arch/parisc/kernel/unaligned.c: use time_* macros

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

So use the time_after() macro, defined in linux/jiffies.h, which deals with
wrapping correctl

[[email protected]: coding-style fixes]
Signed-off-by: S.Caglar Onur <[email protected]>
Cc: Kyle McMartin <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Grant Grundler <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Kyle McMartin <[email protected]>

arch/parisc/kernel/unaligned.c

@@ -460,7 +460,8 @@ void handle_unaligned(struct pt_regs *regs)
 			goto force_sigbus;
 		}
 
-		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
+		if (unaligned_count > 5 &&
+				time_after(jiffies, last_time + 5 * HZ)) {
 			unaligned_count = 0;
 			last_time = jiffies;
 		}