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| author | Davidlohr Bueso <dave@stgolabs.net> | 2014-09-11 21:41:30 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-16 13:41:36 -0700 |
| commit | 4a3b427f0b27c7e15edfa607524ff012a155337a (patch) | |
| tree | 7277b03eb68e8d552c6698ff186c4a5d2c0aa687 /Documentation/locking | |
| parent | 4f6332c1dce9c64ef6bf93842067250dd850e482 (diff) | |
| download | linux-4a3b427f0b27c7e15edfa607524ff012a155337a.tar.gz linux-4a3b427f0b27c7e15edfa607524ff012a155337a.tar.bz2 linux-4a3b427f0b27c7e15edfa607524ff012a155337a.zip | |
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.txt | 2 |
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. |