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arch/alpha/kernel/traps.c: use time_* macros

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The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.

So implement usage of the time_after() macro, defined in linux/jiffies.h,
which deals with wrapping correctly

[[email protected]: fix warning]
Signed-off-by: S.Caglar Onur <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
S.Caglar Onur 2008-04-28 02:13:47 -07:00 • committed by Linus Torvalds
commit 037f436f52
1 changed files with 3 additions and 2 deletions
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5
arch/alpha/kernel/traps.c
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@ -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>
@ -770,7 +771,7 @@ do_entUnaUser(void __user * va, unsigned long opcode,
unsigned long reg, struct pt_regs *regs)
{
static int cnt = 0;
static long last_time = 0;
static unsigned long last_time;
unsigned long tmp1, tmp2, tmp3, tmp4;
unsigned long fake_reg, *reg_addr = &fake_reg;
@ -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) {