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-rw-r--r--include/net/codel.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/net/codel.h b/include/net/codel.h
index 550debfc2403..389cf621161d 100644
--- a/include/net/codel.h
+++ b/include/net/codel.h
@@ -305,6 +305,8 @@ static struct sk_buff *codel_dequeue(struct Qdisc *sch,
305 } 305 }
306 } 306 }
307 } else if (drop) { 307 } else if (drop) {
308 u32 delta;
309
308 if (params->ecn && INET_ECN_set_ce(skb)) { 310 if (params->ecn && INET_ECN_set_ce(skb)) {
309 stats->ecn_mark++; 311 stats->ecn_mark++;
310 } else { 312 } else {
@@ -320,9 +322,11 @@ static struct sk_buff *codel_dequeue(struct Qdisc *sch,
320 * assume that the drop rate that controlled the queue on the 322 * assume that the drop rate that controlled the queue on the
321 * last cycle is a good starting point to control it now. 323 * last cycle is a good starting point to control it now.
322 */ 324 */
323 if (codel_time_before(now - vars->drop_next, 325 delta = vars->count - vars->lastcount;
326 if (delta > 1 &&
327 codel_time_before(now - vars->drop_next,
324 16 * params->interval)) { 328 16 * params->interval)) {
325 vars->count = (vars->count - vars->lastcount) | 1; 329 vars->count = delta;
326 /* we dont care if rec_inv_sqrt approximation 330 /* we dont care if rec_inv_sqrt approximation
327 * is not very precise : 331 * is not very precise :
328 * Next Newton steps will correct it quadratically. 332 * Next Newton steps will correct it quadratically.