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Message-ID: <20240509180627.204155-2-axboe@kernel.dk>
Date: Thu, 9 May 2024 12:00:26 -0600
From: Jens Axboe <axboe@...nel.dk>
To: io-uring@...r.kernel.org,
netdev@...r.kernel.org
Cc: kuba@...nel.org,
Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 1/4] net: change proto and proto_ops accept type
Rather than pass in flags, error pointer, and whether this is a kernel
invocation or not, add a struct proto_accept_arg struct as the argument.
This then holds all of these arguments, and prepares accept for being
able to pass back more information.
No functional changes in this patch.
Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
crypto/af_alg.c | 11 ++++++-----
crypto/algif_hash.c | 10 +++++-----
drivers/xen/pvcalls-back.c | 6 +++++-
fs/ocfs2/cluster/tcp.c | 5 ++++-
include/crypto/if_alg.h | 3 ++-
include/linux/net.h | 4 +++-
include/net/inet_common.h | 4 ++--
include/net/inet_connection_sock.h | 2 +-
include/net/sock.h | 12 +++++++++---
net/atm/svc.c | 8 ++++----
net/ax25/af_ax25.c | 6 +++---
net/bluetooth/iso.c | 4 ++--
net/bluetooth/l2cap_sock.c | 4 ++--
net/bluetooth/rfcomm/sock.c | 6 +++---
net/bluetooth/sco.c | 4 ++--
net/core/sock.c | 4 ++--
net/ipv4/af_inet.c | 10 +++++-----
net/ipv4/inet_connection_sock.c | 6 +++---
net/llc/af_llc.c | 7 +++----
net/mptcp/protocol.c | 8 ++++----
net/netrom/af_netrom.c | 6 +++---
net/nfc/llcp_sock.c | 4 ++--
net/phonet/pep.c | 12 ++++++------
net/phonet/socket.c | 7 +++----
net/rds/tcp_listen.c | 6 +++++-
net/rose/af_rose.c | 6 +++---
net/sctp/socket.c | 8 ++++----
net/smc/af_smc.c | 6 +++---
net/socket.c | 13 ++++++++++---
net/tipc/socket.c | 10 ++++------
net/unix/af_unix.c | 10 +++++-----
net/vmw_vsock/af_vsock.c | 6 +++---
net/x25/af_x25.c | 4 ++--
33 files changed, 123 insertions(+), 99 deletions(-)
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 5bc6d0fa7498..18cfead0081d 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -407,7 +407,8 @@ static int alg_setsockopt(struct socket *sock, int level, int optname,
return err;
}
-int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
+int af_alg_accept(struct sock *sk, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct alg_sock *ask = alg_sk(sk);
const struct af_alg_type *type;
@@ -422,7 +423,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
if (!type)
goto unlock;
- sk2 = sk_alloc(sock_net(sk), PF_ALG, GFP_KERNEL, &alg_proto, kern);
+ sk2 = sk_alloc(sock_net(sk), PF_ALG, GFP_KERNEL, &alg_proto, arg->kern);
err = -ENOMEM;
if (!sk2)
goto unlock;
@@ -468,10 +469,10 @@ int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
}
EXPORT_SYMBOL_GPL(af_alg_accept);
-static int alg_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int alg_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
- return af_alg_accept(sock->sk, newsock, kern);
+ return af_alg_accept(sock->sk, newsock, arg);
}
static const struct proto_ops alg_proto_ops = {
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index e24c829d7a01..7c7394d46a23 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -223,8 +223,8 @@ static int hash_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
return err ?: len;
}
-static int hash_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int hash_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk;
struct alg_sock *ask = alg_sk(sk);
@@ -252,7 +252,7 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags,
if (err)
goto out_free_state;
- err = af_alg_accept(ask->parent, newsock, kern);
+ err = af_alg_accept(ask->parent, newsock, arg);
if (err)
goto out_free_state;
@@ -355,7 +355,7 @@ static int hash_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
}
static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
int err;
@@ -363,7 +363,7 @@ static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
if (err)
return err;
- return hash_accept(sock, newsock, flags, kern);
+ return hash_accept(sock, newsock, arg);
}
static struct proto_ops algif_hash_ops_nokey = {
