root/include/linux/sunrpc/debug.h

INCLUDED FROM

/*
 * 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>


/*
 * Enable RPC debugging/profiling.
 */
#ifdef CONFIG_SUNRPC_DEBUG
#define  RPC_DEBUG
#endif
#ifdef CONFIG_TRACEPOINTS
#define RPC_TRACEPOINTS
#endif
/* #define  RPC_PROFILE */

/*
 * Debugging macros etc
 */
#ifdef RPC_DEBUG
extern unsigned int             rpc_debug;
extern unsigned int             nfs_debug;
extern unsigned int             nfsd_debug;
extern unsigned int             nlm_debug;
#endif

#define dprintk(args...)        dfprintk(FACILITY, ## args)
#define dprintk_rcu(args...)    dfprintk_rcu(FACILITY, ## args)

#undef ifdebug
#ifdef RPC_DEBUG                        
# define ifdebug(fac)           if (unlikely(rpc_debug & RPCDBG_##fac))

# define dfprintk(fac, args...) \
        do { \
                ifdebug(fac) \
                        printk(KERN_DEFAULT args); \
        } while (0)

# define dfprintk_rcu(fac, args...)     \
        do { \
                ifdebug(fac) { \
                        rcu_read_lock(); \
                        printk(KERN_DEFAULT args); \
                        rcu_read_unlock(); \
                } \
        } while (0)

# define RPC_IFDEBUG(x)         x
#else
# define ifdebug(fac)           if (0)
# define dfprintk(fac, args...) do {} while (0)
# define dfprintk_rcu(fac, args...)     do {} while (0)
# define RPC_IFDEBUG(x)
#endif

/*
 * Sysctl interface for RPC debugging
 */
#ifdef RPC_DEBUG
void            rpc_register_sysctl(void);
void            rpc_unregister_sysctl(void);
#endif

#endif /* _LINUX_SUNRPC_DEBUG_H_ */