From: Steffen Klassert <steffen.klassert@secunet.com>
To: netdev@vger.kernel.org
Subject: [PATCH RFC 2/2] net: Remove FLOWI_FLAG_CAN_SLEEP
Date: Thu, 10 Oct 2013 08:34:21 +0200 [thread overview]
Message-ID: <20131010063421.GQ7660@secunet.com> (raw)
In-Reply-To: <20131010063301.GO7660@secunet.com>
FLOWI_FLAG_CAN_SLEEP was used to notify xfrm about the posibility
to sleep until the needed states are resolved. This code is gone,
so FLOWI_FLAG_CAN_SLEEP is not needed anymore.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
include/net/flow.h | 3 +--
include/net/ipv6.h | 6 ++----
include/net/route.h | 8 +++-----
net/dccp/ipv4.c | 2 +-
net/dccp/ipv6.c | 8 ++++----
net/decnet/dn_route.c | 2 --
net/ipv4/af_inet.c | 2 +-
net/ipv4/datagram.c | 2 +-
net/ipv4/raw.c | 2 +-
net/ipv4/tcp_ipv4.c | 2 +-
net/ipv4/udp.c | 2 +-
net/ipv6/af_inet6.c | 2 +-
net/ipv6/datagram.c | 2 +-
net/ipv6/inet6_connection_sock.c | 4 ++--
net/ipv6/ip6_output.c | 12 ++----------
net/ipv6/ping.c | 2 +-
net/ipv6/raw.c | 2 +-
net/ipv6/syncookies.c | 2 +-
net/ipv6/tcp_ipv6.c | 4 ++--
net/ipv6/udp.c | 2 +-
net/l2tp/l2tp_ip6.c | 2 +-
net/sctp/ipv6.c | 4 ++--
22 files changed, 31 insertions(+), 46 deletions(-)
diff --git a/include/net/flow.h b/include/net/flow.h
index 65ce471..d23e7fa 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -20,8 +20,7 @@ struct flowi_common {
__u8 flowic_proto;
__u8 flowic_flags;
#define FLOWI_FLAG_ANYSRC 0x01
-#define FLOWI_FLAG_CAN_SLEEP 0x02
-#define FLOWI_FLAG_KNOWN_NH 0x04
+#define FLOWI_FLAG_KNOWN_NH 0x02
__u32 flowic_secid;
};
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index fe1c7f6..4f91706 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -710,11 +710,9 @@ void ip6_flush_pending_frames(struct sock *sk);
int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi6 *fl6);
struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep);
+ const struct in6_addr *final_dst);
struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep);
+ const struct in6_addr *final_dst);
struct dst_entry *ip6_blackhole_route(struct net *net,
struct dst_entry *orig_dst);
diff --git a/include/net/route.h b/include/net/route.h
index 0ad8e01..a25fcca 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -247,14 +247,12 @@ static inline char rt_tos2priority(u8 tos)
static inline void ip_route_connect_init(struct flowi4 *fl4, __be32 dst, __be32 src,
u32 tos, int oif, u8 protocol,
__be16 sport, __be16 dport,
- struct sock *sk, bool can_sleep)
+ struct sock *sk)
{
__u8 flow_flags = 0;
if (inet_sk(sk)->transparent)
flow_flags |= FLOWI_FLAG_ANYSRC;
- if (can_sleep)
- flow_flags |= FLOWI_FLAG_CAN_SLEEP;
flowi4_init_output(fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE,
protocol, flow_flags, dst, src, dport, sport);
@@ -264,13 +262,13 @@ static inline struct rtable *ip_route_connect(struct flowi4 *fl4,
__be32 dst, __be32 src, u32 tos,
int oif, u8 protocol,
__be16 sport, __be16 dport,
- struct sock *sk, bool can_sleep)
+ struct sock *sk)
{
struct net *net = sock_net(sk);
struct rtable *rt;
ip_route_connect_init(fl4, dst, src, tos, oif, protocol,
- sport, dport, sk, can_sleep);
+ sport, dport, sk);
if (!dst || !src) {
rt = __ip_route_output_key(net, fl4);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ebc54fe..751637a 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -75,7 +75,7 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
rt = ip_route_connect(fl4, nexthop, inet->inet_saddr,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
IPPROTO_DCCP,
- orig_sport, orig_dport, sk, true);
+ orig_sport, orig_dport, sk);
if (IS_ERR(rt))
return PTR_ERR(rt);
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 6cf9f77..3d2574e 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -237,7 +237,7 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
final_p = fl6_update_dst(&fl6, np->opt, &final);
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
dst = NULL;
@@ -302,7 +302,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
security_skb_classify_flow(rxskb, flowi6_to_flowi(&fl6));
/* sk = NULL, but it is safe for now. RST socket required. */
- dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
+ dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL);
if (!IS_ERR(dst)) {
skb_dst_set(skb, dst);
ip6_xmit(ctl_sk, skb, &fl6, NULL, 0);
@@ -513,7 +513,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
fl6.fl6_sport = inet_rsk(req)->loc_port;
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst))
goto out;
}
@@ -933,7 +933,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
final_p = fl6_update_dst(&fl6, np->opt, &final);
