* [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
@ 2017-04-04 5:39 ` Xin Long
0 siblings, 0 replies; 6+ messages in thread
From: Xin Long @ 2017-04-04 5:39 UTC (permalink / raw)
To: network dev, linux-sctp; +Cc: davem, Marcelo Ricardo Leitner, Neil Horman
This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
updates to accomodate route invalidation."). As t->asoc can't be NULL
in sctp_transport_update_pmtu, it could get sk from asoc, and no need
to pass sk into that function.
It is also to remove some duplicated codes from that function.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
---
include/net/sctp/sctp.h | 5 ++---
include/net/sctp/structs.h | 6 +++---
net/sctp/associola.c | 6 +++---
net/sctp/input.c | 4 ++--
net/sctp/output.c | 4 ++--
net/sctp/socket.c | 6 +++---
net/sctp/transport.c | 19 +++++++------------
7 files changed, 22 insertions(+), 28 deletions(-)
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index d75caa7..069582e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -448,10 +448,9 @@ static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu)
return frag;
}
-static inline void sctp_assoc_pending_pmtu(struct sock *sk, struct sctp_association *asoc)
+static inline void sctp_assoc_pending_pmtu(struct sctp_association *asoc)
{
-
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
asoc->pmtu_pending = 0;
}
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index a127b7c..138f861 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -952,8 +952,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *, sctp_lower_cwnd_t);
void sctp_transport_burst_limited(struct sctp_transport *);
void sctp_transport_burst_reset(struct sctp_transport *);
unsigned long sctp_transport_timeout(struct sctp_transport *);
-void sctp_transport_reset(struct sctp_transport *);
-void sctp_transport_update_pmtu(struct sock *, struct sctp_transport *, u32);
+void sctp_transport_reset(struct sctp_transport *t);
+void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu);
void sctp_transport_immediate_rtx(struct sctp_transport *);
void sctp_transport_dst_release(struct sctp_transport *t);
void sctp_transport_dst_confirm(struct sctp_transport *t);
@@ -1954,7 +1954,7 @@ void sctp_assoc_update(struct sctp_association *old,
__u32 sctp_association_get_next_tsn(struct sctp_association *);
-void sctp_assoc_sync_pmtu(struct sock *, struct sctp_association *);
+void sctp_assoc_sync_pmtu(struct sctp_association *asoc);
void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);
void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned int);
void sctp_assoc_set_primary(struct sctp_association *,
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 0b26df5..a9708da 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1412,7 +1412,7 @@ sctp_assoc_choose_alter_transport(struct sctp_association *asoc,
/* Update the association's pmtu and frag_point by going through all the
* transports. This routine is called when a transport's PMTU has changed.
*/
-void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
+void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
{
struct sctp_transport *t;
__u32 pmtu = 0;
@@ -1424,8 +1424,8 @@ void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
list_for_each_entry(t, &asoc->peer.transport_addr_list,
transports) {
if (t->pmtu_pending && t->dst) {
- sctp_transport_update_pmtu(sk, t,
- SCTP_TRUNC4(dst_mtu(t->dst)));
+ sctp_transport_update_pmtu(
+ t, SCTP_TRUNC4(dst_mtu(t->dst)));
t->pmtu_pending = 0;
}
if (!pmtu || (t->pathmtu < pmtu))
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2a28ab2..0e06a27 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -401,10 +401,10 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
if (t->param_flags & SPP_PMTUD_ENABLE) {
/* Update transports view of the MTU */
- sctp_transport_update_pmtu(sk, t, pmtu);
+ sctp_transport_update_pmtu(t, pmtu);
/* Update association pmtu. */
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
/* Retransmit with the new pmtu setting.
