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authorEric Dumazet <eric.dumazet@gmail.com>2009-10-15 06:30:45 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-18 18:52:53 -0700
commitc720c7e8383aff1cb219bddf474ed89d850336e3 (patch)
tree4f12337e6690fccced376db9f501eaf98614a65e /net/dccp
parent988ade6b8e27e79311812f83a87b5cea11fabcd7 (diff)
downloadlinux-c720c7e8383aff1cb219bddf474ed89d850336e3.tar.bz2
inet: rename some inet_sock fields
In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ipv4.c40
-rw-r--r--net/dccp/ipv6.c27
-rw-r--r--net/dccp/output.c4
-rw-r--r--net/dccp/probe.c13
-rw-r--r--net/dccp/proto.c4
5 files changed, 47 insertions, 41 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 7302e1498d46..00028d4b09d9 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -62,10 +62,10 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
nexthop = inet->opt->faddr;
}
- tmp = ip_route_connect(&rt, nexthop, inet->saddr,
+ tmp = ip_route_connect(&rt, nexthop, inet->inet_saddr,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
IPPROTO_DCCP,
- inet->sport, usin->sin_port, sk, 1);
+ inet->inet_sport, usin->sin_port, sk, 1);
if (tmp < 0)
return tmp;
@@ -77,12 +77,12 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
if (inet->opt == NULL || !inet->opt->srr)
daddr = rt->rt_dst;
- if (inet->saddr == 0)
- inet->saddr = rt->rt_src;
- inet->rcv_saddr = inet->saddr;
+ if (inet->inet_saddr == 0)
+ inet->inet_saddr = rt->rt_src;
+ inet->inet_rcv_saddr = inet->inet_saddr;
- inet->dport = usin->sin_port;
- inet->daddr = daddr;
+ inet->inet_dport = usin->sin_port;
+ inet->inet_daddr = daddr;
inet_csk(sk)->icsk_ext_hdr_len = 0;
if (inet->opt != NULL)
@@ -98,17 +98,19 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
if (err != 0)
goto failure;
- err = ip_route_newports(&rt, IPPROTO_DCCP, inet->sport, inet->dport,
- sk);
+ err = ip_route_newports(&rt, IPPROTO_DCCP, inet->inet_sport,
+ inet->inet_dport, sk);
if (err != 0)
goto failure;
/* OK, now commit destination to socket. */
sk_setup_caps(sk, &rt->u.dst);
- dp->dccps_iss = secure_dccp_sequence_number(inet->saddr, inet->daddr,
- inet->sport, inet->dport);
- inet->id = dp->dccps_iss ^ jiffies;
+ dp->dccps_iss = secure_dccp_sequence_number(inet->inet_saddr,
+ inet->inet_daddr,
+ inet->inet_sport,
+ inet->inet_dport);
+ inet->inet_id = dp->dccps_iss ^ jiffies;
err = dccp_connect(sk);
rt = NULL;
@@ -123,7 +125,7 @@ failure:
dccp_set_state(sk, DCCP_CLOSED);
ip_rt_put(rt);
sk->sk_route_caps = 0;
- inet->dport = 0;
+ inet->inet_dport = 0;
goto out;
}
@@ -352,7 +354,9 @@ void dccp_v4_send_check(struct sock *sk, int unused, struct sk_buff *skb)
struct dccp_hdr *dh = dccp_hdr(skb);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v4_csum_finish(skb, inet->saddr, inet->daddr);
+ dh->dccph_checksum = dccp_v4_csum_finish(skb,
+ inet->inet_saddr,
+ inet->inet_daddr);
}
EXPORT_SYMBOL_GPL(dccp_v4_send_check);
@@ -393,14 +397,14 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
newinet = inet_sk(newsk);
ireq = inet_rsk(req);
- newinet->daddr = ireq->rmt_addr;
- newinet->rcv_saddr = ireq->loc_addr;
- newinet->saddr = ireq->loc_addr;
+ newinet->inet_daddr = ireq->rmt_addr;
+ newinet->inet_rcv_saddr = ireq->loc_addr;
+ newinet->inet_saddr = ireq->loc_addr;
newinet->opt = ireq->opt;
ireq->opt = NULL;
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
- newinet->id = jiffies;
+ newinet->inet_id = jiffies;
dccp_sync_mss(newsk, dst_mtu(dst));
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index a2afb553d8b3..6d89f9f7d5d8 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -158,8 +158,8 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
ipv6_addr_copy(&fl.fl6_src, &np->saddr);
fl.oif = sk->sk_bound_dev_if;
- fl.fl_ip_dport = inet->dport;
- fl.fl_ip_sport = inet->sport;
+ fl.fl_ip_dport = inet->inet_dport;
+ fl.fl_ip_sport = inet->inet_sport;
security_sk_classify_flow(sk, &fl);
err = ip6_dst_lookup(sk, &dst, &fl);
@@ -510,9 +510,9 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
memcpy(newnp, np, sizeof(struct ipv6_pinfo));
- ipv6_addr_set_v4mapped(newinet->daddr, &newnp->daddr);
+ ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr);
- ipv6_addr_set_v4mapped(newinet->saddr, &newnp->saddr);
+ ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
ipv6_addr_copy(&newnp->rcv_saddr, &newnp->saddr);
