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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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