diff --git a/net/sctp/output.c b/net/sctp/output.c
index ec4d50a..1409a87 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -105,10 +105,10 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
if (!sctp_transport_dst_check(tp)) {
sctp_transport_route(tp, NULL, sctp_sk(sk));
if (asoc->param_flags & SPP_PMTUD_ENABLE)
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
} else if (!sctp_transport_pmtu_check(tp)) {
if (asoc->param_flags & SPP_PMTUD_ENABLE)
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
/* If there a is a prepend chunk stick it on the list before
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 12fbae2..c1401f4 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1907,7 +1907,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
}
if (asoc->pmtu_pending)
- sctp_assoc_pending_pmtu(sk, asoc);
+ sctp_assoc_pending_pmtu(asoc);
/* If fragmentation is disabled and the message length exceeds the
* association fragmentation point, return EMSGSIZE. The I-D
@@ -2435,7 +2435,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
if (trans) {
trans->pathmtu = params->spp_pathmtu;
- sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
+ sctp_assoc_sync_pmtu(asoc);
} else if (asoc) {
asoc->pathmtu = params->spp_pathmtu;
} else {
@@ -2451,7 +2451,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
(trans->param_flags & ~SPP_PMTUD) | pmtud_change;
if (update) {
sctp_transport_pmtu(trans, sctp_opt2sk(sp));
- sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
} else if (asoc) {
asoc->param_flags =
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 3379668..721eeeb 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -251,14 +251,13 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
}
-void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu)
+void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
{
- struct dst_entry *dst;
+ struct dst_entry *dst = sctp_transport_dst_check(t);
if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
- __func__, pmtu,
- SCTP_DEFAULT_MINSEGMENT);
+ __func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
/* Use default minimum segment size and disable
* pmtu discovery on this transport.
*/
@@ -267,17 +266,13 @@ void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 p
t->pathmtu = pmtu;
}
- dst = sctp_transport_dst_check(t);
- if (!dst)
- t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
-
if (dst) {
- dst->ops->update_pmtu(dst, sk, NULL, pmtu);
-
+ dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
dst = sctp_transport_dst_check(t);
- if (!dst)
- t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
}
+
+ if (!dst)
+ t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
}
/* Caches the dst entry and source address for a transport's destination
--
2.1.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
@ 2017-04-04 5:39 ` Xin Long
0 siblings, 0 replies; 6+ messages in thread
From: Xin Long @ 2017-04-04 5:39 UTC (permalink / raw)
To: network dev, linux-sctp; +Cc: davem, Marcelo Ricardo Leitner, Neil Horman
This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
updates to accomodate route invalidation."). As t->asoc can't be NULL
in sctp_transport_update_pmtu, it could get sk from asoc, and no need
to pass sk into that function.
It is also to remove some duplicated codes from that function.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
---
include/net/sctp/sctp.h | 5 ++---
include/net/sctp/structs.h | 6 +++---
net/sctp/associola.c | 6 +++---
net/sctp/input.c | 4 ++--
net/sctp/output.c | 4 ++--
net/sctp/socket.c | 6 +++---
net/sctp/transport.c | 19 +++++++------------
7 files changed, 22 insertions(+), 28 deletions(-)
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index d75caa7..069582e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -448,10 +448,9 @@ static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu)
return frag;
}
-static inline void sctp_assoc_pending_pmtu(struct sock *sk, struct sctp_association *asoc)
+static inline void sctp_assoc_pending_pmtu(struct sctp_association *asoc)
{
-
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
asoc->pmtu_pending = 0;
}
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index a127b7c..138f861 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -952,8 +952,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *, sctp_lower_cwnd_t);
void sctp_transport_burst_limited(struct sctp_transport *);
void sctp_transport_burst_reset(struct sctp_transport *);
unsigned long sctp_transport_timeout(struct sctp_transport *);
-void sctp_transport_reset(struct sctp_transport *);
-void sctp_transport_update_pmtu(struct sock *, struct sctp_transport *, u32);
+void sctp_transport_reset(struct sctp_transport *t);
+void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu);
void sctp_transport_immediate_rtx(struct sctp_transport *);
void sctp_transport_dst_release(struct sctp_transport *t);
void sctp_transport_dst_confirm(struct sctp_transport *t);
@@ -1954,7 +1954,7 @@ void sctp_assoc_update(struct sctp_association *old,
__u32 sctp_association_get_next_tsn(struct sctp_association *);
-void sctp_assoc_sync_pmtu(struct sock *, struct sctp_association *);
+void sctp_assoc_sync_pmtu(struct sctp_association *asoc);
void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);
void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned int);
void sctp_assoc_set_primary(struct sctp_association *,
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 0b26df5..a9708da 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1412,7 +1412,7 @@ sctp_assoc_choose_alter_transport(struct sctp_association *asoc,
/* Update the association's pmtu and frag_point by going through all the
* transports. This routine is called when a transport's PMTU has changed.
