path: root/net/dccp/ipv4.c
diff options
authorEric Dumazet <edumazet@google.com>2015-03-19 19:04:19 -0700
committerDavid S. Miller <davem@davemloft.net>2015-03-20 12:40:25 -0400
commit52452c542559ac980b48dbf22a30ee7fa0af507c (patch)
treea212dbe95694ea11e86b9d9aca8a2eba0b06a2d1 /net/dccp/ipv4.c
parenta998f712f77ea4892d3fcf24e0a67603e63da128 (diff)
inet: drop prev pointer handling in request sock
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>
Diffstat (limited to 'net/dccp/ipv4.c')
1 files changed, 6 insertions, 8 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index e7ad291cd96b..5bffbbaf1fac 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -288,11 +288,11 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
switch (sk->sk_state) {
- struct request_sock *req , **prev;
+ struct request_sock *req;
if (sock_owned_by_user(sk))
goto out;
- req = inet_csk_search_req(sk, &prev, dh->dccph_dport,
+ req = inet_csk_search_req(sk, dh->dccph_dport,
iph->daddr, iph->saddr);
if (!req)
goto out;
@@ -314,7 +314,7 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
* created socket, and POSIX does not want network
* errors returned from accept().
- inet_csk_reqsk_queue_drop(sk, req, prev);
+ inet_csk_reqsk_queue_drop(sk, req);
goto out;
@@ -448,13 +448,11 @@ static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
const struct dccp_hdr *dh = dccp_hdr(skb);
const struct iphdr *iph = ip_hdr(skb);
struct sock *nsk;
- struct request_sock **prev;
/* Find possible connection requests. */
- struct request_sock *req = inet_csk_search_req(sk, &prev,
- dh->dccph_sport,
+ struct request_sock *req = inet_csk_search_req(sk, dh->dccph_sport,
iph->saddr, iph->daddr);
- if (req != NULL)
- return dccp_check_req(sk, skb, req, prev);
+ if (req)
+ return dccp_check_req(sk, skb, req);
nsk = inet_lookup_established(sock_net(sk), &dccp_hashinfo,
iph->saddr, dh->dccph_sport,

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