[PATCH 03/11] tools/kernel.h: extend with dummy RCU functions

From: Sasha Levin
Date: Mon Feb 17 2020 - 21:41:52 EST


These calls were added by 108c14858b9e ("locking/lockdep: Add support
for dynamic keys") and require no special handling in userspace, so just
add empty function definitions.

Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/include/linux/kernel.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index cba226948a0ce..d2b3e1cc0218e 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -119,4 +119,11 @@ int scnprintf_pad(char * buf, size_t size, const char * fmt, ...);
#define current_gfp_context(k) 0
#define synchronize_rcu()

+static __maybe_unused int system_state;
+#define SYSTEM_SCHEDULING 0
+
+#define might_sleep()
+#define rcu_read_lock()
+#define rcu_read_unlock()
+
#endif
--
2.20.1