X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fkernel.h;h=c4c862629d84045268584c27b9af86cf3d74b5b3;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=c1171e77c76bf6b5eb3c7790534716fd01b43ba4;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index c1171e77c..c4c862629 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -54,6 +54,16 @@ void __might_sleep(char *file, int line);
 #define might_sleep_if(cond) do {} while (0)
 #endif
 
+#define abs(x) ({				\
+		int __x = (x);			\
+		(__x < 0) ? -__x : __x;		\
+	})
+
+#define labs(x) ({				\
+		long __x = (x);			\
+		(__x < 0) ? -__x : __x;		\
+	})
+
 extern struct notifier_block *panic_notifier_list;
 NORET_TYPE void panic(const char * fmt, ...)
 	__attribute__ ((NORET_AND format (printf, 1, 2)));
@@ -61,7 +71,6 @@ 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);
@@ -84,6 +93,7 @@ extern int get_option(char **str, int *pint);
 extern char *get_options(const char *str, int nints, int *ints);
 extern unsigned long long memparse(char *ptr, char **retptr);
 
+extern int __kernel_text_address(unsigned long addr);
 extern int kernel_text_address(unsigned long addr);
 extern int session_of_pgrp(int pgrp);
 
@@ -92,6 +102,15 @@ asmlinkage int printk(const char * fmt, ...)
 
 unsigned long int_sqrt(unsigned long);
 
+static inline int __attribute_pure__ long_log2(unsigned long x)
+{
+	int r = 0;
+	for (x >>= 1; x > 0; x >>= 1)
+		r++;
+	return r;
+}
+
+
 extern int printk_ratelimit(void);
 extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);
 
@@ -109,14 +128,17 @@ static inline void console_verbose(void)
 extern void bust_spinlocks(int yes);
 extern int oops_in_progress;		/* If set, an oops, panic(), BUG() or die() is in progress */
 extern int panic_on_oops;
-extern int system_state;		/* See values below */
 extern int tainted;
 extern const char *print_tainted(void);
 
 /* Values used for system_state */
-#define SYSTEM_BOOTING 0
-#define SYSTEM_RUNNING 1
-#define SYSTEM_SHUTDOWN 2
+extern enum system_states {
+	SYSTEM_BOOTING,
+	SYSTEM_RUNNING,
+	SYSTEM_HALT,
+	SYSTEM_POWER_OFF,
+	SYSTEM_RESTART,
+} system_state;
 
 #define TAINT_PROPRIETARY_MODULE	(1<<0)
 #define TAINT_FORCED_MODULE		(1<<1)