net_sched: always clone skbs
Pawel reported a panic related to handling shared skbs in ixgbe
incorrectly. So we need to revert my previous patch to work around
this bug. Instead of reverting the patch completely, I just revert
the essential lines, so we can add the previous optimization
back more easily in future.
commit 3511c9132f
Author: Changli Gao <xiaosuo@gmail.com>
Date: Sat Oct 16 13:04:08 2010 +0000
net_sched: remove the unused parameter of qdisc_create_dflt()
Reported-by: Pawel Staszewski <pstaszewski@itcare.pl>
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -610,11 +610,7 @@ static inline struct sk_buff *skb_act_clone(struct sk_buff *skb, gfp_t gfp_mask,
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{
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struct sk_buff *n;
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if ((action == TC_ACT_STOLEN || action == TC_ACT_QUEUED) &&
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!skb_shared(skb))
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n = skb_get(skb);
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else
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n = skb_clone(skb, gfp_mask);
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n = skb_clone(skb, gfp_mask);
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if (n) {
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n->tc_verd = SET_TC_VERD(n->tc_verd, 0);
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