Commit 886bc503 authored by Florian Westphal's avatar Florian Westphal Committed by Pablo Neira Ayuso
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netfilter: nf_queue: place volatile data in own cacheline

As the comment indicates, the data at the end of nfqnl_instance struct is
written on every queue/dequeue, so it should reside in its own cacheline.

Before this change, 'lock' was in first cacheline so we dirtied both.

Signed-off-by: default avatarFlorian Westphal <>
Signed-off-by: default avatarPablo Neira Ayuso <>
parent e41e9d62
......@@ -69,7 +69,7 @@ struct nfqnl_instance {
* Following fields are dirtied for each queued packet,
* keep them in same cache line if possible.
spinlock_t lock;
spinlock_t lock ____cacheline_aligned_in_smp;
unsigned int queue_total;
unsigned int id_sequence; /* 'sequence' of pkt ids */
struct list_head queue_list; /* packets in queue */
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