On 30.11.2016 01:35, Chris Wilson wrote:
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Maarten Lankhorst <d...@mblankhorst.nl>
Cc: Nicolai Hähnle <nhaeh...@gmail.com>
---
kernel/locking/Makefile | 1 +
kernel/locking/test-ww_mutex.c | 137 +++++++++++++++++++++++++++++++++++++++++
lib/Kconfig.debug | 10 +++
3 files changed, 148 insertions(+)
create mode 100644 kernel/locking/test-ww_mutex.c
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 6f88e352cd4f..760158d9d98d 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o
obj-$(CONFIG_LOCK_TORTURE_TEST) += locktorture.o
+obj-$(CONFIG_WW_MUTEX_SELFTEST) += test-ww_mutex.o
diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
new file mode 100644
index 000000000000..e94b807e06c2
--- /dev/null
+++ b/kernel/locking/test-ww_mutex.c
@@ -0,0 +1,137 @@
+/*
+ * Module-based API test facility for ww_mutexes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you can access it online at
+ * http://www.gnu.org/licenses/gpl-2.0.html.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kthread.h>
+#include <linux/ww_mutex.h>
+#include <linux/completion.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Intel Corporation");
+
+static DEFINE_WW_CLASS(ww_class);
+
+struct test_mutex {
+ struct work_struct work;
+ struct ww_mutex mutex;
+ struct completion ready, go, done;
+ unsigned flags;
+#define TEST_AB_SPIN BIT(0)
+#define TEST_AB_TRY BIT(1)
+};
Is it common to put #defines inside structs like that? It looks odd to
me. Apart from that, patches 1-4 all make sense to me.
Thanks,
Nicolai
