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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-02-26 12:14:51 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-05-13 17:03:01 -0700 |
| commit | da601c63fd3a3e6c30f85eefd5ee46397b5b439d (patch) | |
| tree | d822406631e006e403310c60436c9b0e751f0d83 /kernel/locking | |
| parent | 2f66dbc1e89c0eabd625c584f9b9602be58d1571 (diff) | |
| download | blackbird-obmc-linux-da601c63fd3a3e6c30f85eefd5ee46397b5b439d.tar.gz blackbird-obmc-linux-da601c63fd3a3e6c30f85eefd5ee46397b5b439d.zip | |
torture: Intensify locking test
The current lock_torture_writer() spends too much time sleeping and not
enough time hammering locks, as in an eight-CPU test will often only be
utilizing a CPU or two. This commit therefore makes lock_torture_writer()
sleep less and hammer more.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/locktorture.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c index f26b1a18e34e..b0d3e3c50672 100644 --- a/kernel/locking/locktorture.c +++ b/kernel/locking/locktorture.c @@ -219,7 +219,8 @@ static int lock_torture_writer(void *arg) set_user_nice(current, 19); do { - schedule_timeout_uninterruptible(1); + if ((torture_random(&rand) & 0xfffff) == 0) + schedule_timeout_uninterruptible(1); cur_ops->writelock(); if (WARN_ON_ONCE(lock_is_write_held)) lwsp->n_write_lock_fail++; |
