X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Facct.h;h=302eb727ecb85dc7dec0db126c9a5d5240d8194b;hb=refs%2Fheads%2Fvserver;hp=b46ce1ac1c6a3e7a96dbde7c8c421e5eceaf68c6;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/include/linux/acct.h b/include/linux/acct.h
index b46ce1ac1..302eb727e 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -16,6 +16,7 @@
 #define _LINUX_ACCT_H
 
 #include <linux/types.h>
+
 #include <asm/param.h>
 #include <asm/byteorder.h>
 
@@ -114,15 +115,22 @@ struct acct_v3
 
 #ifdef __KERNEL__
 
-#include <linux/config.h>
 
 #ifdef CONFIG_BSD_PROCESS_ACCT
+struct vfsmount;
 struct super_block;
+struct pacct_struct;
+extern void acct_auto_close_mnt(struct vfsmount *m);
 extern void acct_auto_close(struct super_block *sb);
-extern void acct_process(long exitcode);
+extern void acct_init_pacct(struct pacct_struct *pacct);
+extern void acct_collect(long exitcode, int group_dead);
+extern void acct_process(void);
 #else
+#define acct_auto_close_mnt(x)	do { } while (0)
 #define acct_auto_close(x)	do { } while (0)
-#define acct_process(x)		do { } while (0)
+#define acct_init_pacct(x)	do { } while (0)
+#define acct_collect(x,y)	do { } while (0)
+#define acct_process()		do { } while (0)
 #endif
 
 /*
@@ -156,15 +164,16 @@ typedef struct acct acct_t;
 #endif	/* __KERNEL */
 
 #ifdef __KERNEL__
+#include <linux/jiffies.h>
 /*
  * Yet another set of HZ to *HZ helper functions.
- * See <linux/times.h> for the original.
+ * See <linux/jiffies.h> for the original.
  */
 
 static inline u32 jiffies_to_AHZ(unsigned long x)
 {
 #if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
-	return x / (HZ / USER_HZ);
+	return x / (HZ / AHZ);
 #else
         u64 tmp = (u64)x * TICK_NSEC;
         do_div(tmp, (NSEC_PER_SEC / AHZ));
@@ -172,17 +181,24 @@ static inline u32 jiffies_to_AHZ(unsigned long x)
 #endif
 }
 
-static inline u64 jiffies_64_to_AHZ(u64 x)
+static inline u64 nsec_to_AHZ(u64 x)
 {
-#if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
-#if HZ != AHZ
-	do_div(x, HZ / AHZ);
-#endif
-#else
-	x *= TICK_NSEC;
+#if (NSEC_PER_SEC % AHZ) == 0
 	do_div(x, (NSEC_PER_SEC / AHZ));
+#elif (AHZ % 512) == 0
+	x *= AHZ/512;
+	do_div(x, (NSEC_PER_SEC / 512));
+#else
+	/*
+         * max relative error 5.7e-8 (1.8s per year) for AHZ <= 1024,
+         * overflow after 64.99 years.
+         * exact for AHZ=60, 72, 90, 120, 144, 180, 300, 600, 900, ...
+         */
+	x *= 9;
+	do_div(x, (unsigned long)((9ull * NSEC_PER_SEC + (AHZ/2))
+	                          / AHZ));
 #endif
-       return x;
+	return x;
 }
 
 #endif  /* __KERNEL */