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sctp: get netns from asoc and ep base

Browse source 
Commit 312434617c ("sctp: cache netns in sctp_ep_common") set netns
in asoc and ep base since they're created, and it will never change.
It's a better way to get netns from asoc and ep base, comparing to
calling sock_net().

This patch is to replace them.

v1->v2:
  - no change.

Suggested-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2019-12-09 13:45:18 +08:00 committed by David S. Miller
parent 26c97a2d82
commit 4e7696d90b
14 changed files with 49 additions and 62 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
net/sctp/associola.c
View file

@ -584,7 +584,6 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
const gfp_t gfp,
const int peer_state)
{
struct net *net = sock_net(asoc->base.sk);
struct sctp_transport *peer;
struct sctp_sock *sp;
unsigned short port;
@ -614,7 +613,7 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
return peer;
}
peer = sctp_transport_new(net, addr, gfp);
peer = sctp_transport_new(asoc->base.net, addr, gfp);
if (!peer)
return NULL;
@ -974,7 +973,7 @@ static void sctp_assoc_bh_rcv(struct work_struct *work)
struct sctp_association *asoc =
container_of(work, struct sctp_association,
base.inqueue.immediate);
struct net *net = sock_net(asoc->base.sk);
struct net *net = asoc->base.net;
union sctp_subtype subtype;
struct sctp_endpoint *ep;
struct sctp_chunk *chunk;
@ -1442,7 +1441,8 @@ void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
/* Should we send a SACK to update our peer? */
static inline bool sctp_peer_needs_update(struct sctp_association *asoc)
{
struct net *net = sock_net(asoc->base.sk);
struct net *net = asoc->base.net;
switch (asoc->state) {
case SCTP_STATE_ESTABLISHED:
case SCTP_STATE_SHUTDOWN_PENDING:
@ -1576,7 +1576,7 @@ int sctp_assoc_set_bind_addr_from_ep(struct sctp_association *asoc,
if (asoc->peer.ipv6_address)
flags |= SCTP_ADDR6_PEERSUPP;
return sctp_bind_addr_copy(sock_net(asoc->base.sk),
return sctp_bind_addr_copy(asoc->base.net,
&asoc->base.bind_addr,
&asoc->ep->base.bind_addr,
scope, gfp, flags);

2
net/sctp/chunk.c
View file

@ -225,7 +225,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
if (msg_len >= first_len) {
msg->can_delay = 0;
if (msg_len > first_len)
SCTP_INC_STATS(sock_net(asoc->base.sk),
SCTP_INC_STATS(asoc->base.net,
SCTP_MIB_FRAGUSRMSGS);
} else {
/* Which may be the only one... */

6
net/sctp/endpointola.c
View file

@ -244,7 +244,7 @@ struct sctp_endpoint *sctp_endpoint_is_match(struct sctp_endpoint *ep,
struct sctp_endpoint *retval = NULL;
if ((htons(ep->base.bind_addr.port) == laddr->v4.sin_port) &&
net_eq(sock_net(ep->base.sk), net)) {
net_eq(ep->base.net, net)) {
if (sctp_bind_addr_match(&ep->base.bind_addr, laddr,
sctp_sk(ep->base.sk)))
retval = ep;
@ -292,8 +292,8 @@ bool sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
const union sctp_addr *paddr)
{
struct sctp_sockaddr_entry *addr;
struct net *net = ep->base.net;
struct sctp_bind_addr *bp;
struct net *net = sock_net(ep->base.sk);
bp = &ep->base.bind_addr;
/* This function is called with the socket lock held,
@ -384,7 +384,7 @@ static void sctp_endpoint_bh_rcv(struct work_struct *work)
if (asoc && sctp_chunk_is_data(chunk))
asoc->peer.last_data_from = chunk->transport;
else {
SCTP_INC_STATS(sock_net(ep->base.sk), SCTP_MIB_INCTRLCHUNKS);
SCTP_INC_STATS(ep->base.net, SCTP_MIB_INCTRLCHUNKS);
if (asoc)
asoc->stats.ictrlchunks++;
}

5
net/sctp/input.c
View file

@ -937,7 +937,7 @@ int sctp_hash_transport(struct sctp_transport *t)
if (t->asoc->temp)
return 0;
arg.net = sock_net(t->asoc->base.sk);
arg.net = t->asoc->base.net;
arg.paddr = &t->ipaddr;
arg.lport = htons(t->asoc->base.bind_addr.port);
@ -1004,12 +1004,11 @@ struct sctp_transport *sctp_epaddr_lookup_transport(
const struct sctp_endpoint *ep,
const union sctp_addr *paddr)
{
struct net *net = sock_net(ep->base.sk);
struct rhlist_head *tmp, *list;
struct sctp_transport *t;
struct sctp_hash_cmp_arg arg = {
.paddr = paddr,
.net = net,
.net = ep->base.net,
.lport = htons(ep->base.bind_addr.port),
};

