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[rcu,v2,3/7] locking: Reduce the number of locks in ww_mutex stress tests

Message ID 20230323042614.1191120-4-boqun.feng@gmail.com
State New
Headers
Series RCU-related lockdep changes for v6.4 |

Commit Message

Boqun Feng March 23, 2023, 4:26 a.m. UTC 
  The stress test in test_ww_mutex_init() uses 4095 locks since
lockdep::reference has 12 bits, and since we are going to reduce it to
11 bits to support lock_sync(), and 2047 is still a reasonable number of
the max nesting level for locks, so adjust the test.

Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/oe-lkp/202302011445.9d99dae2-oliver.sang@intel.com
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
---
 kernel/locking/test-ww_mutex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
index 29dc253d03af..93cca6e69860 100644
--- a/kernel/locking/test-ww_mutex.c
+++ b/kernel/locking/test-ww_mutex.c
@@ -659,7 +659,7 @@  static int __init test_ww_mutex_init(void)
 	if (ret)
 		return ret;
 
-	ret = stress(4095, hweight32(STRESS_ALL)*ncpus, STRESS_ALL);
+	ret = stress(2047, hweight32(STRESS_ALL)*ncpus, STRESS_ALL);
 	if (ret)
 		return ret;