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path: root/net/ipv4/inet_connection_sock.c
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Diffstat (limited to 'net/ipv4/inet_connection_sock.c')
-rw-r--r--net/ipv4/inet_connection_sock.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index f0f91858aecf..4f57a017928c 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -480,18 +480,17 @@ static inline u32 inet_synq_hash(const __be32 raddr, const __be16 rport,
#endif
struct request_sock *inet_csk_search_req(const struct sock *sk,
- struct request_sock ***prevp,
const __be16 rport, const __be32 raddr,
const __be32 laddr)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
struct listen_sock *lopt = icsk->icsk_accept_queue.listen_opt;
- struct request_sock *req, **prev;
+ struct request_sock *req;
- for (prev = &lopt->syn_table[inet_synq_hash(raddr, rport, lopt->hash_rnd,
- lopt->nr_table_entries)];
- (req = *prev) != NULL;
- prev = &req->dl_next) {
+ for (req = lopt->syn_table[inet_synq_hash(raddr, rport, lopt->hash_rnd,
+ lopt->nr_table_entries)];
+ req != NULL;
+ req = req->dl_next) {
const struct inet_request_sock *ireq = inet_rsk(req);
if (ireq->ir_rmt_port == rport &&
@@ -499,7 +498,6 @@ struct request_sock *inet_csk_search_req(const struct sock *sk,
ireq->ir_loc_addr == laddr &&
AF_INET_FAMILY(req->rsk_ops->family)) {
WARN_ON(req->sk);
- *prevp = prev;
break;
}
}
@@ -610,7 +608,10 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
i = lopt->clock_hand;
do {
- reqp=&lopt->syn_table[i];
+ reqp = &lopt->syn_table[i];
+ if (!*reqp)
+ goto next_bucket;
+ write_lock(&queue->syn_wait_lock);
while ((req = *reqp) != NULL) {
if (time_after_eq(now, req->expires)) {
int expire = 0, resend = 0;
@@ -635,14 +636,15 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
}
/* Drop this request */
- inet_csk_reqsk_queue_unlink(parent, req, reqp);
+ *reqp = req->dl_next;
reqsk_queue_removed(queue, req);
reqsk_put(req);
continue;
}
reqp = &req->dl_next;
}
-
+ write_unlock(&queue->syn_wait_lock);
+next_bucket:
i = (i + 1) & (lopt->nr_table_entries - 1);
} while (--budget > 0);

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