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Change jiffies_to_clock_t function input parameter's, type to unsigned long

PATCH New hank 1 participant 1 message Jun 29, 2011

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PATCH 1/1 Change jiffies_to_clock_t function input parameter's, type to unsigned long

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From dbc32d224ca024a98b2521a8a7bf20989bec34ee Mon Sep 17 00:00:00 2001

From: hank <[email protected]>
Date: Wed, 29 Jun 2011 09:17:45 +0800
Subject: [PATCH 1/1] Change jiffies_to_clock_t function input parameter's
type to unsigned long

The parmaeter's origin type is long. On an i386 architecture, it can easily larger than 0x80000000, then this function convert it to a u64 type, get a
result: 0xffffffff80000000, it is unexpected, so change the type to unsigned long, we can get the correct result: 0x0000000080000000

---
 kernel/time.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
kernel/time.c +1 -1
index 8e8dc6d..d776062 100644
@@ -575,7 +575,7 @@ EXPORT_SYMBOL(jiffies_to_timeval);
 /*
  * Convert jiffies/jiffies_64 to clock_t and back.
  */
-clock_t jiffies_to_clock_t(long x)
+clock_t jiffies_to_clock_t(unsigned long x)
 {
 #if (TICK_NSEC % (NSEC_PER_SEC / USER_HZ)) == 0
 # if HZ < USER_HZ
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