*/
-void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
+void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
{
struct sctp_transport *t;
__u32 pmtu = 0;
@@ -1424,8 +1424,8 @@ void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
list_for_each_entry(t, &asoc->peer.transport_addr_list,
transports) {
if (t->pmtu_pending && t->dst) {
- sctp_transport_update_pmtu(sk, t,
- SCTP_TRUNC4(dst_mtu(t->dst)));
+ sctp_transport_update_pmtu(
+ t, SCTP_TRUNC4(dst_mtu(t->dst)));
t->pmtu_pending = 0;
}
if (!pmtu || (t->pathmtu < pmtu))
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2a28ab2..0e06a27 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -401,10 +401,10 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
if (t->param_flags & SPP_PMTUD_ENABLE) {
/* Update transports view of the MTU */
- sctp_transport_update_pmtu(sk, t, pmtu);
+ sctp_transport_update_pmtu(t, pmtu);
/* Update association pmtu. */
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
/* Retransmit with the new pmtu setting.
diff --git a/net/sctp/output.c b/net/sctp/output.c
index ec4d50a..1409a87 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -105,10 +105,10 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
if (!sctp_transport_dst_check(tp)) {
sctp_transport_route(tp, NULL, sctp_sk(sk));
if (asoc->param_flags & SPP_PMTUD_ENABLE)
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
} else if (!sctp_transport_pmtu_check(tp)) {
if (asoc->param_flags & SPP_PMTUD_ENABLE)
- sctp_assoc_sync_pmtu(sk, asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
/* If there a is a prepend chunk stick it on the list before
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 12fbae2..c1401f4 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1907,7 +1907,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
}
if (asoc->pmtu_pending)
- sctp_assoc_pending_pmtu(sk, asoc);
+ sctp_assoc_pending_pmtu(asoc);
/* If fragmentation is disabled and the message length exceeds the
* association fragmentation point, return EMSGSIZE. The I-D
@@ -2435,7 +2435,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
if (trans) {
trans->pathmtu = params->spp_pathmtu;
- sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
+ sctp_assoc_sync_pmtu(asoc);
} else if (asoc) {
asoc->pathmtu = params->spp_pathmtu;
} else {
@@ -2451,7 +2451,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
(trans->param_flags & ~SPP_PMTUD) | pmtud_change;
if (update) {
sctp_transport_pmtu(trans, sctp_opt2sk(sp));
- sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
+ sctp_assoc_sync_pmtu(asoc);
}
} else if (asoc) {
asoc->param_flags diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 3379668..721eeeb 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -251,14 +251,13 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
}
-void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu)
+void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
{
- struct dst_entry *dst;
+ struct dst_entry *dst = sctp_transport_dst_check(t);
if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
- __func__, pmtu,
- SCTP_DEFAULT_MINSEGMENT);
+ __func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
/* Use default minimum segment size and disable
* pmtu discovery on this transport.
*/
@@ -267,17 +266,13 @@ void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 p
t->pathmtu = pmtu;
}
- dst = sctp_transport_dst_check(t);
- if (!dst)
- t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
-
if (dst) {
- dst->ops->update_pmtu(dst, sk, NULL, pmtu);
-
+ dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
dst = sctp_transport_dst_check(t);
- if (!dst)
- t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
}
+
+ if (!dst)
+ t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
}
/* Caches the dst entry and source address for a transport's destination
--
2.1.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
2017-04-04 5:39 ` Xin Long
@ 2017-04-04 21:51 ` Marcelo Ricardo Leitner
-1 siblings, 0 replies; 6+ messages in thread
From: Marcelo Ricardo Leitner @ 2017-04-04 21:51 UTC (permalink / raw)
To: Xin Long; +Cc: network dev, linux-sctp, davem, Neil Horman
On Tue, Apr 04, 2017 at 01:39:55PM +0800, Xin Long wrote:
> This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
> updates to accomodate route invalidation."). As t->asoc can't be NULL
> in sctp_transport_update_pmtu, it could get sk from asoc, and no need
> to pass sk into that function.
