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authorDavidlohr Bueso <dave@stgolabs.net>2014-09-11 21:41:30 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-09-16 13:41:36 -0700
commit4a3b427f0b27c7e15edfa607524ff012a155337a (patch)
tree7277b03eb68e8d552c6698ff186c4a5d2c0aa687 /Documentation/locking
parent4f6332c1dce9c64ef6bf93842067250dd850e482 (diff)
locktorture: Support rwsems
We can easily do so with our new reader lock support. Just an arbitrary design default: readers have higher (5x) critical region latencies than writers: 50 ms and 10 ms, respectively. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/locking')
-rw-r--r--Documentation/locking/locktorture.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/locking/locktorture.txt b/Documentation/locking/locktorture.txt
index 7a72621b924f..be715015e0f7 100644
--- a/Documentation/locking/locktorture.txt
+++ b/Documentation/locking/locktorture.txt
@@ -47,6 +47,8 @@ torture_type Type of lock to torture. By default, only spinlocks will
o "mutex_lock": mutex_lock() and mutex_unlock() pairs.
+ o "rwsem_lock": read/write down() and up() semaphore pairs.
+
torture_runnable Start locktorture at boot time in the case where the
module is built into the kernel, otherwise wait for
torture_runnable to be set via sysfs before starting.