2
net/sctp/output.c
View file

@ -282,7 +282,7 @@ static enum sctp_xmit sctp_packet_bundle_sack(struct sctp_packet *pkt,
sctp_chunk_free(sack);
goto out;
}
SCTP_INC_STATS(sock_net(asoc->base.sk),
SCTP_INC_STATS(asoc->base.net,
SCTP_MIB_OUTCTRLCHUNKS);
asoc->stats.octrlchunks++;
asoc->peer.sack_needed = 0;

6
net/sctp/outqueue.c
View file

@ -279,7 +279,7 @@ void sctp_outq_free(struct sctp_outq *q)
/* Put a new chunk in an sctp_outq. */
void sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk, gfp_t gfp)
{
struct net *net = sock_net(q->asoc->base.sk);
struct net *net = q->asoc->base.net;
pr_debug("%s: outq:%p, chunk:%p[%s]\n", __func__, q, chunk,
chunk && chunk->chunk_hdr ?
@ -533,7 +533,7 @@ void sctp_retransmit_mark(struct sctp_outq *q,
void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
enum sctp_retransmit_reason reason)
{
struct net *net = sock_net(q->asoc->base.sk);
struct net *net = q->asoc->base.net;
switch (reason) {
case SCTP_RTXR_T3_RTX:
@ -1884,6 +1884,6 @@ void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 ctsn)
if (ftsn_chunk) {
list_add_tail(&ftsn_chunk->list, &q->control_chunk_list);
SCTP_INC_STATS(sock_net(asoc->base.sk), SCTP_MIB_OUTCTRLCHUNKS);
SCTP_INC_STATS(asoc->base.net, SCTP_MIB_OUTCTRLCHUNKS);
}
}

5
net/sctp/sm_make_chunk.c
View file

@ -2307,7 +2307,6 @@ int sctp_process_init(struct sctp_association *asoc, struct sctp_chunk *chunk,
const union sctp_addr *peer_addr,
struct sctp_init_chunk *peer_init, gfp_t gfp)
{
struct net *net = sock_net(asoc->base.sk);
struct sctp_transport *transport;
struct list_head *pos, *temp;
union sctp_params param;
@ -2363,7 +2362,7 @@ int sctp_process_init(struct sctp_association *asoc, struct sctp_chunk *chunk,
* also give us an option to silently ignore the packet, which
* is what we'll do here.
*/
if (!net->sctp.addip_noauth &&
if (!asoc->base.net->sctp.addip_noauth &&
(asoc->peer.asconf_capable && !asoc->peer.auth_capable)) {
asoc->peer.addip_disabled_mask |= (SCTP_PARAM_ADD_IP |
SCTP_PARAM_DEL_IP |
@ -2491,9 +2490,9 @@ static int sctp_process_param(struct sctp_association *asoc,
const union sctp_addr *peer_addr,
gfp_t gfp)
{
struct net *net = sock_net(asoc->base.sk);
struct sctp_endpoint *ep = asoc->ep;
union sctp_addr_param *addr_param;
struct net *net = asoc->base.net;
struct sctp_transport *t;
enum sctp_scope scope;
union sctp_addr addr;