>
> It is also to remove some duplicated codes from that function.
>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
> ---
> include/net/sctp/sctp.h | 5 ++---
> include/net/sctp/structs.h | 6 +++---
> net/sctp/associola.c | 6 +++---
> net/sctp/input.c | 4 ++--
> net/sctp/output.c | 4 ++--
> net/sctp/socket.c | 6 +++---
> net/sctp/transport.c | 19 +++++++------------
> 7 files changed, 22 insertions(+), 28 deletions(-)
>
> diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
> index d75caa7..069582e 100644
> --- a/include/net/sctp/sctp.h
> +++ b/include/net/sctp/sctp.h
> @@ -448,10 +448,9 @@ static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu)
> return frag;
> }
>
> -static inline void sctp_assoc_pending_pmtu(struct sock *sk, struct sctp_association *asoc)
> +static inline void sctp_assoc_pending_pmtu(struct sctp_association *asoc)
> {
> -
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> asoc->pmtu_pending = 0;
> }
>
> diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
> index a127b7c..138f861 100644
> --- a/include/net/sctp/structs.h
> +++ b/include/net/sctp/structs.h
> @@ -952,8 +952,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *, sctp_lower_cwnd_t);
> void sctp_transport_burst_limited(struct sctp_transport *);
> void sctp_transport_burst_reset(struct sctp_transport *);
> unsigned long sctp_transport_timeout(struct sctp_transport *);
> -void sctp_transport_reset(struct sctp_transport *);
> -void sctp_transport_update_pmtu(struct sock *, struct sctp_transport *, u32);
> +void sctp_transport_reset(struct sctp_transport *t);
> +void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu);
> void sctp_transport_immediate_rtx(struct sctp_transport *);
> void sctp_transport_dst_release(struct sctp_transport *t);
> void sctp_transport_dst_confirm(struct sctp_transport *t);
> @@ -1954,7 +1954,7 @@ void sctp_assoc_update(struct sctp_association *old,
>
> __u32 sctp_association_get_next_tsn(struct sctp_association *);
>
> -void sctp_assoc_sync_pmtu(struct sock *, struct sctp_association *);
> +void sctp_assoc_sync_pmtu(struct sctp_association *asoc);
> void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);
> void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned int);
> void sctp_assoc_set_primary(struct sctp_association *,
> diff --git a/net/sctp/associola.c b/net/sctp/associola.c
> index 0b26df5..a9708da 100644
> --- a/net/sctp/associola.c
> +++ b/net/sctp/associola.c
> @@ -1412,7 +1412,7 @@ sctp_assoc_choose_alter_transport(struct sctp_association *asoc,
> /* Update the association's pmtu and frag_point by going through all the
> * transports. This routine is called when a transport's PMTU has changed.
> */
> -void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
> +void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
> {
> struct sctp_transport *t;
> __u32 pmtu = 0;
> @@ -1424,8 +1424,8 @@ void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
> list_for_each_entry(t, &asoc->peer.transport_addr_list,
> transports) {
> if (t->pmtu_pending && t->dst) {
> - sctp_transport_update_pmtu(sk, t,
> - SCTP_TRUNC4(dst_mtu(t->dst)));
> + sctp_transport_update_pmtu(
> + t, SCTP_TRUNC4(dst_mtu(t->dst)));
> t->pmtu_pending = 0;
> }
> if (!pmtu || (t->pathmtu < pmtu))
> diff --git a/net/sctp/input.c b/net/sctp/input.c
> index 2a28ab2..0e06a27 100644
> --- a/net/sctp/input.c
> +++ b/net/sctp/input.c
> @@ -401,10 +401,10 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
>
> if (t->param_flags & SPP_PMTUD_ENABLE) {
> /* Update transports view of the MTU */
> - sctp_transport_update_pmtu(sk, t, pmtu);
> + sctp_transport_update_pmtu(t, pmtu);
>
> /* Update association pmtu. */
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
>
> /* Retransmit with the new pmtu setting.
