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Subject[PATCH] arch/alpha/kernel/traps.c: Use time_* macros
Date
The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.

So following patch implements usage of the time_after() macro, defined at linux/jiffies.h, which deals with wrapping correctly

Cc: Richard Henderson <rth@twiddle.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
---
arch/alpha/kernel/traps.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 2dc7f9f..aa27106 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -8,6 +8,7 @@
* This file initializes the trap entry points
*/

+#include <linux/jiffies.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/tty.h>
@@ -781,7 +782,7 @@ do_entUnaUser(void __user * va, unsigned long opcode,
with the unaliged access. */

if (!test_thread_flag (TIF_UAC_NOPRINT)) {
- if (cnt >= 5 && jiffies - last_time > 5*HZ) {
+ if (cnt >= 5 && time_after(jiffies, last_time + 5 * HZ)) {
cnt = 0;
}
if (++cnt < 5) {
--
1.5.4.3
--
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