16
net/sctp/sm_sideeffect.c
View file

@ -516,8 +516,6 @@ static void sctp_do_8_2_transport_strike(struct sctp_cmd_seq *commands,
struct sctp_transport *transport,
int is_hb)
{
struct net *net = sock_net(asoc->base.sk);
/* The check for association's overall error counter exceeding the
* threshold is done in the state function.
*/
@ -544,10 +542,10 @@ static void sctp_do_8_2_transport_strike(struct sctp_cmd_seq *commands,
* is SCTP_ACTIVE, then mark this transport as Partially Failed,
* see SCTP Quick Failover Draft, section 5.1
*/
if (net->sctp.pf_enable &&
(transport->state == SCTP_ACTIVE) &&
(transport->error_count < transport->pathmaxrxt) &&
(transport->error_count > transport->pf_retrans)) {
if (asoc->base.net->sctp.pf_enable &&
transport->state == SCTP_ACTIVE &&
transport->error_count < transport->pathmaxrxt &&
transport->error_count > transport->pf_retrans) {
sctp_assoc_control_transport(asoc, transport,
SCTP_TRANSPORT_PF,
@ -798,10 +796,8 @@ static int sctp_cmd_process_sack(struct sctp_cmd_seq *cmds,
int err = 0;
if (sctp_outq_sack(&asoc->outqueue, chunk)) {
struct net *net = sock_net(asoc->base.sk);
/* There are no more TSNs awaiting SACK. */
err = sctp_do_sm(net, SCTP_EVENT_T_OTHER,
err = sctp_do_sm(asoc->base.net, SCTP_EVENT_T_OTHER,
SCTP_ST_OTHER(SCTP_EVENT_NO_PENDING_TSN),
asoc->state, asoc->ep, asoc, NULL,
GFP_ATOMIC);
@ -834,7 +830,7 @@ static void sctp_cmd_assoc_update(struct sctp_cmd_seq *cmds,
struct sctp_association *asoc,
struct sctp_association *new)
{
struct net *net = sock_net(asoc->base.sk);
struct net *net = asoc->base.net;
struct sctp_chunk *abort;
if (!sctp_assoc_update(asoc, new))

2
net/sctp/sm_statefuns.c
View file

@ -1320,7 +1320,7 @@ static int sctp_sf_check_restart_addrs(const struct sctp_association *new_asoc,
struct sctp_chunk *init,
struct sctp_cmd_seq *commands)
{
struct net *net = sock_net(new_asoc->base.sk);
struct net *net = new_asoc->base.net;
struct sctp_transport *new_addr;
int ret = 1;

10
net/sctp/socket.c
View file

@ -436,7 +436,6 @@ static int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
static int sctp_send_asconf(struct sctp_association *asoc,
struct sctp_chunk *chunk)
{
struct net *net = sock_net(asoc->base.sk);
int retval = 0;
/* If there is an outstanding ASCONF chunk, queue it for later
@ -449,7 +448,7 @@ static int sctp_send_asconf(struct sctp_association *asoc,
/* Hold the chunk until an ASCONF_ACK is received. */
sctp_chunk_hold(chunk);
retval = sctp_primitive_ASCONF(net, asoc, chunk);
retval = sctp_primitive_ASCONF(asoc->base.net, asoc, chunk);
if (retval)
sctp_chunk_free(chunk);
else
@ -2428,9 +2427,8 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
int error;
if (params->spp_flags & SPP_HB_DEMAND && trans) {
struct net *net = sock_net(trans->asoc->base.sk);
error = sctp_primitive_REQUESTHEARTBEAT(net, trans->asoc, trans);
error = sctp_primitive_REQUESTHEARTBEAT(trans->asoc->base.net,
trans->asoc, trans);
if (error)
return error;
}
@ -5364,7 +5362,7 @@ struct sctp_transport *sctp_transport_get_next(struct net *net,
if (!sctp_transport_hold(t))
continue;
if (net_eq(sock_net(t->asoc->base.sk), net) &&
if (net_eq(t->asoc->base.net, net) &&
t->asoc->peer.primary_path == t)
break;

3
net/sctp/stream.c
View file

@ -218,10 +218,9 @@ void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new)
static int sctp_send_reconf(struct sctp_association *asoc,
struct sctp_chunk *chunk)
{
struct net *net = sock_net(asoc->base.sk);
int retval = 0;
retval = sctp_primitive_RECONF(net, asoc, chunk);
retval = sctp_primitive_RECONF(asoc->base.net, asoc, chunk);
if (retval)
sctp_chunk_free(chunk);