> diff --git a/net/sctp/output.c b/net/sctp/output.c
> index ec4d50a..1409a87 100644
> --- a/net/sctp/output.c
> +++ b/net/sctp/output.c
> @@ -105,10 +105,10 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
> if (!sctp_transport_dst_check(tp)) {
> sctp_transport_route(tp, NULL, sctp_sk(sk));
> if (asoc->param_flags & SPP_PMTUD_ENABLE)
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> } else if (!sctp_transport_pmtu_check(tp)) {
> if (asoc->param_flags & SPP_PMTUD_ENABLE)
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
>
> /* If there a is a prepend chunk stick it on the list before
> diff --git a/net/sctp/socket.c b/net/sctp/socket.c
> index 12fbae2..c1401f4 100644
> --- a/net/sctp/socket.c
> +++ b/net/sctp/socket.c
> @@ -1907,7 +1907,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
> }
>
> if (asoc->pmtu_pending)
> - sctp_assoc_pending_pmtu(sk, asoc);
> + sctp_assoc_pending_pmtu(asoc);
>
> /* If fragmentation is disabled and the message length exceeds the
> * association fragmentation point, return EMSGSIZE. The I-D
> @@ -2435,7 +2435,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
> if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
> if (trans) {
> trans->pathmtu = params->spp_pathmtu;
> - sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
> + sctp_assoc_sync_pmtu(asoc);
> } else if (asoc) {
> asoc->pathmtu = params->spp_pathmtu;
> } else {
> @@ -2451,7 +2451,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
> (trans->param_flags & ~SPP_PMTUD) | pmtud_change;
> if (update) {
> sctp_transport_pmtu(trans, sctp_opt2sk(sp));
> - sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
> } else if (asoc) {
> asoc->param_flags =
> diff --git a/net/sctp/transport.c b/net/sctp/transport.c
> index 3379668..721eeeb 100644
> --- a/net/sctp/transport.c
> +++ b/net/sctp/transport.c
> @@ -251,14 +251,13 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
> transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
> }
>
> -void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu)
> +void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
> {
> - struct dst_entry *dst;
> + struct dst_entry *dst = sctp_transport_dst_check(t);
>
> if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
> pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
> - __func__, pmtu,
> - SCTP_DEFAULT_MINSEGMENT);
> + __func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
> /* Use default minimum segment size and disable
> * pmtu discovery on this transport.
> */
> @@ -267,17 +266,13 @@ void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 p
> t->pathmtu = pmtu;
> }
>
> - dst = sctp_transport_dst_check(t);
> - if (!dst)
> - t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
> -
> if (dst) {
> - dst->ops->update_pmtu(dst, sk, NULL, pmtu);
> -
> + dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
> dst = sctp_transport_dst_check(t);
> - if (!dst)
> - t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
> }
> +
> + if (!dst)
> + t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
> }
>
> /* Caches the dst entry and source address for a transport's destination
> --
> 2.1.0
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
@ 2017-04-04 21:51 ` Marcelo Ricardo Leitner
0 siblings, 0 replies; 6+ messages in thread
From: Marcelo Ricardo Leitner @ 2017-04-04 21:51 UTC (permalink / raw)
To: Xin Long; +Cc: network dev, linux-sctp, davem, Neil Horman
On Tue, Apr 04, 2017 at 01:39:55PM +0800, Xin Long wrote:
> This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
> updates to accomodate route invalidation."). As t->asoc can't be NULL
> in sctp_transport_update_pmtu, it could get sk from asoc, and no need
> to pass sk into that function.
>
> It is also to remove some duplicated codes from that function.