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index d52593466a79..fd7ed65e0197 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -517,6 +517,10 @@ static void __pvcalls_back_accept(struct work_struct *work)
{
struct sockpass_mapping *mappass = container_of(
work, struct sockpass_mapping, register_work);
+ struct proto_accept_arg arg = {
+ .flags = O_NONBLOCK,
+ .kern = true,
+ };
struct sock_mapping *map;
struct pvcalls_ioworker *iow;
struct pvcalls_fedata *fedata;
@@ -548,7 +552,7 @@ static void __pvcalls_back_accept(struct work_struct *work)
sock->type = mappass->sock->type;
sock->ops = mappass->sock->ops;
- ret = inet_accept(mappass->sock, sock, O_NONBLOCK, true);
+ ret = inet_accept(mappass->sock, sock, &arg);
if (ret == -EAGAIN) {
sock_release(sock);
return;
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 960080753d3b..2b8fa3e782fb 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1784,6 +1784,9 @@ static int o2net_accept_one(struct socket *sock, int *more)
struct o2nm_node *node = NULL;
struct o2nm_node *local_node = NULL;
struct o2net_sock_container *sc = NULL;
+ struct proto_accept_arg arg = {
+ .flags = O_NONBLOCK,
+ };
struct o2net_node *nn;
unsigned int nofs_flag;
@@ -1802,7 +1805,7 @@ static int o2net_accept_one(struct socket *sock, int *more)
new_sock->type = sock->type;
new_sock->ops = sock->ops;
- ret = sock->ops->accept(sock, new_sock, O_NONBLOCK, false);
+ ret = sock->ops->accept(sock, new_sock, &arg);
if (ret < 0)
goto out;
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index 78ecaf5db04c..f7b3b93f3a49 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -166,7 +166,8 @@ int af_alg_unregister_type(const struct af_alg_type *type);
int af_alg_release(struct socket *sock);
void af_alg_release_parent(struct sock *sk);
-int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern);
+int af_alg_accept(struct sock *sk, struct socket *newsock,
+ struct proto_accept_arg *arg);
void af_alg_free_sg(struct af_alg_sgl *sgl);
diff --git a/include/linux/net.h b/include/linux/net.h
index 15df6d5f27a7..688320b79fcc 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -153,6 +153,7 @@ struct sockaddr;
struct msghdr;
struct module;
struct sk_buff;
+struct proto_accept_arg;
typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *,
unsigned int, size_t);
typedef int (*skb_read_actor_t)(struct sock *, struct sk_buff *);
@@ -171,7 +172,8 @@ struct proto_ops {
int (*socketpair)(struct socket *sock1,
struct socket *sock2);
int (*accept) (struct socket *sock,
- struct socket *newsock, int flags, bool kern);
+ struct socket *newsock,
+ struct proto_accept_arg *arg);
int (*getname) (struct socket *sock,
struct sockaddr *addr,
int peer);
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index f50a644d87a9..c17a6585d0b0 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -29,8 +29,8 @@ int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
int addr_len, int flags, int is_sendmsg);
int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
int addr_len, int flags);
-int inet_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern);
+int inet_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg);
void __inet_accept(struct socket *sock, struct socket *newsock,
struct sock *newsk);
int inet_send_prepare(struct sock *sk);
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 20e7b0c0b3d1..7d6b1254c92d 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -250,7 +250,7 @@ inet_csk_rto_backoff(const struct inet_connection_sock *icsk,
return (unsigned long)min_t(u64, when, max_when);
}
-struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern);
+struct sock *inet_csk_accept(struct sock *sk, struct proto_accept_arg *arg);
int inet_csk_get_port(struct sock *sk, unsigned short snum);
diff --git a/include/net/sock.h b/include/net/sock.h
index 0450494a1766..217079b3e3e8 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1194,6 +1194,12 @@ static inline void sk_prot_clear_nulls(struct sock *sk, int size)
size - offsetof(struct sock, sk_node.pprev));
}
+struct proto_accept_arg {
+ int flags;
+ int err;
+ bool kern;
+};
+
/* Networking protocol blocks we attach to sockets.
