1 files changed, 130 insertions, 0 deletions
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
new file mode 100644
index 000000000..f6aeed07f
--- /dev/null
+++ b/include/linux/sunrpc/debug.h
@@ -0,0 +1,130 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/linux/sunrpc/debug.h
+ *
+ * Debugging support for sunrpc module
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+#ifndef _LINUX_SUNRPC_DEBUG_H_
+#define _LINUX_SUNRPC_DEBUG_H_
+
+#include <uapi/linux/sunrpc/debug.h>
+
+/*
+ * Debugging macros etc
+ */
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+extern unsigned int		rpc_debug;
+extern unsigned int		nfs_debug;
+extern unsigned int		nfsd_debug;
+extern unsigned int		nlm_debug;
+#endif
+
+#define dprintk(fmt, ...)						\
+	dfprintk(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_cont(fmt, ...)						\
+	dfprintk_cont(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_rcu(fmt, ...)						\
+	dfprintk_rcu(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_rcu_cont(fmt, ...)					\
+	dfprintk_rcu_cont(FACILITY, fmt, ##__VA_ARGS__)
+
+#undef ifdebug
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+# define ifdebug(fac)		if (unlikely(rpc_debug & RPCDBG_##fac))
+
+# define dfprintk(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac)							\
+		printk(KERN_DEFAULT fmt, ##__VA_ARGS__);		\
+} while (0)
+
+# define dfprintk_cont(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac)							\
+		printk(KERN_CONT fmt, ##__VA_ARGS__);			\
+} while (0)
+
+# define dfprintk_rcu(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac) {							\
+		rcu_read_lock();					\
+		printk(KERN_DEFAULT fmt, ##__VA_ARGS__);		\
+		rcu_read_unlock();					\
+	}								\
+} while (0)
+
+# define dfprintk_rcu_cont(fac, fmt, ...)				\
+do {									\
+	ifdebug(fac) {							\
+		rcu_read_lock();					\
+		printk(KERN_CONT fmt, ##__VA_ARGS__);			\
+		rcu_read_unlock();					\
+	}								\
+} while (0)
+
+# define RPC_IFDEBUG(x)		x
+#else
+# define ifdebug(fac)		if (0)
+# define dfprintk(fac, fmt, ...)	do {} while (0)
+# define dfprintk_cont(fac, fmt, ...)	do {} while (0)
+# define dfprintk_rcu(fac, fmt, ...)	do {} while (0)
+# define RPC_IFDEBUG(x)
+#endif
+
+/*
+ * Sysctl interface for RPC debugging
+ */
+
+struct rpc_clnt;
+struct rpc_xprt;
+
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+void		rpc_register_sysctl(void);
+void		rpc_unregister_sysctl(void);
+void		sunrpc_debugfs_init(void);
+void		sunrpc_debugfs_exit(void);
+void		rpc_clnt_debugfs_register(struct rpc_clnt *);
+void		rpc_clnt_debugfs_unregister(struct rpc_clnt *);
+void		rpc_xprt_debugfs_register(struct rpc_xprt *);
+void		rpc_xprt_debugfs_unregister(struct rpc_xprt *);
+#else
+static inline void
+sunrpc_debugfs_init(void)
+{
+	return;
+}
+
+static inline void
+sunrpc_debugfs_exit(void)
+{
+	return;
+}
+
+static inline void
+rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
+{
+	return;
+}
+
+static inline void
+rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
+{
+	return;
+}
+
+static inline void
+rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
+{
+	return;
+}
+
+static inline void
+rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt)
+{
+	return;
+}
+#endif
+
+#endif /* _LINUX_SUNRPC_DEBUG_H_ */