23
net/sctp/stream_interleave.c
View file

@ -241,9 +241,8 @@ static struct sctp_ulpevent *sctp_intl_retrieve_partial(
if (!first_frag)
return NULL;
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
&ulpq->reasm, first_frag,
last_frag);
retval = sctp_make_reassembled_event(ulpq->asoc->base.net, &ulpq->reasm,
first_frag, last_frag);
if (retval) {
sin->fsn = next_fsn;
if (is_last) {
@ -326,7 +325,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled(
pd_point = sctp_sk(asoc->base.sk)->pd_point;
if (pd_point && pd_point <= pd_len) {
retval = sctp_make_reassembled_event(sock_net(asoc->base.sk),
retval = sctp_make_reassembled_event(asoc->base.net,
&ulpq->reasm,
pd_first, pd_last);
if (retval) {
@ -337,8 +336,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled(
goto out;
found:
retval = sctp_make_reassembled_event(sock_net(asoc->base.sk),
&ulpq->reasm,
retval = sctp_make_reassembled_event(asoc->base.net, &ulpq->reasm,
first_frag, pos);
if (retval)
retval->msg_flags |= MSG_EOR;
@ -630,7 +628,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_partial_uo(
if (!first_frag)
return NULL;
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
retval = sctp_make_reassembled_event(ulpq->asoc->base.net,
&ulpq->reasm_uo, first_frag,
last_frag);
if (retval) {
@ -716,7 +714,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled_uo(
pd_point = sctp_sk(asoc->base.sk)->pd_point;
if (pd_point && pd_point <= pd_len) {
retval = sctp_make_reassembled_event(sock_net(asoc->base.sk),
retval = sctp_make_reassembled_event(asoc->base.net,
&ulpq->reasm_uo,
pd_first, pd_last);
if (retval) {
@ -727,8 +725,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled_uo(
goto out;
found:
retval = sctp_make_reassembled_event(sock_net(asoc->base.sk),
&ulpq->reasm_uo,
retval = sctp_make_reassembled_event(asoc->base.net, &ulpq->reasm_uo,
first_frag, pos);
if (retval)
retval->msg_flags |= MSG_EOR;
@ -814,7 +811,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_first_uo(struct sctp_ulpq *ulpq)
return NULL;
out:
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
retval = sctp_make_reassembled_event(ulpq->asoc->base.net,
&ulpq->reasm_uo, first_frag,
last_frag);
if (retval) {
@ -921,7 +918,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_first(struct sctp_ulpq *ulpq)
return NULL;
out:
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
retval = sctp_make_reassembled_event(ulpq->asoc->base.net,
&ulpq->reasm, first_frag,
last_frag);
if (retval) {
@ -1159,7 +1156,7 @@ static void sctp_generate_iftsn(struct sctp_outq *q, __u32 ctsn)
if (ftsn_chunk) {
list_add_tail(&ftsn_chunk->list, &q->control_chunk_list);
SCTP_INC_STATS(sock_net(asoc->base.sk), SCTP_MIB_OUTCTRLCHUNKS);
SCTP_INC_STATS(asoc->base.net, SCTP_MIB_OUTCTRLCHUNKS);
}
}

2
net/sctp/transport.c
View file

@ -334,7 +334,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
pr_debug("%s: rto_pending not set on transport %p!\n", __func__, tp);
if (tp->rttvar || tp->srtt) {
struct net *net = sock_net(tp->asoc->base.sk);
struct net *net = tp->asoc->base.net;
/* 6.3.1 C3) When a new RTT measurement R' is made, set
* RTTVAR <- (1 - RTO.Beta) * RTTVAR + RTO.Beta * |SRTT - R'|
* SRTT <- (1 - RTO.Alpha) * SRTT + RTO.Alpha * R'

15
net/sctp/ulpqueue.c
View file

@ -486,10 +486,9 @@ static struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_ulpq *ul
cevent = sctp_skb2event(pd_first);
pd_point = sctp_sk(asoc->base.sk)->pd_point;
if (pd_point && pd_point <= pd_len) {
retval = sctp_make_reassembled_event(sock_net(asoc->base.sk),
retval = sctp_make_reassembled_event(asoc->base.net,
&ulpq->reasm,
pd_first,
pd_last);
pd_first, pd_last);
if (retval)
sctp_ulpq_set_pd(ulpq);
}
@ -497,7 +496,7 @@ static struct sctp_ulpevent *sctp_ulpq_retrieve_reassembled(struct sctp_ulpq *ul
done:
return retval;
found:
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
retval = sctp_make_reassembled_event(ulpq->asoc->base.net,
&ulpq->reasm, first_frag, pos);
if (retval)
retval->msg_flags |= MSG_EOR;
@ -563,8 +562,8 @@ static struct sctp_ulpevent *sctp_ulpq_retrieve_partial(struct sctp_ulpq *ulpq)
* further.
*/
done:
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
&ulpq->reasm, first_frag, last_frag);
retval = sctp_make_reassembled_event(ulpq->asoc->base.net, &ulpq->reasm,
first_frag, last_frag);
if (retval && is_last)
retval->msg_flags |= MSG_EOR;
@ -664,8 +663,8 @@ static struct sctp_ulpevent *sctp_ulpq_retrieve_first(struct sctp_ulpq *ulpq)
* further.
*/
done:
retval = sctp_make_reassembled_event(sock_net(ulpq->asoc->base.sk),
&ulpq->reasm, first_frag, last_frag);
retval = sctp_make_reassembled_event(ulpq->asoc->base.net, &ulpq->reasm,
first_frag, last_frag);
return retval;
}