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authorLai Jiangshan <laijs@cn.fujitsu.com>2012-03-19 16:12:14 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-04-30 10:48:26 -0700
commit9059c94017f748d9e20c3b089188a7abb27f6233 (patch)
treef4f4397f732ce690602519da8594fc5ac306b252 /kernel
parent931ea9d1a6e06a5e3af03aa4aaaa7c7fd90e163f (diff)
downloadlinux-9059c94017f748d9e20c3b089188a7abb27f6233.tar.gz
rcu: Add rcutorture test for call_srcu()
Add srcu_torture_deferred_free() for srcu_ops so as to test the new call_srcu(). Rename the original srcu_ops to srcu_sync_ops. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcutorture.c44
1 files changed, 40 insertions, 4 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index d10b179dea8..e66b34ab755 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -625,6 +625,11 @@ static int srcu_torture_completed(void)
return srcu_batches_completed(&srcu_ctl);
}
+static void srcu_torture_deferred_free(struct rcu_torture *rp)
+{
+ call_srcu(&srcu_ctl, &rp->rtort_rcu, rcu_torture_cb);
+}
+
static void srcu_torture_synchronize(void)
{
synchronize_srcu(&srcu_ctl);
@@ -654,7 +659,7 @@ static struct rcu_torture_ops srcu_ops = {
.read_delay = srcu_read_delay,
.readunlock = srcu_torture_read_unlock,
.completed = srcu_torture_completed,
- .deferred_free = rcu_sync_torture_deferred_free,
+ .deferred_free = srcu_torture_deferred_free,
.sync = srcu_torture_synchronize,
.call = NULL,
.cb_barrier = NULL,
@@ -662,6 +667,21 @@ static struct rcu_torture_ops srcu_ops = {
.name = "srcu"
};
+static struct rcu_torture_ops srcu_sync_ops = {
+ .init = srcu_torture_init,
+ .cleanup = srcu_torture_cleanup,
+ .readlock = srcu_torture_read_lock,
+ .read_delay = srcu_read_delay,
+ .readunlock = srcu_torture_read_unlock,
+ .completed = srcu_torture_completed,
+ .deferred_free = rcu_sync_torture_deferred_free,
+ .sync = srcu_torture_synchronize,
+ .call = NULL,
+ .cb_barrier = NULL,
+ .stats = srcu_torture_stats,
+ .name = "srcu_sync"
+};
+
static int srcu_torture_read_lock_raw(void) __acquires(&srcu_ctl)
{
return srcu_read_lock_raw(&srcu_ctl);
@@ -679,7 +699,7 @@ static struct rcu_torture_ops srcu_raw_ops = {
.read_delay = srcu_read_delay,
.readunlock = srcu_torture_read_unlock_raw,
.completed = srcu_torture_completed,
- .deferred_free = rcu_sync_torture_deferred_free,
+ .deferred_free = srcu_torture_deferred_free,
.sync = srcu_torture_synchronize,
.call = NULL,
.cb_barrier = NULL,
@@ -687,6 +707,21 @@ static struct rcu_torture_ops srcu_raw_ops = {
.name = "srcu_raw"
};
+static struct rcu_torture_ops srcu_raw_sync_ops = {
+ .init = srcu_torture_init,
+ .cleanup = srcu_torture_cleanup,
+ .readlock = srcu_torture_read_lock_raw,
+ .read_delay = srcu_read_delay,
+ .readunlock = srcu_torture_read_unlock_raw,
+ .completed = srcu_torture_completed,
+ .deferred_free = rcu_sync_torture_deferred_free,
+ .sync = srcu_torture_synchronize,
+ .call = NULL,
+ .cb_barrier = NULL,
+ .stats = srcu_torture_stats,
+ .name = "srcu_raw_sync"
+};
+
static void srcu_torture_synchronize_expedited(void)
{
synchronize_srcu_expedited(&srcu_ctl);
@@ -1685,7 +1720,7 @@ static int rcu_torture_barrier_init(void)
for (i = 0; i < n_barrier_cbs; i++) {
init_waitqueue_head(&barrier_cbs_wq[i]);
barrier_cbs_tasks[i] = kthread_run(rcu_torture_barrier_cbs,
- (void *)i,
+ (void *)(long)i,
"rcu_torture_barrier_cbs");
if (IS_ERR(barrier_cbs_tasks[i])) {
ret = PTR_ERR(barrier_cbs_tasks[i]);
@@ -1873,7 +1908,8 @@ rcu_torture_init(void)
static struct rcu_torture_ops *torture_ops[] =
{ &rcu_ops, &rcu_sync_ops, &rcu_expedited_ops,
&rcu_bh_ops, &rcu_bh_sync_ops, &rcu_bh_expedited_ops,
- &srcu_ops, &srcu_raw_ops, &srcu_expedited_ops,
+ &srcu_ops, &srcu_sync_ops, &srcu_raw_ops,
+ &srcu_raw_sync_ops, &srcu_expedited_ops,
&sched_ops, &sched_sync_ops, &sched_expedited_ops, };
mutex_lock(&fullstop_mutex);