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authorEmilio G. Cota <cota@braap.org>2018-08-19 05:13:31 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2018-08-23 18:46:25 +0200
commit685cc7c0ec7a142371ac9b10bf88faf838ec52cc (patch)
tree48e21165685f39455af1c7297e05656d2984d8c3 /tests/test-rcu-list.c
parent23311b81820767f156500744ff5fa84f56bc7fd1 (diff)
test-rcu-list: abstract the list implementation
So that we can test other implementations. Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <20180819091335.22863-8-cota@braap.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tests/test-rcu-list.c')
-rw-r--r--tests/test-rcu-list.c42
1 files changed, 30 insertions, 12 deletions
diff --git a/tests/test-rcu-list.c b/tests/test-rcu-list.c
index b4ed130081..f4f2a078b9 100644
--- a/tests/test-rcu-list.c
+++ b/tests/test-rcu-list.c
@@ -82,9 +82,16 @@ static void wait_all_threads(void)
n_threads = 0;
}
+#ifndef TEST_LIST_TYPE
+#define TEST_LIST_TYPE 1
+#endif
struct list_element {
+#if TEST_LIST_TYPE == 1
QLIST_ENTRY(list_element) entry;
+#else
+#error Invalid TEST_LIST_TYPE
+#endif
struct rcu_head rcu;
};
@@ -96,8 +103,19 @@ static void reclaim_list_el(struct rcu_head *prcu)
n_reclaims++;
}
+#if TEST_LIST_TYPE == 1
static QLIST_HEAD(q_list_head, list_element) Q_list_head;
+#define TEST_NAME "qlist"
+#define TEST_LIST_REMOVE_RCU QLIST_REMOVE_RCU
+#define TEST_LIST_INSERT_AFTER_RCU QLIST_INSERT_AFTER_RCU
+#define TEST_LIST_INSERT_HEAD_RCU QLIST_INSERT_HEAD_RCU
+#define TEST_LIST_FOREACH_RCU QLIST_FOREACH_RCU
+#define TEST_LIST_FOREACH_SAFE_RCU QLIST_FOREACH_SAFE_RCU
+#else
+#error Invalid TEST_LIST_TYPE
+#endif
+
static void *rcu_q_reader(void *arg)
{
long long n_reads_local = 0;
@@ -113,7 +131,7 @@ static void *rcu_q_reader(void *arg)
while (atomic_read(&goflag) == GOFLAG_RUN) {
rcu_read_lock();
- QLIST_FOREACH_RCU(el, &Q_list_head, entry) {
+ TEST_LIST_FOREACH_RCU(el, &Q_list_head, entry) {
n_reads_local++;
if (atomic_read(&goflag) == GOFLAG_STOP) {
break;
@@ -150,10 +168,10 @@ static void *rcu_q_updater(void *arg)
target_el = select_random_el(RCU_Q_LEN);
j = 0;
/* FOREACH_RCU could work here but let's use both macros */
- QLIST_FOREACH_SAFE_RCU(prev_el, &Q_list_head, entry, el) {
+ TEST_LIST_FOREACH_SAFE_RCU(prev_el, &Q_list_head, entry, el) {
j++;
if (target_el == j) {
- QLIST_REMOVE_RCU(prev_el, entry);
+ TEST_LIST_REMOVE_RCU(prev_el, entry);
/* may be more than one updater in the future */
call_rcu1(&prev_el->rcu, reclaim_list_el);
n_removed_local++;
@@ -165,12 +183,12 @@ static void *rcu_q_updater(void *arg)
}
target_el = select_random_el(RCU_Q_LEN);
j = 0;
- QLIST_FOREACH_RCU(el, &Q_list_head, entry) {
+ TEST_LIST_FOREACH_RCU(el, &Q_list_head, entry) {
j++;
if (target_el == j) {
- prev_el = g_new(struct list_element, 1);
+ struct list_element *new_el = g_new(struct list_element, 1);
n_nodes += n_nodes_local;
- QLIST_INSERT_BEFORE_RCU(el, prev_el, entry);
+ TEST_LIST_INSERT_AFTER_RCU(el, new_el, entry);
break;
}
}
@@ -195,7 +213,7 @@ static void rcu_qtest_init(void)
srand(time(0));
for (i = 0; i < RCU_Q_LEN; i++) {
new_el = g_new(struct list_element, 1);
- QLIST_INSERT_HEAD_RCU(&Q_list_head, new_el, entry);
+ TEST_LIST_INSERT_HEAD_RCU(&Q_list_head, new_el, entry);
}
qemu_mutex_lock(&counts_mutex);
n_nodes += RCU_Q_LEN;
@@ -230,8 +248,8 @@ static void rcu_qtest(const char *test, int duration, int nreaders)
create_thread(rcu_q_updater);
rcu_qtest_run(duration, nreaders);
- QLIST_FOREACH_SAFE_RCU(prev_el, &Q_list_head, entry, el) {
- QLIST_REMOVE_RCU(prev_el, entry);
+ TEST_LIST_FOREACH_SAFE_RCU(prev_el, &Q_list_head, entry, el) {
+ TEST_LIST_REMOVE_RCU(prev_el, entry);
call_rcu1(&prev_el->rcu, reclaim_list_el);
n_removed_local++;
}
@@ -290,9 +308,9 @@ int main(int argc, char *argv[])
} else {
gtest_seconds = 20;
}
- g_test_add_func("/rcu/qlist/single-threaded", gtest_rcuq_one);
- g_test_add_func("/rcu/qlist/short-few", gtest_rcuq_few);
- g_test_add_func("/rcu/qlist/long-many", gtest_rcuq_many);
+ g_test_add_func("/rcu/"TEST_NAME"/single-threaded", gtest_rcuq_one);
+ g_test_add_func("/rcu/"TEST_NAME"/short-few", gtest_rcuq_few);
+ g_test_add_func("/rcu/"TEST_NAME"/long-many", gtest_rcuq_many);
g_test_in_charge = 1;
return g_test_run();
}