>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
> ---
> include/net/sctp/sctp.h | 5 ++---
> include/net/sctp/structs.h | 6 +++---
> net/sctp/associola.c | 6 +++---
> net/sctp/input.c | 4 ++--
> net/sctp/output.c | 4 ++--
> net/sctp/socket.c | 6 +++---
> net/sctp/transport.c | 19 +++++++------------
> 7 files changed, 22 insertions(+), 28 deletions(-)
>
> diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
> index d75caa7..069582e 100644
> --- a/include/net/sctp/sctp.h
> +++ b/include/net/sctp/sctp.h
> @@ -448,10 +448,9 @@ static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu)
> return frag;
> }
>
> -static inline void sctp_assoc_pending_pmtu(struct sock *sk, struct sctp_association *asoc)
> +static inline void sctp_assoc_pending_pmtu(struct sctp_association *asoc)
> {
> -
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> asoc->pmtu_pending = 0;
> }
>
> diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
> index a127b7c..138f861 100644
> --- a/include/net/sctp/structs.h
> +++ b/include/net/sctp/structs.h
> @@ -952,8 +952,8 @@ void sctp_transport_lower_cwnd(struct sctp_transport *, sctp_lower_cwnd_t);
> void sctp_transport_burst_limited(struct sctp_transport *);
> void sctp_transport_burst_reset(struct sctp_transport *);
> unsigned long sctp_transport_timeout(struct sctp_transport *);
> -void sctp_transport_reset(struct sctp_transport *);
> -void sctp_transport_update_pmtu(struct sock *, struct sctp_transport *, u32);
> +void sctp_transport_reset(struct sctp_transport *t);
> +void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu);
> void sctp_transport_immediate_rtx(struct sctp_transport *);
> void sctp_transport_dst_release(struct sctp_transport *t);
> void sctp_transport_dst_confirm(struct sctp_transport *t);
> @@ -1954,7 +1954,7 @@ void sctp_assoc_update(struct sctp_association *old,
>
> __u32 sctp_association_get_next_tsn(struct sctp_association *);
>
> -void sctp_assoc_sync_pmtu(struct sock *, struct sctp_association *);
> +void sctp_assoc_sync_pmtu(struct sctp_association *asoc);
> void sctp_assoc_rwnd_increase(struct sctp_association *, unsigned int);
> void sctp_assoc_rwnd_decrease(struct sctp_association *, unsigned int);
> void sctp_assoc_set_primary(struct sctp_association *,
> diff --git a/net/sctp/associola.c b/net/sctp/associola.c
> index 0b26df5..a9708da 100644
> --- a/net/sctp/associola.c
> +++ b/net/sctp/associola.c
> @@ -1412,7 +1412,7 @@ sctp_assoc_choose_alter_transport(struct sctp_association *asoc,
> /* Update the association's pmtu and frag_point by going through all the
> * transports. This routine is called when a transport's PMTU has changed.
> */
> -void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
> +void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
> {
> struct sctp_transport *t;
> __u32 pmtu = 0;
> @@ -1424,8 +1424,8 @@ void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
> list_for_each_entry(t, &asoc->peer.transport_addr_list,
> transports) {
> if (t->pmtu_pending && t->dst) {
> - sctp_transport_update_pmtu(sk, t,
> - SCTP_TRUNC4(dst_mtu(t->dst)));
> + sctp_transport_update_pmtu(
> + t, SCTP_TRUNC4(dst_mtu(t->dst)));
> t->pmtu_pending = 0;
> }
> if (!pmtu || (t->pathmtu < pmtu))
> diff --git a/net/sctp/input.c b/net/sctp/input.c
> index 2a28ab2..0e06a27 100644
> --- a/net/sctp/input.c
> +++ b/net/sctp/input.c
> @@ -401,10 +401,10 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
>
> if (t->param_flags & SPP_PMTUD_ENABLE) {
> /* Update transports view of the MTU */
> - sctp_transport_update_pmtu(sk, t, pmtu);
> + sctp_transport_update_pmtu(t, pmtu);
>
> /* Update association pmtu. */
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
>
> /* Retransmit with the new pmtu setting.
