use DEFINE_STATIC_SRCU() to simplify the rcutorture.c

Signed-off-by: Lai Jiangshan <[email protected]>
---
 kernel/rcutorture.c |   41 ++++++-----------------------------------
 1 files changed, 6 insertions(+), 35 deletions(-)

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 25b1503..7939edf 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -332,7 +332,6 @@ rcu_stutter_wait(char *title)
 
 struct rcu_torture_ops {
        void (*init)(void);
-       void (*cleanup)(void);
        int (*readlock)(void);
        void (*read_delay)(struct rcu_random_state *rrsp);
        void (*readunlock)(int idx);
@@ -424,7 +423,6 @@ static void rcu_torture_deferred_free(struct rcu_torture *p)
 
 static struct rcu_torture_ops rcu_ops = {
        .init           = NULL,
-       .cleanup        = NULL,
        .readlock       = rcu_torture_read_lock,
        .read_delay     = rcu_read_delay,
        .readunlock     = rcu_torture_read_unlock,
@@ -468,7 +466,6 @@ static void rcu_sync_torture_init(void)
 
 static struct rcu_torture_ops rcu_sync_ops = {
        .init           = rcu_sync_torture_init,
-       .cleanup        = NULL,
        .readlock       = rcu_torture_read_lock,
        .read_delay     = rcu_read_delay,
        .readunlock     = rcu_torture_read_unlock,
@@ -486,7 +483,6 @@ static struct rcu_torture_ops rcu_sync_ops = {
 
 static struct rcu_torture_ops rcu_expedited_ops = {
        .init           = rcu_sync_torture_init,
-       .cleanup        = NULL,
        .readlock       = rcu_torture_read_lock,
        .read_delay     = rcu_read_delay,  /* just reuse rcu's version. */
        .readunlock     = rcu_torture_read_unlock,
@@ -529,7 +525,6 @@ static void rcu_bh_torture_deferred_free(struct rcu_torture 
*p)
 
 static struct rcu_torture_ops rcu_bh_ops = {
        .init           = NULL,
-       .cleanup        = NULL,
        .readlock       = rcu_bh_torture_read_lock,
        .read_delay     = rcu_read_delay,  /* just reuse rcu's version. */
        .readunlock     = rcu_bh_torture_read_unlock,
@@ -546,7 +541,6 @@ static struct rcu_torture_ops rcu_bh_ops = {
 
 static struct rcu_torture_ops rcu_bh_sync_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,
@@ -563,7 +557,6 @@ static struct rcu_torture_ops rcu_bh_sync_ops = {
 
 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,
@@ -582,19 +575,7 @@ static struct rcu_torture_ops rcu_bh_expedited_ops = {
  * Definitions for srcu torture testing.
  */
 
-static struct srcu_struct srcu_ctl;
-
-static void srcu_torture_init(void)
-{
-       init_srcu_struct(&srcu_ctl);
-       rcu_sync_torture_init();
-}
-
-static void srcu_torture_cleanup(void)
-{
-       synchronize_srcu(&srcu_ctl);
-       cleanup_srcu_struct(&srcu_ctl);
-}
+DEFINE_STATIC_SRCU(srcu_ctl);
 
 static int srcu_torture_read_lock(void) __acquires(&srcu_ctl)
 {
@@ -665,8 +646,7 @@ static int srcu_torture_stats(char *page)
 }
 
 static struct rcu_torture_ops srcu_ops = {
-       .init           = srcu_torture_init,
-       .cleanup        = srcu_torture_cleanup,
+       .init           = rcu_sync_torture_init,
        .readlock       = srcu_torture_read_lock,
        .read_delay     = srcu_read_delay,
        .readunlock     = srcu_torture_read_unlock,
@@ -680,8 +660,7 @@ static struct rcu_torture_ops srcu_ops = {
 };
 
 static struct rcu_torture_ops srcu_sync_ops = {
-       .init           = srcu_torture_init,
-       .cleanup        = srcu_torture_cleanup,
+       .init           = rcu_sync_torture_init,
        .readlock       = srcu_torture_read_lock,
        .read_delay     = srcu_read_delay,
        .readunlock     = srcu_torture_read_unlock,
@@ -705,8 +684,7 @@ static void srcu_torture_read_unlock_raw(int idx) 
__releases(&srcu_ctl)
 }
 
 static struct rcu_torture_ops srcu_raw_ops = {
-       .init           = srcu_torture_init,
-       .cleanup        = srcu_torture_cleanup,
+       .init           = rcu_sync_torture_init,
        .readlock       = srcu_torture_read_lock_raw,
        .read_delay     = srcu_read_delay,
        .readunlock     = srcu_torture_read_unlock_raw,
@@ -720,8 +698,7 @@ static struct rcu_torture_ops srcu_raw_ops = {
 };
 
 static struct rcu_torture_ops srcu_raw_sync_ops = {
-       .init           = srcu_torture_init,
-       .cleanup        = srcu_torture_cleanup,
+       .init           = rcu_sync_torture_init,
        .readlock       = srcu_torture_read_lock_raw,
        .read_delay     = srcu_read_delay,
        .readunlock     = srcu_torture_read_unlock_raw,
@@ -740,8 +717,7 @@ static void srcu_torture_synchronize_expedited(void)
 }
 
 static struct rcu_torture_ops srcu_expedited_ops = {
-       .init           = srcu_torture_init,
-       .cleanup        = srcu_torture_cleanup,
+       .init           = rcu_sync_torture_init,
        .readlock       = srcu_torture_read_lock,
        .read_delay     = srcu_read_delay,
        .readunlock     = srcu_torture_read_unlock,
@@ -776,7 +752,6 @@ static void rcu_sched_torture_deferred_free(struct 
rcu_torture *p)
 
 static struct rcu_torture_ops sched_ops = {
        .init           = rcu_sync_torture_init,
-       .cleanup        = NULL,
        .readlock       = sched_torture_read_lock,
        .read_delay     = rcu_read_delay,  /* just reuse rcu's version. */
        .readunlock     = sched_torture_read_unlock,
@@ -792,7 +767,6 @@ static struct rcu_torture_ops sched_ops = {
 
 static struct rcu_torture_ops sched_sync_ops = {
        .init           = rcu_sync_torture_init,
-       .cleanup        = NULL,
        .readlock       = sched_torture_read_lock,
        .read_delay     = rcu_read_delay,  /* just reuse rcu's version. */
        .readunlock     = sched_torture_read_unlock,
@@ -807,7 +781,6 @@ static struct rcu_torture_ops sched_sync_ops = {
 
 static struct rcu_torture_ops sched_expedited_ops = {
        .init           = rcu_sync_torture_init,
-       .cleanup        = NULL,
        .readlock       = sched_torture_read_lock,
        .read_delay     = rcu_read_delay,  /* just reuse rcu's version. */
        .readunlock     = sched_torture_read_unlock,
@@ -1903,8 +1876,6 @@ rcu_torture_cleanup(void)
 
        rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
 
-       if (cur_ops->cleanup)
-               cur_ops->cleanup();
        if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
                rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
        else if (n_online_successes != n_online_attempts ||
-- 
1.7.7.6

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