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 /*
  15  * Enable RPC debugging/profiling.
  16  */
  17 #ifdef CONFIG_SUNRPC_DEBUG
  18 #define  RPC_DEBUG
  19 #endif
  20 #ifdef CONFIG_TRACEPOINTS
  21 #define RPC_TRACEPOINTS
  22 #endif
  23 /* #define  RPC_PROFILE */
  24
  25 /*
  26  * Debugging macros etc
  27  */
  28 #ifdef RPC_DEBUG
  29 extern unsigned int             rpc_debug;
  30 extern unsigned int             nfs_debug;
  31 extern unsigned int             nfsd_debug;
  32 extern unsigned int             nlm_debug;
  33 #endif
  34
  35 #define dprintk(args...)        dfprintk(FACILITY, ## args)
  36 #define dprintk_rcu(args...)    dfprintk_rcu(FACILITY, ## args)
  37
  38 #undef ifdebug
  39 #ifdef RPC_DEBUG
  40 # define ifdebug(fac)           if (unlikely(rpc_debug & RPCDBG_##fac))
  41
  42 # define dfprintk(fac, args...) \
  43         do { \
  44                 ifdebug(fac) \
  45                         printk(KERN_DEFAULT args); \
  46         } while (0)
  47
  48 # define dfprintk_rcu(fac, args...)     \
  49         do { \
  50                 ifdebug(fac) { \
  51                         rcu_read_lock(); \
  52                         printk(KERN_DEFAULT args); \
  53                         rcu_read_unlock(); \
  54                 } \
  55         } while (0)
  56
  57 # define RPC_IFDEBUG(x)         x
  58 #else
  59 # define ifdebug(fac)           if (0)
  60 # define dfprintk(fac, args...) do {} while (0)
  61 # define dfprintk_rcu(fac, args...)     do {} while (0)
  62 # define RPC_IFDEBUG(x)
  63 #endif
  64
  65 /*
  66  * Sysctl interface for RPC debugging
  67  */
  68 #ifdef RPC_DEBUG
  69 void            rpc_register_sysctl(void);
  70 void            rpc_unregister_sysctl(void);
  71 #endif
  72
  73 #endif /* _LINUX_SUNRPC_DEBUG_H_ */