From: Boqun Feng Date: Sun, 12 Mar 2023 19:04:48 +0000 (-0700) Subject: locking: Reduce the number of locks in ww_mutex stress tests X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=60a1a64ec0c08e02f2cd4372cd3971e9d5eb2b37;p=linux.git locking: Reduce the number of locks in ww_mutex stress tests 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 Link: https://lore.kernel.org/oe-lkp/202302011445.9d99dae2-oliver.sang@intel.com Tested-by: Paul E. McKenney Acked-by: Peter Zijlstra (Intel) Signed-off-by: Boqun Feng --- diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c index 29dc253d03af7..93cca6e698600 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;