X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Flinux%2Fjiffies.h;h=1a9cf78bfce545fe2495fa5fe248297fc038d6ce;hb=d756f4a4446227ca9626087939a6769ca55ab036;hp=e0b5b684d83f2969816f051acb2e1158da2fe06d;hpb=b5eb9513f7c1bee862ada22bf1489f53752686bd;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index e0b5b684d83..1a9cf78bfce 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -1,7 +1,7 @@
 #ifndef _LINUX_JIFFIES_H
 #define _LINUX_JIFFIES_H
 
-#include <linux/calc64.h>
+#include <linux/math64.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/time.h>
@@ -36,7 +36,7 @@
 #elif HZ >= 6144 && HZ < 12288
 # define SHIFT_HZ	13
 #else
-# error You lose.
+# error Invalid value of HZ.
 #endif
 
 /* LATCH is used in the interval timer and ftape setup. */
@@ -115,10 +115,20 @@ static inline u64 get_jiffies_64(void)
 	 ((long)(a) - (long)(b) >= 0))
 #define time_before_eq(a,b)	time_after_eq(b,a)
 
+/*
+ * Calculate whether a is in the range of [b, c].
+ */
 #define time_in_range(a,b,c) \
 	(time_after_eq(a,b) && \
 	 time_before_eq(a,c))
 
+/*
+ * Calculate whether a is in the range of [b, c).
+ */
+#define time_in_range_open(a,b,c) \
+	(time_after_eq(a,b) && \
+	 time_before(a,c))
+
 /* Same as above, but does so with platform independent 64bit types.
  * These must be used when utilizing jiffies_64 (i.e. return value of
  * get_jiffies_64() */
@@ -134,6 +144,22 @@ static inline u64 get_jiffies_64(void)
 	 ((__s64)(a) - (__s64)(b) >= 0))
 #define time_before_eq64(a,b)	time_after_eq64(b,a)
 
+/*
+ * These four macros compare jiffies and 'a' for convenience.
+ */
+
+/* time_is_before_jiffies(a) return true if a is before jiffies */
+#define time_is_before_jiffies(a) time_after(jiffies, a)
+
+/* time_is_after_jiffies(a) return true if a is after jiffies */
+#define time_is_after_jiffies(a) time_before(jiffies, a)
+
+/* time_is_before_eq_jiffies(a) return true if a is before or equal to jiffies*/
+#define time_is_before_eq_jiffies(a) time_after_eq(jiffies, a)
+
+/* time_is_after_eq_jiffies(a) return true if a is after or equal to jiffies*/
+#define time_is_after_eq_jiffies(a) time_before_eq(jiffies, a)
+
 /*
  * Have the 32 bit jiffies value wrap 5 minutes after boot
  * so jiffies wrap bugs show up earlier.