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inet: drop prev pointer handling in request sock

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When request sock are put in ehash table, the whole notion
of having a previous request to update dl_next is pointless.

Also, following patch will get rid of big purge timer,
so we want to delete a request sock without holding listener lock.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2015-03-19 19:04:19 -07:00
committed by David S. Miller
parent a998f712f7
commit 52452c5425
14 changed files with 67 additions and 74 deletions
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11
include/net/inet_connection_sock.h
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@@ -257,7 +257,6 @@ inet_csk_rto_backoff(const struct inet_connection_sock *icsk,
struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
struct request_sock *inet_csk_search_req(const struct sock *sk,
struct request_sock ***prevp,
const __be16 rport,
const __be32 raddr,
const __be32 laddr);
@@ -310,17 +309,15 @@ static inline int inet_csk_reqsk_queue_is_full(const struct sock *sk)
}
static inline void inet_csk_reqsk_queue_unlink(struct sock *sk,
struct request_sock *req,
struct request_sock **prev)
struct request_sock *req)
{
reqsk_queue_unlink(&inet_csk(sk)->icsk_accept_queue, req, prev);
reqsk_queue_unlink(&inet_csk(sk)->icsk_accept_queue, req);
}
static inline void inet_csk_reqsk_queue_drop(struct sock *sk,
struct request_sock *req,
struct request_sock **prev)
struct request_sock *req)
{
inet_csk_reqsk_queue_unlink(sk, req, prev);
inet_csk_reqsk_queue_unlink(sk, req);
inet_csk_reqsk_queue_removed(sk, req);
reqsk_free(req);
}