* socket layer -> transport layer interface
*/
@@ -1208,8 +1214,8 @@ struct proto {
int addr_len);
int (*disconnect)(struct sock *sk, int flags);
- struct sock * (*accept)(struct sock *sk, int flags, int *err,
- bool kern);
+ struct sock * (*accept)(struct sock *sk,
+ struct proto_accept_arg *arg);
int (*ioctl)(struct sock *sk, int cmd,
int *karg);
@@ -1804,7 +1810,7 @@ int sock_cmsg_send(struct sock *sk, struct msghdr *msg,
int sock_no_bind(struct socket *, struct sockaddr *, int);
int sock_no_connect(struct socket *, struct sockaddr *, int, int);
int sock_no_socketpair(struct socket *, struct socket *);
-int sock_no_accept(struct socket *, struct socket *, int, bool);
+int sock_no_accept(struct socket *, struct socket *, struct proto_accept_arg *);
int sock_no_getname(struct socket *, struct sockaddr *, int);
int sock_no_ioctl(struct socket *, unsigned int, unsigned long);
int sock_no_listen(struct socket *, int);
diff --git a/net/atm/svc.c b/net/atm/svc.c
index 36a814f1fbd1..f8137ae693b0 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -324,8 +324,8 @@ static int svc_listen(struct socket *sock, int backlog)
return error;
}
-static int svc_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int svc_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk;
struct sk_buff *skb;
@@ -336,7 +336,7 @@ static int svc_accept(struct socket *sock, struct socket *newsock, int flags,
lock_sock(sk);
- error = svc_create(sock_net(sk), newsock, 0, kern);
+ error = svc_create(sock_net(sk), newsock, 0, arg->kern);
if (error)
goto out;
@@ -355,7 +355,7 @@ static int svc_accept(struct socket *sock, struct socket *newsock, int flags,
error = -sk->sk_err;
break;
}
- if (flags & O_NONBLOCK) {
+ if (arg->flags & O_NONBLOCK) {
error = -EAGAIN;
break;
}
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 9169efb2f43a..8077cf2ee448 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1373,8 +1373,8 @@ static int __must_check ax25_connect(struct socket *sock,
return err;
}
-static int ax25_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int ax25_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sk_buff *skb;
struct sock *newsk;
@@ -1409,7 +1409,7 @@ static int ax25_accept(struct socket *sock, struct socket *newsock, int flags,
if (skb)
break;
- if (flags & O_NONBLOCK) {
+ if (arg->flags & O_NONBLOCK) {
err = -EWOULDBLOCK;
break;
}
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index ef0cc80b4c0c..2a075119d65d 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1186,7 +1186,7 @@ static int iso_sock_listen(struct socket *sock, int backlog)
}
static int iso_sock_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
struct sock *sk = sock->sk, *ch;
@@ -1195,7 +1195,7 @@ static int iso_sock_accept(struct socket *sock, struct socket *newsock,
lock_sock(sk);
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
BT_DBG("sk %p timeo %ld", sk, timeo);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5cc83f906c12..125dddc77452 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -327,7 +327,7 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
}
static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
struct sock *sk = sock->sk, *nsk;
@@ -336,7 +336,7 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
lock_sock_nested(sk, L2CAP_NESTING_PARENT);
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
BT_DBG("sk %p timeo %ld", sk, timeo);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 29aa07e9db9d..37d63d768afb 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -468,8 +468,8 @@ static int rfcomm_sock_listen(struct socket *sock, int backlog)
return err;
}
-static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
struct sock *sk = sock->sk, *nsk;
@@ -483,7 +483,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
goto done;
}
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
BT_DBG("sk %p timeo %ld", sk, timeo);
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 5d03c5440b06..09941da7d1fd 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -643,7 +643,7 @@ static int sco_sock_listen(struct socket *sock, int backlog)
}
static int sco_sock_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
struct sock *sk = sock->sk, *ch;
@@ -652,7 +652,7 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock,
lock_sock(sk);
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
BT_DBG("sk %p timeo %ld", sk, timeo);
diff --git a/net/core/sock.c b/net/core/sock.c
index 8d6e638b5426..8629f9aecf91 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3241,8 +3241,8 @@ int sock_no_socketpair(struct socket *sock1, struct socket *sock2)
}
EXPORT_SYMBOL(sock_no_socketpair);
-int sock_no_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+int sock_no_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
return -EOPNOTSUPP;
}
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index a7bad18bc8b5..de3449e16b89 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -771,16 +771,16 @@ void __inet_accept(struct socket *sock, struct socket *newsock, struct sock *new
* Accept a pending connection. The TCP layer now gives BSD semantics.