@@ -640,7 +640,8 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
dccp_sync_mss(newsk, dst_mtu(dst));
- newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6;
+ newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
+ newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
__inet6_hash(newsk);
__inet_inherit_port(sk, newsk);
@@ -968,10 +969,9 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
icsk->icsk_af_ops = &dccp_ipv6_af_ops;
sk->sk_backlog_rcv = dccp_v6_do_rcv;
goto failure;
- } else {
- ipv6_addr_set_v4mapped(inet->saddr, &np->saddr);
- ipv6_addr_set_v4mapped(inet->rcv_saddr, &np->rcv_saddr);
}
+ ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
+ ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &np->rcv_saddr);
return err;
}
@@ -984,7 +984,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
ipv6_addr_copy(&fl.fl6_src, saddr ? saddr : &np->saddr);
fl.oif = sk->sk_bound_dev_if;
fl.fl_ip_dport = usin->sin6_port;
- fl.fl_ip_sport = inet->sport;
+ fl.fl_ip_sport = inet->inet_sport;
security_sk_classify_flow(sk, &fl);
if (np->opt != NULL && np->opt->srcrt != NULL) {
@@ -1017,7 +1017,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
/* set the source address */
ipv6_addr_copy(&np->saddr, saddr);
- inet->rcv_saddr = LOOPBACK4_IPV6;
+ inet->inet_rcv_saddr = LOOPBACK4_IPV6;
__ip6_dst_store(sk, dst, NULL, NULL);
@@ -1026,7 +1026,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
icsk->icsk_ext_hdr_len = (np->opt->opt_flen +
np->opt->opt_nflen);
- inet->dport = usin->sin6_port;
+ inet->inet_dport = usin->sin6_port;
dccp_set_state(sk, DCCP_REQUESTING);
err = inet6_hash_connect(&dccp_death_row, sk);
@@ -1035,7 +1035,8 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32,
np->daddr.s6_addr32,
- inet->sport, inet->dport);
+ inet->inet_sport,
+ inet->inet_dport);
err = dccp_connect(sk);
if (err)
goto late_failure;
@@ -1046,7 +1047,7 @@ late_failure:
dccp_set_state(sk, DCCP_CLOSED);
__sk_dst_reset(sk);
failure:
- inet->dport = 0;
+ inet->inet_dport = 0;
sk->sk_route_caps = 0;
return err;
}
diff --git a/net/dccp/output.c b/net/dccp/output.c
index c96119fda688..d6bb753bf6ad 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -99,8 +99,8 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
/* Build DCCP header and checksum it. */
dh = dccp_zeroed_hdr(skb, dccp_header_size);
dh->dccph_type = dcb->dccpd_type;
- dh->dccph_sport = inet->sport;
- dh->dccph_dport = inet->dport;
+ dh->dccph_sport = inet->inet_sport;
+ dh->dccph_dport = inet->inet_dport;
dh->dccph_doff = (dccp_header_size + dcb->dccpd_opt_len) / 4;
dh->dccph_ccval = dcb->dccpd_ccval;
dh->dccph_cscov = dp->dccps_pcslen;
diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 5e6ec8b9b7b6..dc328425fa20 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -80,19 +80,20 @@ static int jdccp_sendmsg(struct kiocb *iocb, struct sock *sk,
if (ccid_get_current_tx_ccid(dccp_sk(sk)) == DCCPC_CCID3)
hc = ccid3_hc_tx_sk(sk);
- if (port == 0 || ntohs(inet->dport) == port ||
- ntohs(inet->sport) == port) {
+ if (port == 0 || ntohs(inet->inet_dport) == port ||
+ ntohs(inet->inet_sport) == port) {
if (hc)
printl("%pI4:%u %pI4:%u %d %d %d %d %u %llu %llu %d\n",
- &inet->saddr, ntohs(inet->sport),
- &inet->daddr, ntohs(inet->dport), size,
+ &inet->inet_saddr, ntohs(inet->inet_sport),
+ &inet->inet_daddr, ntohs(inet->inet_dport), size,
hc->tx_s, hc->tx_rtt, hc->tx_p,
hc->tx_x_calc, hc->tx_x_recv >> 6,
hc->tx_x >> 6, hc->tx_t_ipi);
else
printl("%pI4:%u %pI4:%u %d\n",
- &inet->saddr, ntohs(inet->sport),
- &inet->daddr, ntohs(inet->dport), size);
+ &inet->inet_saddr, ntohs(inet->inet_sport),
+ &inet->inet_daddr, ntohs(inet->inet_dport),
+ size);
}
jprobe_return();
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index ecb203fff501..671cd1413d59 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -278,7 +278,7 @@ int dccp_disconnect(struct sock *sk, int flags)
sk->sk_send_head = NULL;
}
- inet->dport = 0;
+ inet->inet_dport = 0;
if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
inet_reset_saddr(sk);
@@ -290,7 +290,7 @@ int dccp_disconnect(struct sock *sk, int flags)
inet_csk_delack_init(sk);
__sk_dst_reset(sk);
- WARN_ON(inet->num && !icsk->icsk_bind_hash);
+ WARN_ON(inet->inet_num && !icsk->icsk_bind_hash);
sk->sk_error_report(sk);
return err;