Unverified Commit c4a9d9d8 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!1529 net/sched: sch_qfq: account for stab overhead in qfq_enqueue 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/WXOHRQHPIRWXZTKJ26Z6FSX2AX7ALOWX/ 
 
https://gitee.com/src-openeuler/kernel/issues/I7N3MX 
 
Link:https://gitee.com/openeuler/kernel/pulls/1529

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
parents 2c1bd374 d1e7bc6d

net/sched/sch_qfq.c

+7 −1
Original line number Diff line number Diff line
@@ -116,6 +116,7 @@ 


#define QFQ_MTU_SHIFT		16	/* to support TSO/GSO */

#define QFQ_MIN_LMAX		512	/* see qfq_slot_insert */

#define QFQ_MAX_LMAX		(1UL << QFQ_MTU_SHIFT)



#define QFQ_MAX_AGG_CLASSES	8 /* max num classes per aggregate allowed */
@@ -387,8 +388,13 @@ static int qfq_change_agg(struct Qdisc *sch, struct qfq_class *cl, u32 weight, 
			   u32 lmax)

{

	struct qfq_sched *q = qdisc_priv(sch);

	struct qfq_aggregate *new_agg = qfq_find_agg(q, lmax, weight);

	struct qfq_aggregate *new_agg;



	/* 'lmax' can range from [QFQ_MIN_LMAX, pktlen + stab overhead] */

	if (lmax > QFQ_MAX_LMAX)

		return -EINVAL;



	new_agg = qfq_find_agg(q, lmax, weight);

	if (new_agg == NULL) { /* create new aggregate */

		new_agg = kzalloc(sizeof(*new_agg), GFP_ATOMIC);

		if (new_agg == NULL)