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pfifo_fast: drop unneeded additional lock on dequeue

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After the previous patch, for NOLOCK qdiscs, q->seqlock is
always held when the dequeue() is invoked, we can drop
any additional locking to protect such operation.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2018-05-15 16:24:37 +02:00 • committed by David S. Miller
parent 96009c7d50
commit 021a17ed79
2 changed files with 7 additions and 2 deletions
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5
include/linux/skb_array.h
View file

@ -97,6 +97,11 @@ static inline bool skb_array_empty_any(struct skb_array *a)
return ptr_ring_empty_any(&a->ring);
}
static inline struct sk_buff *__skb_array_consume(struct skb_array *a)
{
return __ptr_ring_consume(&a->ring);
}
static inline struct sk_buff *skb_array_consume(struct skb_array *a)
{
return ptr_ring_consume(&a->ring);