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SUNRPC: Clean up xs_udp_data_receive() 

Simplify the retry logic.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2018-09-14 17:45:23 -04:00
parent 550aebfe1c
commit 4f54614975
1 changed files with 5 additions and 12 deletions
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17
net/sunrpc/xprtsock.c
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@ -1344,25 +1344,18 @@ static void xs_udp_data_receive(struct sock_xprt *transport)
struct sock *sk;
int err;
restart:
mutex_lock(&transport->recv_mutex);
sk = transport->inet;
if (sk == NULL)
goto out;
clear_bit(XPRT_SOCK_DATA_READY, &transport->sock_state);
for (;;) {
skb = skb_recv_udp(sk, 0, 1, &err);
if (skb != NULL) {
xs_udp_data_read_skb(&transport->xprt, sk, skb);
consume_skb(skb);
continue;
}
if (!test_and_clear_bit(XPRT_SOCK_DATA_READY, &transport->sock_state))
if (skb == NULL)
break;
if (need_resched()) {
mutex_unlock(&transport->recv_mutex);
cond_resched();
goto restart;
}
xs_udp_data_read_skb(&transport->xprt, sk, skb);
consume_skb(skb);
cond_resched();
}
out:
mutex_unlock(&transport->recv_mutex);