Move timekeeping blacklisting to a header file

[deliverable/lttng-modules.git] / blacklist / timekeeping.h

diff --git a/blacklist/timekeeping.h b/blacklist/timekeeping.h
new file mode 100644 (file)
index 0000000..f9405ea
--- /dev/null
+++ b/blacklist/timekeeping.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
+ *
+ * blacklist/timekeeping.h
+ *
+ * Blacklist of kernel for buggy timekeeping implementation.
+ *
+ * Copyright (C) 2019 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
+ */
+
+#ifndef _LTTNG_BLACKLIST_TIMEKEEPING_H
+#define _LTTNG_BLACKLIST_TIMEKEEPING_H
+
+#include <lttng-kernel-version.h>
+
+#if ((LTTNG_KERNEL_RANGE(3,10,0, 3,10,14) && !LTTNG_RHEL_KERNEL_RANGE(3,10,0,123,0,0, 3,10,14,0,0,0)) \
+       || LTTNG_KERNEL_RANGE(3,11,0, 3,11,3))
+# error "Linux kernels 3.10 and 3.11 introduce a deadlock in the timekeeping subsystem. Fixed by commit 7bd36014460f793c19e7d6c94dab67b0afcfcb7f \"timekeeping: Fix HRTICK related deadlock from ntp lock changes\" in Linux."
+#endif
+
+#endif /* _LTTNG_BLACKLIST_TIMEKEEPING_H */