Merge tag 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux...
[deliverable/linux.git] / include / linux / sunrpc / debug.h
1 /*
2 * linux/include/linux/sunrpc/debug.h
3 *
4 * Debugging support for sunrpc module
5 *
6 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
7 */
8 #ifndef _LINUX_SUNRPC_DEBUG_H_
9 #define _LINUX_SUNRPC_DEBUG_H_
10
11 #include <uapi/linux/sunrpc/debug.h>
12
13 /*
14 * Debugging macros etc
15 */
16 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
17 extern unsigned int rpc_debug;
18 extern unsigned int nfs_debug;
19 extern unsigned int nfsd_debug;
20 extern unsigned int nlm_debug;
21 #endif
22
23 #define dprintk(args...) dfprintk(FACILITY, ## args)
24 #define dprintk_rcu(args...) dfprintk_rcu(FACILITY, ## args)
25
26 #undef ifdebug
27 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
28 # define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
29
30 # define dfprintk(fac, args...) \
31 do { \
32 ifdebug(fac) \
33 printk(KERN_DEFAULT args); \
34 } while (0)
35
36 # define dfprintk_rcu(fac, args...) \
37 do { \
38 ifdebug(fac) { \
39 rcu_read_lock(); \
40 printk(KERN_DEFAULT args); \
41 rcu_read_unlock(); \
42 } \
43 } while (0)
44
45 # define RPC_IFDEBUG(x) x
46 #else
47 # define ifdebug(fac) if (0)
48 # define dfprintk(fac, args...) do {} while (0)
49 # define dfprintk_rcu(fac, args...) do {} while (0)
50 # define RPC_IFDEBUG(x)
51 #endif
52
53 /*
54 * Sysctl interface for RPC debugging
55 */
56
57 struct rpc_clnt;
58 struct rpc_xprt;
59
60 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
61 void rpc_register_sysctl(void);
62 void rpc_unregister_sysctl(void);
63 void sunrpc_debugfs_init(void);
64 void sunrpc_debugfs_exit(void);
65 void rpc_clnt_debugfs_register(struct rpc_clnt *);
66 void rpc_clnt_debugfs_unregister(struct rpc_clnt *);
67 void rpc_xprt_debugfs_register(struct rpc_xprt *);
68 void rpc_xprt_debugfs_unregister(struct rpc_xprt *);
69 #else
70 static inline void
71 sunrpc_debugfs_init(void)
72 {
73 return;
74 }
75
76 static inline void
77 sunrpc_debugfs_exit(void)
78 {
79 return;
80 }
81
82 static inline void
83 rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
84 {
85 return;
86 }
87
88 static inline void
89 rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
90 {
91 return;
92 }
93
94 static inline void
95 rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
96 {
97 return;
98 }
99
100 static inline void
101 rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt)
102 {
103 return;
104 }
105 #endif
106
107 #endif /* _LINUX_SUNRPC_DEBUG_H_ */
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