1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * linux/include/linux/sunrpc/debug.h |
4 | * |
5 | * Debugging support for sunrpc module |
6 | * |
7 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> |
8 | */ |
9 | #ifndef _LINUX_SUNRPC_DEBUG_H_ |
10 | #define _LINUX_SUNRPC_DEBUG_H_ |
11 | |
12 | #include <uapi/linux/sunrpc/debug.h> |
13 | |
14 | /* |
15 | * Debugging macros etc |
16 | */ |
17 | #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) |
18 | extern unsigned int rpc_debug; |
19 | extern unsigned int nfs_debug; |
20 | extern unsigned int nfsd_debug; |
21 | extern unsigned int nlm_debug; |
22 | #endif |
23 | |
24 | #define dprintk(fmt, ...) \ |
25 | dfprintk(FACILITY, fmt, ##__VA_ARGS__) |
26 | #define dprintk_cont(fmt, ...) \ |
27 | dfprintk_cont(FACILITY, fmt, ##__VA_ARGS__) |
28 | #define dprintk_rcu(fmt, ...) \ |
29 | dfprintk_rcu(FACILITY, fmt, ##__VA_ARGS__) |
30 | #define dprintk_rcu_cont(fmt, ...) \ |
31 | dfprintk_rcu_cont(FACILITY, fmt, ##__VA_ARGS__) |
32 | |
33 | #undef ifdebug |
34 | #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) |
35 | # define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac)) |
36 | |
37 | # define dfprintk(fac, fmt, ...) \ |
38 | do { \ |
39 | ifdebug(fac) \ |
40 | printk(KERN_DEFAULT fmt, ##__VA_ARGS__); \ |
41 | } while (0) |
42 | |
43 | # define dfprintk_cont(fac, fmt, ...) \ |
44 | do { \ |
45 | ifdebug(fac) \ |
46 | printk(KERN_CONT fmt, ##__VA_ARGS__); \ |
47 | } while (0) |
48 | |
49 | # define dfprintk_rcu(fac, fmt, ...) \ |
50 | do { \ |
51 | ifdebug(fac) { \ |
52 | rcu_read_lock(); \ |
53 | printk(KERN_DEFAULT fmt, ##__VA_ARGS__); \ |
54 | rcu_read_unlock(); \ |
55 | } \ |
56 | } while (0) |
57 | |
58 | # define dfprintk_rcu_cont(fac, fmt, ...) \ |
59 | do { \ |
60 | ifdebug(fac) { \ |
61 | rcu_read_lock(); \ |
62 | printk(KERN_CONT fmt, ##__VA_ARGS__); \ |
63 | rcu_read_unlock(); \ |
64 | } \ |
65 | } while (0) |
66 | |
67 | # define RPC_IFDEBUG(x) x |
68 | #else |
69 | # define ifdebug(fac) if (0) |
70 | # define dfprintk(fac, fmt, ...) do {} while (0) |
71 | # define dfprintk_cont(fac, fmt, ...) do {} while (0) |
72 | # define dfprintk_rcu(fac, fmt, ...) do {} while (0) |
73 | # define RPC_IFDEBUG(x) |
74 | #endif |
75 | |
76 | /* |
77 | * Sysctl interface for RPC debugging |
78 | */ |
79 | |
80 | struct rpc_clnt; |
81 | struct rpc_xprt; |
82 | |
83 | #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) |
84 | void rpc_register_sysctl(void); |
85 | void rpc_unregister_sysctl(void); |
86 | void sunrpc_debugfs_init(void); |
87 | void sunrpc_debugfs_exit(void); |
88 | void rpc_clnt_debugfs_register(struct rpc_clnt *); |
89 | void rpc_clnt_debugfs_unregister(struct rpc_clnt *); |
90 | void rpc_xprt_debugfs_register(struct rpc_xprt *); |
91 | void rpc_xprt_debugfs_unregister(struct rpc_xprt *); |
92 | #else |
93 | static inline void |
94 | sunrpc_debugfs_init(void) |
95 | { |
96 | return; |
97 | } |
98 | |
99 | static inline void |
100 | sunrpc_debugfs_exit(void) |
101 | { |
102 | return; |
103 | } |
104 | |
105 | static inline void |
106 | rpc_clnt_debugfs_register(struct rpc_clnt *clnt) |
107 | { |
108 | return; |
109 | } |
110 | |
111 | static inline void |
112 | rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt) |
113 | { |
114 | return; |
115 | } |
116 | |
117 | static inline void |
118 | rpc_xprt_debugfs_register(struct rpc_xprt *xprt) |
119 | { |
120 | return; |
121 | } |
122 | |
123 | static inline void |
124 | rpc_xprt_debugfs_unregister(struct rpc_xprt *xprt) |
125 | { |
126 | return; |
127 | } |
128 | #endif |
129 | |
130 | #endif /* _LINUX_SUNRPC_DEBUG_H_ */ |
131 | |