| Date | Wed, 01 Jun 2011 17:00:02 +0900 | From | Greg KH <> | Subject | [066/146] sch_sfq: fix peek() implementation |
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2.6.38-stable review patch. If anyone has any objections, please let us know.
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From: Eric Dumazet <eric.dumazet@gmail.com>
[ Upstream commit 07bd8df5df4369487812bf85a237322ff3569b77 ]
Since commit eeaeb068f139 (sch_sfq: allow big packets and be fair), sfq_peek() can return a different skb that would be normally dequeued by sfq_dequeue() [ if current slot->allot is negative ]
Use generic qdisc_peek_dequeued() instead of custom implementation, to get consistent result.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Jarek Poplawski <jarkao2@gmail.com> CC: Patrick McHardy <kaber@trash.net> CC: Jesper Dangaard Brouer <hawk@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- net/sched/sch_sfq.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-)
--- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -414,18 +414,6 @@ sfq_enqueue(struct sk_buff *skb, struct } static struct sk_buff * -sfq_peek(struct Qdisc *sch) -{ - struct sfq_sched_data *q = qdisc_priv(sch); - - /* No active slots */ - if (q->tail == NULL) - return NULL; - - return q->slots[q->tail->next].skblist_next; -} - -static struct sk_buff * sfq_dequeue(struct Qdisc *sch) { struct sfq_sched_data *q = qdisc_priv(sch); @@ -683,7 +671,7 @@ static struct Qdisc_ops sfq_qdisc_ops __ .priv_size = sizeof(struct sfq_sched_data), .enqueue = sfq_enqueue, .dequeue = sfq_dequeue, - .peek = sfq_peek, + .peek = qdisc_peek_dequeued, .drop = sfq_drop, .init = sfq_init, .reset = sfq_reset,
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