#ifndef _LINUX_KERNEL_H#define _LINUX_KERNEL_H/* * 'kernel.h' contains some often-used function prototypes etc */#ifdef __KERNEL__#include <stdarg.h>#include <linux/linkage.h>#include <linux/stddef.h>#include <linux/types.h>/* Optimization barrier *//* The "volatile" is due to gcc bugs */#define barrier() __asm__ __volatile__("": : :"memory")#define INT_MAX		((int)(~0U>>1))#define INT_MIN		(-INT_MAX - 1)#define UINT_MAX	(~0U)#define LONG_MAX	((long)(~0UL>>1))#define LONG_MIN	(-LONG_MAX - 1)#define ULONG_MAX	(~0UL)#define STACK_MAGIC	0xdeadbeef#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))#define	KERN_EMERG	"<0>"	/* system is unusable			*/#define	KERN_ALERT	"<1>"	/* action must be taken immediately	*/#define	KERN_CRIT	"<2>"	/* critical conditions			*/#define	KERN_ERR	"<3>"	/* error conditions			*/#define	KERN_WARNING	"<4>"	/* warning conditions			*/#define	KERN_NOTICE	"<5>"	/* normal but significant condition	*/#define	KERN_INFO	"<6>"	/* informational			*/#define	KERN_DEBUG	"<7>"	/* debug-level messages			*/extern int console_printk[];#define console_loglevel (console_printk[0])#define default_message_loglevel (console_printk[1])#define minimum_console_loglevel (console_printk[2])#define default_console_loglevel (console_printk[3])# define NORET_TYPE    /**/# define ATTRIB_NORET  __attribute__((noreturn))# define NORET_AND     noreturn,#ifdef __i386__#define FASTCALL(x)	x __attribute__((regparm(3)))#else#define FASTCALL(x)	x#endifstruct completion;extern struct notifier_block *panic_notifier_list;NORET_TYPE void panic(const char * fmt, ...)	__attribute__ ((NORET_AND format (printf, 1, 2)));asmlinkage NORET_TYPE void do_exit(long error_code)	ATTRIB_NORET;NORET_TYPE void complete_and_exit(struct completion *, long)	ATTRIB_NORET;extern int abs(int);extern unsigned long simple_strtoul(const char *,char **,unsigned int);extern long simple_strtol(const char *,char **,unsigned int);extern unsigned long long simple_strtoull(const char *,char **,unsigned int);extern long long simple_strtoll(const char *,char **,unsigned int);extern int sprintf(char * buf, const char * fmt, ...)	__attribute__ ((format (printf, 2, 3)));extern int vsprintf(char *buf, const char *, va_list);extern int snprintf(char * buf, size_t size, const char * fmt, ...)	__attribute__ ((format (printf, 3, 4)));extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);extern int sscanf(const char *, const char *, ...)	__attribute__ ((format (scanf,2,3)));extern int vsscanf(const char *, const char *, va_list);extern int get_option(char **str, int *pint);extern char *get_options(char *str, int nints, int *ints);extern unsigned long long memparse(char *ptr, char **retptr);extern void dev_probe_lock(void);extern void dev_probe_unlock(void);extern int session_of_pgrp(int pgrp);asmlinkage int printk(const char * fmt, ...)	__attribute__ ((format (printf, 1, 2)));static inline void console_silent(void){	console_loglevel = 0;}static inline void console_verbose(void){	if (console_loglevel)		console_loglevel = 15;}extern void bust_spinlocks(int yes);extern int oops_in_progress;		/* If set, an oops, panic(), BUG() or die() is in progress */extern int tainted;extern const char *print_tainted(void);#if DEBUG#define pr_debug(fmt,arg...) \	printk(KERN_DEBUG fmt,##arg)#else#define pr_debug(fmt,arg...) \	do { } while (0)#endif#define pr_info(fmt,arg...) \	printk(KERN_INFO fmt,##arg)/* *      Display an IP address in readable format. */#define NIPQUAD(addr) \	((unsigned char *)&addr)[0], \	((unsigned char *)&addr)[1], \	((unsigned char *)&addr)[2], \	((unsigned char *)&addr)[3]#define HIPQUAD(addr) \	((unsigned char *)&addr)[3], \	((unsigned char *)&addr)[2], \	((unsigned char *)&addr)[1], \	((unsigned char *)&addr)[0]/* * min()/max() macros that also do * strict type-checking.. See the * "unnecessary" pointer comparison. */#define min(x,y) ({ \	const typeof(x) _x = (x);	\	const typeof(y) _y = (y);	\	(void) (&_x == &_y);		\	_x < _y ? _x : _y; })#define max(x,y) ({ \	const typeof(x) _x = (x);	\	const typeof(y) _y = (y);	\	(void) (&_x == &_y);		\	_x > _y ? _x : _y; })/* * ..and if you can't take the strict * types, you can specify one yourself. * * Or not use min/max at all, of course. */#define min_t(type,x,y) \	({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })#define max_t(type,x,y) \	({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })#endif /* __KERNEL__ */#define SI_LOAD_SHIFT	16struct sysinfo {	long uptime;			/* Seconds since boot */	unsigned long loads[3];		/* 1, 5, and 15 minute load averages */	unsigned long totalram;		/* Total usable main memory size */	unsigned long freeram;		/* Available memory size */	unsigned long sharedram;	/* Amount of shared memory */	unsigned long bufferram;	/* Memory used by buffers */	unsigned long totalswap;	/* Total swap space size */	unsigned long freeswap;		/* swap space still available */	unsigned short procs;		/* Number of current processes */	unsigned short pad;		/* explicit padding for m68k */	unsigned long totalhigh;	/* Total high memory size */	unsigned long freehigh;		/* Available high memory size */	unsigned int mem_unit;		/* Memory unit size in bytes */	char _f[20-2*sizeof(long)-sizeof(int)];	/* Padding: libc5 uses this.. */};#endif