tcp: remove max_qlen_log
This control variable was set at first listen(fd, backlog)
call, but not updated if application tried to increase or decrease
backlog. It made sense at the time listener had a non resizeable
hash table.
Also rounding to powers of two was not very friendly.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 7754832..5f6e31a 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -579,7 +579,7 @@
* ones are about to clog our table.
*/
qlen = reqsk_queue_len(queue);
- if (qlen >> (queue->max_qlen_log - 1)) {
+ if ((qlen << 1) > sk_listener->sk_max_ack_backlog) {
int young = reqsk_queue_len_young(queue) << 1;
while (thresh > 2) {
@@ -732,7 +732,7 @@
struct inet_connection_sock *icsk = inet_csk(sk);
struct inet_sock *inet = inet_sk(sk);
- reqsk_queue_alloc(&icsk->icsk_accept_queue, nr_table_entries);
+ reqsk_queue_alloc(&icsk->icsk_accept_queue);
sk->sk_max_ack_backlog = 0;
sk->sk_ack_backlog = 0;