[PATCH 2/4] jiffies: Add 64bit jiffies compares (needed when long < 64bit).

Signed-off-by: Dmitriy Zavin <[email protected]>
---
 include/linux/jiffies.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 329ebcf..dc74075 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -115,6 +115,18 @@ #define time_after_eq(a,b)	\
 	 ((long)(a) - (long)(b) >= 0))
 #define time_before_eq(a,b)	time_after_eq(b,a)
 
+#define time_after64(a,b)		\
+	(typecheck(__u64, a) && \
+	 typecheck(__u64, b) && \
+	 ((__s64)(b) - (__s64)(a) < 0))
+#define time_before64(a,b)	time_after64(b,a)
+
+#define time_after_eq64(a,b)	\
+	(typecheck(__u64, a) && \
+	 typecheck(__u64, b) && \
+	 ((__s64)(a) - (__s64)(b) >= 0))
+#define time_before_eq64(a,b)	time_after_eq64(b,a)
+
 /*
  * Have the 32 bit jiffies value wrap 5 minutes after boot
  * so jiffies wrap bugs show up earlier.
-- 
1.4.2

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---

• Follow-Ups:
  • Re: [PATCH 2/4] jiffies: Add 64bit jiffies compares (needed when long < 64bit).
    • From: Andi Kleen <[email protected]>
  • [PATCH 3/4] therm_throt: Make the jiffies compares use the 64bit safe macros.
    • From: Dmitriy Zavin <[email protected]>

• References:
  • therm_throt: Refactor and improve thermal throttle processing
    • From: Dmitriy Zavin <[email protected]>
  • [PATCH 1/4] x86_64/i386 thermal mce: Refactor thermal throttle reporting.
    • From: Dmitriy Zavin <[email protected]>

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