1 files changed, 6 insertions, 9 deletions

diff --git a/include/net/red.h b/include/net/red.h
index 3319f16b3beb..b72a3b833936 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -116,7 +116,7 @@ struct red_parms {
         u32             qR;             /* Cached random number */
 
         unsigned long   qavg;           /* Average queue length: A scaled */
-        psched_time_t   qidlestart;     /* Start of current idle period */
+        ktime_t         qidlestart;     /* Start of current idle period */
 };
 
 static inline u32 red_rmask(u8 Plog)
@@ -148,17 +148,17 @@ static inline void red_set_parms(struct red_parms *p,
 
 static inline int red_is_idling(struct red_parms *p)
 {
-        return p->qidlestart != PSCHED_PASTPERFECT;
+        return p->qidlestart.tv64 != 0;
 }
 
 static inline void red_start_of_idle_period(struct red_parms *p)
 {
-        p->qidlestart = psched_get_time();
+        p->qidlestart = ktime_get();
 }
 
 static inline void red_end_of_idle_period(struct red_parms *p)
 {
-        p->qidlestart = PSCHED_PASTPERFECT;
+        p->qidlestart.tv64 = 0;
 }
 
 static inline void red_restart(struct red_parms *p)
@@ -170,13 +170,10 @@ static inline void red_restart(struct red_parms *p)
 
 static inline unsigned long red_calc_qavg_from_idle_time(struct red_parms *p)
 {
-        psched_time_t now;
-        long us_idle;
+        s64 delta = ktime_us_delta(ktime_get(), p->qidlestart);
+        long us_idle = min_t(s64, delta, p->Scell_max);
         int  shift;
 
-        now = psched_get_time();
-        us_idle = psched_tdiff_bounded(now, p->qidlestart, p->Scell_max);
-
         /*
          * The problem: ideally, average length queue recalcultion should
          * be done over constant clock intervals. This is too expensive, so