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tcp: remove max_qlen_log

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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>
This commit is contained in:
Eric Dumazet
2015-10-02 11:43:37 -07:00
committed by David S. Miller
parent 10cbc8f179
commit ef547f2ac1
4 changed files with 6 additions and 18 deletions
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10
include/net/request_sock.h
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@@ -157,7 +157,7 @@ struct fastopen_queue {
struct request_sock_queue {
spinlock_t rskq_lock;
u8 rskq_defer_accept;
u8 max_qlen_log;
u32 synflood_warned;
atomic_t qlen;
atomic_t young;
@@ -169,8 +169,7 @@ struct request_sock_queue {
*/
};
void reqsk_queue_alloc(struct request_sock_queue *queue,
unsigned int nr_table_entries);
void reqsk_queue_alloc(struct request_sock_queue *queue);
void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
bool reset);
@@ -240,9 +239,4 @@ static inline int reqsk_queue_len_young(const struct request_sock_queue *queue)
return atomic_read(&queue->young);
}
static inline int reqsk_queue_is_full(const struct request_sock_queue *queue)
{
return reqsk_queue_len(queue) >> queue->max_qlen_log;
}
#endif /* _REQUEST_SOCK_H */