Commit 60a1a64e authored by Boqun Feng's avatar Boqun Feng
Browse files

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: default avatarkernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/oe-lkp/202302011445.9d99dae2-oliver.sang@intel.com


Tested-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarBoqun Feng <boqun.feng@gmail.com>
parent f0f44752

kernel/locking/test-ww_mutex.c

+1 −1
Original line number Diff line number Diff line
@@ -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;