locking/locktorture: Fix rwsem reader_delay

We should account for nreader threads, not writers in this
callback. Could even trigger a div by 0 if the user explicitly
disables writers.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c
index 617cea2520b3..a307a79e6b0b 100644
--- a/kernel/locking/locktorture.c
+++ b/kernel/locking/locktorture.c
@@ -560,7 +560,7 @@ static void torture_rwsem_read_delay(struct torture_random_state *trsp)
 
         /* We want a long delay occasionally to force massive contention.  */
         if (!(torture_random(trsp) %
-              (cxt.nrealwriters_stress * 2000 * longdelay_ms)))
+              (cxt.nrealreaders_stress * 2000 * longdelay_ms)))
                 mdelay(longdelay_ms * 2);
         else
                 mdelay(longdelay_ms / 2);