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-rw-r--r--lib/locking-selftest.c51
1 files changed, 34 insertions, 17 deletions
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index a899b3f0e2e5..4c24ac8a456c 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -58,10 +58,10 @@ static struct ww_mutex o, o2, o3;
* Normal standalone locks, for the circular and irq-context
* dependency tests:
*/
-static DEFINE_RAW_SPINLOCK(lock_A);
-static DEFINE_RAW_SPINLOCK(lock_B);
-static DEFINE_RAW_SPINLOCK(lock_C);
-static DEFINE_RAW_SPINLOCK(lock_D);
+static DEFINE_SPINLOCK(lock_A);
+static DEFINE_SPINLOCK(lock_B);
+static DEFINE_SPINLOCK(lock_C);
+static DEFINE_SPINLOCK(lock_D);
static DEFINE_RWLOCK(rwlock_A);
static DEFINE_RWLOCK(rwlock_B);
@@ -93,12 +93,12 @@ static DEFINE_RT_MUTEX(rtmutex_D);
* but X* and Y* are different classes. We do this so that
* we do not trigger a real lockup:
*/
-static DEFINE_RAW_SPINLOCK(lock_X1);
-static DEFINE_RAW_SPINLOCK(lock_X2);
-static DEFINE_RAW_SPINLOCK(lock_Y1);
-static DEFINE_RAW_SPINLOCK(lock_Y2);
-static DEFINE_RAW_SPINLOCK(lock_Z1);
-static DEFINE_RAW_SPINLOCK(lock_Z2);
+static DEFINE_SPINLOCK(lock_X1);
+static DEFINE_SPINLOCK(lock_X2);
+static DEFINE_SPINLOCK(lock_Y1);
+static DEFINE_SPINLOCK(lock_Y2);
+static DEFINE_SPINLOCK(lock_Z1);
+static DEFINE_SPINLOCK(lock_Z2);
static DEFINE_RWLOCK(rwlock_X1);
static DEFINE_RWLOCK(rwlock_X2);
@@ -138,10 +138,10 @@ static DEFINE_RT_MUTEX(rtmutex_Z2);
*/
#define INIT_CLASS_FUNC(class) \
static noinline void \
-init_class_##class(raw_spinlock_t *lock, rwlock_t *rwlock, \
+init_class_##class(spinlock_t *lock, rwlock_t *rwlock, \
struct mutex *mutex, struct rw_semaphore *rwsem)\
{ \
- raw_spin_lock_init(lock); \
+ spin_lock_init(lock); \
rwlock_init(rwlock); \
mutex_init(mutex); \
init_rwsem(rwsem); \
@@ -210,10 +210,10 @@ static void init_shared_classes(void)
* Shortcuts for lock/unlock API variants, to keep
* the testcases compact:
*/
-#define L(x) raw_spin_lock(&lock_##x)
-#define U(x) raw_spin_unlock(&lock_##x)
+#define L(x) spin_lock(&lock_##x)
+#define U(x) spin_unlock(&lock_##x)
#define LU(x) L(x); U(x)
-#define SI(x) raw_spin_lock_init(&lock_##x)
+#define SI(x) spin_lock_init(&lock_##x)
#define WL(x) write_lock(&rwlock_##x)
#define WU(x) write_unlock(&rwlock_##x)
@@ -1341,7 +1341,7 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion3_soft_wlock)
#define I2(x) \
do { \
- raw_spin_lock_init(&lock_##x); \
+ spin_lock_init(&lock_##x); \
rwlock_init(&rwlock_##x); \
mutex_init(&mutex_##x); \
init_rwsem(&rwsem_##x); \
@@ -2005,10 +2005,23 @@ static void ww_test_edeadlk_acquire_wrong_slow(void)
static void ww_test_spin_nest_unlocked(void)
{
- raw_spin_lock_nest_lock(&lock_A, &o.base);
+ spin_lock_nest_lock(&lock_A, &o.base);
U(A);
}
+/* This is not a deadlock, because we have X1 to serialize Y1 and Y2 */
+static void ww_test_spin_nest_lock(void)
+{
+ spin_lock(&lock_X1);
+ spin_lock_nest_lock(&lock_Y1, &lock_X1);
+ spin_lock(&lock_A);
+ spin_lock_nest_lock(&lock_Y2, &lock_X1);
+ spin_unlock(&lock_A);
+ spin_unlock(&lock_Y2);
+ spin_unlock(&lock_Y1);
+ spin_unlock(&lock_X1);
+}
+
static void ww_test_unneeded_slow(void)
{
WWAI(&t);
@@ -2226,6 +2239,10 @@ static void ww_tests(void)
dotest(ww_test_spin_nest_unlocked, FAILURE, LOCKTYPE_WW);
pr_cont("\n");
+ print_testname("spinlock nest test");
+ dotest(ww_test_spin_nest_lock, SUCCESS, LOCKTYPE_WW);
+ pr_cont("\n");
+
printk(" -----------------------------------------------------\n");
printk(" |block | try |context|\n");
printk(" -----------------------------------------------------\n");