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto failure;
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index fe32388..ad2efa5 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1288,8 +1288,6 @@ int dn_route_output_sock(struct dst_entry __rcu **pprt, struct flowidn *fl, stru
err = __dn_route_output_key(pprt, fl, flags & MSG_TRYHARD);
if (err == 0 && fl->flowidn_proto) {
- if (!(flags & MSG_DONTWAIT))
- fl->flowidn_flags |= FLOWI_FLAG_CAN_SLEEP;
*pprt = xfrm_lookup(&init_net, *pprt,
flowidn_to_flowi(fl), sk, 0);
if (IS_ERR(*pprt)) {
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 7a1874b..c3bf51e 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1162,7 +1162,7 @@ static int inet_sk_reselect_saddr(struct sock *sk)
fl4 = &inet->cork.fl.u.ip4;
rt = ip_route_connect(fl4, daddr, 0, RT_CONN_FLAGS(sk),
sk->sk_bound_dev_if, sk->sk_protocol,
- inet->inet_sport, inet->inet_dport, sk, false);
+ inet->inet_sport, inet->inet_dport, sk);
if (IS_ERR(rt))
return PTR_ERR(rt);
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index b28e863..dcd4148 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -53,7 +53,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
rt = ip_route_connect(fl4, usin->sin_addr.s_addr, saddr,
RT_CONN_FLAGS(sk), oif,
sk->sk_protocol,
- inet->inet_sport, usin->sin_port, sk, true);
+ inet->inet_sport, usin->sin_port, sk);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
if (err == -ENETUNREACH)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index a3fe534..6fd4d0c 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -573,7 +573,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
RT_SCOPE_UNIVERSE,
inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,
- inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP |
+ inet_sk_flowi_flags(sk) |
(inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
daddr, saddr, 0, 0);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index b14266b..6959be9 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -173,7 +173,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
rt = ip_route_connect(fl4, nexthop, inet->inet_saddr,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
IPPROTO_TCP,
- orig_sport, orig_dport, sk, true);
+ orig_sport, orig_dport, sk);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
if (err == -ENETUNREACH)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 22462d94..70a9e28 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -966,7 +966,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
fl4 = &fl4_stack;
flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos,
RT_SCOPE_UNIVERSE, sk->sk_protocol,
- inet_sk_flowi_flags(sk)|FLOWI_FLAG_CAN_SLEEP,
+ inet_sk_flowi_flags(sk),
faddr, saddr, dport, inet->inet_sport);
security_sk_classify_flow(sk, flowi4_to_flowi(fl4));
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 4966b12..cd3c181 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -666,7 +666,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
final_p = fl6_update_dst(&fl6, np->opt, &final);
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
sk->sk_route_caps = 0;
sk->sk_err_soft = -PTR_ERR(dst);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 48b6bd2..0bc3297 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -171,7 +171,7 @@ ipv4_connected:
opt = flowlabel ? flowlabel->opt : np->opt;
final_p = fl6_update_dst(&fl6, opt, &final);
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
err = 0;
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index e4311cb..b65ca8c 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -86,7 +86,7 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk,
fl6->fl6_sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, flowi6_to_flowi(fl6));
- dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, fl6, final_p);
if (IS_ERR(dst))
return NULL;
@@ -217,7 +217,7 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk,
dst = __inet6_csk_dst_check(sk, np->dst_cookie);
if (!dst) {
- dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, fl6, final_p);
if (!IS_ERR(dst))
__inet6_csk_dst_store(sk, dst, NULL, NULL);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 3a692d5..7a0d3c4 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -937,7 +937,6 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup);
* @sk: socket which provides route info
* @fl6: flow to lookup
* @final_dst: final destination address for ipsec lookup
- * @can_sleep: we are in a sleepable context
*
* This function performs a route lookup on the given flow.
*
@@ -945,8 +944,7 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup);
* error code.
