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net: Commonize busy polling code to focus on napi_id instead of socket

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Move the core functionality in sk_busy_loop() to napi_busy_loop() and
make it independent of sk.

This enables re-using this function in epoll busy loop implementation.

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sridhar Samudrala
2017-03-24 10:08:24 -07:00
committed by David S. Miller
parent 37056719bb
commit 7db6b048da
3 changed files with 34 additions and 18 deletions
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11
net/core/sock.c
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@@ -3237,3 +3237,14 @@ static int __init proto_init(void)
subsys_initcall(proto_init);
#endif /* PROC_FS */
#ifdef CONFIG_NET_RX_BUSY_POLL
bool sk_busy_loop_end(void *p, unsigned long start_time)
{
struct sock *sk = p;
return !skb_queue_empty(&sk->sk_receive_queue) ||
sk_busy_loop_timeout(sk, start_time);
}
EXPORT_SYMBOL(sk_busy_loop_end);
#endif /* CONFIG_NET_RX_BUSY_POLL */