> diff --git a/net/sctp/output.c b/net/sctp/output.c
> index ec4d50a..1409a87 100644
> --- a/net/sctp/output.c
> +++ b/net/sctp/output.c
> @@ -105,10 +105,10 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
> if (!sctp_transport_dst_check(tp)) {
> sctp_transport_route(tp, NULL, sctp_sk(sk));
> if (asoc->param_flags & SPP_PMTUD_ENABLE)
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> } else if (!sctp_transport_pmtu_check(tp)) {
> if (asoc->param_flags & SPP_PMTUD_ENABLE)
> - sctp_assoc_sync_pmtu(sk, asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
>
> /* If there a is a prepend chunk stick it on the list before
> diff --git a/net/sctp/socket.c b/net/sctp/socket.c
> index 12fbae2..c1401f4 100644
> --- a/net/sctp/socket.c
> +++ b/net/sctp/socket.c
> @@ -1907,7 +1907,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
> }
>
> if (asoc->pmtu_pending)
> - sctp_assoc_pending_pmtu(sk, asoc);
> + sctp_assoc_pending_pmtu(asoc);
>
> /* If fragmentation is disabled and the message length exceeds the
> * association fragmentation point, return EMSGSIZE. The I-D
> @@ -2435,7 +2435,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
> if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
> if (trans) {
> trans->pathmtu = params->spp_pathmtu;
> - sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
> + sctp_assoc_sync_pmtu(asoc);
> } else if (asoc) {
> asoc->pathmtu = params->spp_pathmtu;
> } else {
> @@ -2451,7 +2451,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
> (trans->param_flags & ~SPP_PMTUD) | pmtud_change;
> if (update) {
> sctp_transport_pmtu(trans, sctp_opt2sk(sp));
> - sctp_assoc_sync_pmtu(sctp_opt2sk(sp), asoc);
> + sctp_assoc_sync_pmtu(asoc);
> }
> } else if (asoc) {
> asoc->param_flags > diff --git a/net/sctp/transport.c b/net/sctp/transport.c
> index 3379668..721eeeb 100644
> --- a/net/sctp/transport.c
> +++ b/net/sctp/transport.c
> @@ -251,14 +251,13 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
> transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT;
> }
>
> -void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 pmtu)
> +void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu)
> {
> - struct dst_entry *dst;
> + struct dst_entry *dst = sctp_transport_dst_check(t);
>
> if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) {
> pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n",
> - __func__, pmtu,
> - SCTP_DEFAULT_MINSEGMENT);
> + __func__, pmtu, SCTP_DEFAULT_MINSEGMENT);
> /* Use default minimum segment size and disable
> * pmtu discovery on this transport.
> */
> @@ -267,17 +266,13 @@ void sctp_transport_update_pmtu(struct sock *sk, struct sctp_transport *t, u32 p
> t->pathmtu = pmtu;
> }
>
> - dst = sctp_transport_dst_check(t);
> - if (!dst)
> - t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
> -
> if (dst) {
> - dst->ops->update_pmtu(dst, sk, NULL, pmtu);
> -
> + dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu);
> dst = sctp_transport_dst_check(t);
> - if (!dst)
> - t->af_specific->get_dst(t, &t->saddr, &t->fl, sk);
> }
> +
> + if (!dst)
> + t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk);
> }
>
> /* Caches the dst entry and source address for a transport's destination
> --
> 2.1.0
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
2017-04-04 5:39 ` Xin Long
@ 2017-04-05 14:20 ` David Miller
-1 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2017-04-05 14:20 UTC (permalink / raw)
To: lucien.xin; +Cc: netdev, linux-sctp, marcelo.leitner, nhorman
From: Xin Long <lucien.xin@gmail.com>
Date: Tue, 4 Apr 2017 13:39:55 +0800
> This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
> updates to accomodate route invalidation."). As t->asoc can't be NULL
> in sctp_transport_update_pmtu, it could get sk from asoc, and no need
> to pass sk into that function.
>
> It is also to remove some duplicated codes from that function.
>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu
@ 2017-04-05 14:20 ` David Miller
0 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2017-04-05 14:20 UTC (permalink / raw)
To: lucien.xin; +Cc: netdev, linux-sctp, marcelo.leitner, nhorman
From: Xin Long <lucien.xin@gmail.com>
Date: Tue, 4 Apr 2017 13:39:55 +0800
> This patch is almost to revert commit 02f3d4ce9e81 ("sctp: Adjust PMTU
> updates to accomodate route invalidation."). As t->asoc can't be NULL
> in sctp_transport_update_pmtu, it could get sk from asoc, and no need
> to pass sk into that function.
>
> It is also to remove some duplicated codes from that function.
>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-04-05 14:20 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-04-04 5:39 [PATCH net] sctp: get sock from transport in sctp_transport_update_pmtu Xin Long
2017-04-04 5:39 ` Xin Long
2017-04-04 21:51 ` Marcelo Ricardo Leitner
2017-04-04 21:51 ` Marcelo Ricardo Leitner
2017-04-05 14:20 ` David Miller
2017-04-05 14:20 ` David Miller
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