*/
struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep)
+ const struct in6_addr *final_dst)
{
struct dst_entry *dst = NULL;
int err;
@@ -956,8 +954,6 @@ struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
return ERR_PTR(err);
if (final_dst)
fl6->daddr = *final_dst;
- if (can_sleep)
- fl6->flowi6_flags |= FLOWI_FLAG_CAN_SLEEP;
return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);
}
@@ -968,7 +964,6 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow);
* @sk: socket which provides the dst cache and route info
* @fl6: flow to lookup
* @final_dst: final destination address for ipsec lookup
- * @can_sleep: we are in a sleepable context
*
* This function performs a route lookup on the given flow with the
* possibility of using the cached route in the socket if it is valid.
@@ -979,8 +974,7 @@ EXPORT_SYMBOL_GPL(ip6_dst_lookup_flow);
* error code.
*/
struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
- const struct in6_addr *final_dst,
- bool can_sleep)
+ const struct in6_addr *final_dst)
{
struct dst_entry *dst = sk_dst_check(sk, inet6_sk(sk)->dst_cookie);
int err;
@@ -992,8 +986,6 @@ struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
return ERR_PTR(err);
if (final_dst)
fl6->daddr = *final_dst;
- if (can_sleep)
- fl6->flowi6_flags |= FLOWI_FLAG_CAN_SLEEP;
return xfrm_lookup(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);
}
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 18f19df..4ec91bb 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -144,7 +144,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
else if (!fl6.flowi6_oif)
fl6.flowi6_oif = np->ucast_oif;
- dst = ip6_sk_dst_lookup_flow(sk, &fl6, daddr, 1);
+ dst = ip6_sk_dst_lookup_flow(sk, &fl6, daddr);
if (IS_ERR(dst))
return PTR_ERR(dst);
rt = (struct rt6_info *) dst;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 58916bb..c74425d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -866,7 +866,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
fl6.flowi6_oif = np->ucast_oif;
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto out;
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index d703218..b0fbbfc 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -243,7 +243,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
fl6.fl6_sport = inet_sk(sk)->inet_sport;
security_req_classify_flow(req, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst))
goto out_free;
}
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5c71501..b762603 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -258,7 +258,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto failure;
@@ -800,7 +800,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
* Underlying function will use this to retrieve the network
* namespace
*/
- dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL, false);
+ dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL);
if (!IS_ERR(dst)) {
skb_dst_set(buff, dst);
ip6_xmit(ctl_sk, buff, &fl6, NULL, tclass);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index f405815..a20b562 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1204,7 +1204,7 @@ do_udp_sendmsg:
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_sk_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_sk_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
dst = NULL;
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index b8a6039..d1149aa 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -598,7 +598,7 @@ static int l2tp_ip6_sendmsg(struct kiocb *iocb, struct sock *sk,
security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
- dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);
+ dst = ip6_dst_lookup_flow(sk, &fl6, final_p);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto out;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index e7b2d4f..2b3d523 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -263,7 +263,7 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
}
final_p = fl6_update_dst(fl6, np->opt, &final);
- dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, fl6, final_p);
if (!asoc || saddr)
goto out;
@@ -320,7 +320,7 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
fl6->saddr = baddr->v6.sin6_addr;
fl6->fl6_sport = baddr->v6.sin6_port;
final_p = fl6_update_dst(fl6, np->opt, &final);
- dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
+ dst = ip6_dst_lookup_flow(sk, fl6, final_p);
}
out:
--
1.7.9.5
next prev parent reply other threads:[~2013-10-10 6:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-10 6:33 [PATCH RFC 0/2] xfrm: Remove ancient sleeping code Steffen Klassert
2013-10-10 6:33 ` [PATCH RFC 1/2] xfrm: Remove ancient sleeping when the SA is in acquire state Steffen Klassert
2013-10-10 6:34 ` Steffen Klassert [this message]
2013-10-10 7:02 ` [PATCH RFC 0/2] xfrm: Remove ancient sleeping code Fan Du
2013-10-10 8:57 ` Steffen Klassert
2013-10-11 7:18 ` Fan Du
2013-10-11 9:21 ` Steffen Klassert
2013-10-11 19:01 ` David Miller
2013-10-15 7:30 ` Steffen Klassert
2013-10-15 23:14 ` David Miller
2013-10-15 23:58 ` Eric Dumazet
2013-10-16 9:45 ` Steffen Klassert
2013-10-16 11:42 ` [PATCH RFC] xfrm: Don't queue retransmitted packets if the original is still on the host Steffen Klassert
2013-10-18 20:19 ` David Miller
2013-10-18 20:23 ` Eric Dumazet
2013-10-18 20:34 ` David Miller
2013-10-21 14:51 ` Steffen Klassert
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