659,7 @@ static struct rcu_torture_ops sched_ops = { .readunlock = sched_torture_read_unlock, .completed = rcu_no_completed, .deferred_free = rcu_sched_torture_deferred_free, - .sync = sched_torture_synchronize, + .sync = synchronize_sched, .cb_barrier = rcu_barrier_sched, .fqs = rcu_sched_force_quiescent_state, .stats = NULL, @@ -688,7 +675,7 @@ static struct rcu_torture_ops sched_sync_ops = { .readunlock = sched_torture_read_unlock, .completed = rcu_no_completed, .deferred_free = rcu_sync_torture_deferred_free, - .sync = sched_torture_synchronize, + .sync = synchronize_sched, .cb_barrier = NULL, .fqs = rcu_sched_force_quiescent_state, .stats = NULL, @@ -1425,7 +1412,7 @@ rcu_torture_init(void) int firsterr = 0; static struct rcu_torture_ops *torture_ops[] = { &rcu_ops, &rcu_sync_ops, &rcu_expedited_ops, - &rcu_bh_ops, &rcu_bh_sync_ops, + &rcu_bh_ops, &rcu_bh_sync_ops, &rcu_bh_expedited_ops, &srcu_ops, &srcu_expedited_ops, &sched_ops, &sched_sync_ops, &sched_expedited_ops, }; |