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Message-ID: <167308517827.1538866.14860940990577817685.stgit@warthog.procyon.org.uk>
Date: Sat, 07 Jan 2023 09:52:58 +0000
From: David Howells <dhowells@...hat.com>
To: netdev@...r.kernel.org
Cc: Marc Dionne <marc.dionne@...istor.com>,
linux-afs@...ts.infradead.org, dhowells@...hat.com,
linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net 01/19] rxrpc: Stash the network namespace pointer in
rxrpc_local
Stash the network namespace pointer in the rxrpc_local struct in addition
to a pointer to the rxrpc-specific net namespace info. Use this to remove
some places where the socket is passed as a parameter.
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Marc Dionne <marc.dionne@...istor.com>
cc: linux-afs@...ts.infradead.org
---
net/rxrpc/ar-internal.h | 10 +++++-----
net/rxrpc/call_accept.c | 2 +-
net/rxrpc/conn_client.c | 2 +-
net/rxrpc/local_object.c | 7 ++++---
net/rxrpc/peer_object.c | 23 ++++++++++-------------
5 files changed, 21 insertions(+), 23 deletions(-)
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 18092526d3c8..9cf763c338bc 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -283,7 +283,8 @@ struct rxrpc_local {
struct rcu_head rcu;
atomic_t active_users; /* Number of users of the local endpoint */
refcount_t ref; /* Number of references to the structure */
- struct rxrpc_net *rxnet; /* The network ns in which this resides */
+ struct net *net; /* The network namespace */
+ struct rxrpc_net *rxnet; /* Our bits in the network namespace */
struct hlist_node link;
struct socket *socket; /* my UDP socket */
struct task_struct *io_thread;
@@ -1063,12 +1064,11 @@ void rxrpc_peer_keepalive_worker(struct work_struct *);
*/
struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *,
const struct sockaddr_rxrpc *);
-struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *, struct rxrpc_local *,
- struct sockaddr_rxrpc *, gfp_t);
+struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *local,
+ struct sockaddr_rxrpc *srx, gfp_t gfp);
struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t,
enum rxrpc_peer_trace);
-void rxrpc_new_incoming_peer(struct rxrpc_sock *, struct rxrpc_local *,
- struct rxrpc_peer *);
+void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer);
void rxrpc_destroy_all_peers(struct rxrpc_net *);
struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *, enum rxrpc_peer_trace);
struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *, enum rxrpc_peer_trace);
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index c02401656fa9..c957e4415cdc 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -280,7 +280,7 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx,
(peer_tail + 1) &
(RXRPC_BACKLOG_MAX - 1));
- rxrpc_new_incoming_peer(rx, local, peer);
+ rxrpc_new_incoming_peer(local, peer);
}
/* Now allocate and set up the connection */
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 87efa0373aed..e4063c4f4bb2 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -378,7 +378,7 @@ static struct rxrpc_bundle *rxrpc_prep_call(struct rxrpc_sock *rx,
_enter("{%d,%lx},", call->debug_id, call->user_call_ID);
- cp->peer = rxrpc_lookup_peer(rx, cp->local, srx, gfp);
+ cp->peer = rxrpc_lookup_peer(cp->local, srx, gfp);
if (!cp->peer)
goto error;
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 270b63d8f37a..c0ac2fe07ec4 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -85,7 +85,7 @@ static long rxrpc_local_cmp_key(const struct rxrpc_local *local,
/*
* Allocate a new local endpoint.
