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SubjectNo locking is needed ... why?
Hi.

Could somebody explain me this comment?:
/*
* Incoming packets are placed on per-cpu queues so
that
* no locking is needed.
*/

struct softnet_data
{
int throttle;
int cng_level;
int avg_blog;
struct sk_buff_head input_pkt_queue;
struct net_device *output_queue;
struct sk_buff *completion_queue;
} __attribute__((__aligned__(SMP_CACHE_BYTES)));

I didn't understand why packets are placed so and why
locking isn't needed?


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