*/
-static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet,
+static struct rxrpc_local *rxrpc_alloc_local(struct net *net,
const struct sockaddr_rxrpc *srx)
{
struct rxrpc_local *local;
@@ -94,7 +94,8 @@ static struct rxrpc_local *rxrpc_alloc_local(struct rxrpc_net *rxnet,
if (local) {
refcount_set(&local->ref, 1);
atomic_set(&local->active_users, 1);
- local->rxnet = rxnet;
+ local->net = net;
+ local->rxnet = rxrpc_net(net);
INIT_HLIST_NODE(&local->link);
init_rwsem(&local->defrag_sem);
init_completion(&local->io_thread_ready);
@@ -248,7 +249,7 @@ struct rxrpc_local *rxrpc_lookup_local(struct net *net,
goto found;
}
- local = rxrpc_alloc_local(rxnet, srx);
+ local = rxrpc_alloc_local(net, srx);
if (!local)
goto nomem;
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 4eecea2be307..8d7a715a0bb1 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -147,10 +147,10 @@ struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *local,
* assess the MTU size for the network interface through which this peer is
* reached
*/
-static void rxrpc_assess_MTU_size(struct rxrpc_sock *rx,
+static void rxrpc_assess_MTU_size(struct rxrpc_local *local,
struct rxrpc_peer *peer)
{
- struct net *net = sock_net(&rx->sk);
+ struct net *net = local->net;
struct dst_entry *dst;
struct rtable *rt;
struct flowi fl;
@@ -236,11 +236,11 @@ struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *local, gfp_t gfp,
/*
* Initialise peer record.
*/
-static void rxrpc_init_peer(struct rxrpc_sock *rx, struct rxrpc_peer *peer,
+static void rxrpc_init_peer(struct rxrpc_local *local, struct rxrpc_peer *peer,
unsigned long hash_key)
{
peer->hash_key = hash_key;
- rxrpc_assess_MTU_size(rx, peer);
+ rxrpc_assess_MTU_size(local, peer);
peer->mtu = peer->if_mtu;
peer->rtt_last_req = ktime_get_real();
@@ -272,8 +272,7 @@ static void rxrpc_init_peer(struct rxrpc_sock *rx, struct rxrpc_peer *peer,
/*
* Set up a new peer.
*/
-static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_sock *rx,
- struct rxrpc_local *local,
+static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local,
struct sockaddr_rxrpc *srx,
unsigned long hash_key,
gfp_t gfp)
@@ -285,7 +284,7 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_sock *rx,
peer = rxrpc_alloc_peer(local, gfp, rxrpc_peer_new_client);
if (peer) {
memcpy(&peer->srx, srx, sizeof(*srx));
- rxrpc_init_peer(rx, peer, hash_key);
+ rxrpc_init_peer(local, peer, hash_key);
}
_leave(" = %p", peer);
@@ -304,14 +303,13 @@ static void rxrpc_free_peer(struct rxrpc_peer *peer)
* since we've already done a search in the list from the non-reentrant context
* (the data_ready handler) that is the only place we can add new peers.
*/
-void rxrpc_new_incoming_peer(struct rxrpc_sock *rx, struct rxrpc_local *local,
- struct rxrpc_peer *peer)
+void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer)
{
struct rxrpc_net *rxnet = local->rxnet;
unsigned long hash_key;
hash_key = rxrpc_peer_hash_key(local, &peer->srx);
- rxrpc_init_peer(rx, peer, hash_key);
+ rxrpc_init_peer(local, peer, hash_key);
spin_lock(&rxnet->peer_hash_lock);
hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key);
@@ -322,8 +320,7 @@ void rxrpc_new_incoming_peer(struct rxrpc_sock *rx, struct rxrpc_local *local,
/*
* obtain a remote transport endpoint for the specified address
*/
-struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
- struct rxrpc_local *local,
+struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *local,
struct sockaddr_rxrpc *srx, gfp_t gfp)
{
struct rxrpc_peer *peer, *candidate;
@@ -343,7 +340,7 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
/* The peer is not yet present in hash - create a candidate
* for a new record and then redo the search.
*/
- candidate = rxrpc_create_peer(rx, local, srx, hash_key, gfp);
+ candidate = rxrpc_create_peer(local, srx, hash_key, gfp);
if (!candidate) {
_leave(" = NULL [nomem]");
return NULL;
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