*/
-int inet_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+int inet_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk1 = sock->sk, *sk2;
- int err = -EINVAL;
/* IPV6_ADDRFORM can change sk->sk_prot under us. */
- sk2 = READ_ONCE(sk1->sk_prot)->accept(sk1, flags, &err, kern);
+ arg->err = -EINVAL;
+ sk2 = READ_ONCE(sk1->sk_prot)->accept(sk1, arg);
if (!sk2)
- return err;
+ return arg->err;
lock_sock(sk2);
__inet_accept(sock, newsock, sk2);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 3b38610958ee..7734d189c66b 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -661,7 +661,7 @@ static int inet_csk_wait_for_connect(struct sock *sk, long timeo)
/*
* This will accept the next outstanding connection.
*/
-struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
+struct sock *inet_csk_accept(struct sock *sk, struct proto_accept_arg *arg)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct request_sock_queue *queue = &icsk->icsk_accept_queue;
@@ -680,7 +680,7 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
/* Find already established connection */
if (reqsk_queue_empty(queue)) {
- long timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ long timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
/* If this is a non blocking socket don't sleep */
error = -EAGAIN;
@@ -745,7 +745,7 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
out_err:
newsk = NULL;
req = NULL;
- *err = error;
+ arg->err = error;
goto out;
}
EXPORT_SYMBOL(inet_csk_accept);
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index fde1140d899e..4eb52add7103 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -688,14 +688,13 @@ static void llc_cmsg_rcv(struct msghdr *msg, struct sk_buff *skb)
* llc_ui_accept - accept a new incoming connection.
* @sock: Socket which connections arrive on.
* @newsock: Socket to move incoming connection to.
- * @flags: User specified operational flags.
- * @kern: If the socket is kernel internal
+ * @arg: User specified arguments
*
* Accept a new incoming connection.
* Returns 0 upon success, negative otherwise.
*/
-static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int llc_ui_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk, *newsk;
struct llc_sock *llc, *newllc;
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index bb8f96f2b86f..7537d63ed007 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3881,7 +3881,7 @@ static int mptcp_listen(struct socket *sock, int backlog)
}
static int mptcp_stream_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
struct mptcp_sock *msk = mptcp_sk(sock->sk);
struct sock *ssk, *newsk;
@@ -3897,7 +3897,7 @@ static int mptcp_stream_accept(struct socket *sock, struct socket *newsock,
return -EINVAL;
pr_debug("ssk=%p, listener=%p", ssk, mptcp_subflow_ctx(ssk));
- newsk = inet_csk_accept(ssk, flags, &err, kern);
+ newsk = inet_csk_accept(ssk, arg);
if (!newsk)
return err;
@@ -3920,7 +3920,7 @@ static int mptcp_stream_accept(struct socket *sock, struct socket *newsock,
newsk = new_mptcp_sock;
MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_MPCAPABLEPASSIVEACK);
- newsk->sk_kern_sock = kern;
+ newsk->sk_kern_sock = arg->kern;
lock_sock(newsk);
__inet_accept(sock, newsock, newsk);
@@ -3949,7 +3949,7 @@ static int mptcp_stream_accept(struct socket *sock, struct socket *newsock,
}
} else {
tcpfallback:
- newsk->sk_kern_sock = kern;
+ newsk->sk_kern_sock = arg->kern;
lock_sock(newsk);
__inet_accept(sock, newsock, newsk);
/* we are being invoked after accepting a non-mp-capable
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 104a80b75477..6ee148f0e6d0 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -772,8 +772,8 @@ static int nr_connect(struct socket *sock, struct sockaddr *uaddr,
return err;
}
-static int nr_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int nr_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sk_buff *skb;
struct sock *newsk;
@@ -805,7 +805,7 @@ static int nr_accept(struct socket *sock, struct socket *newsock, int flags,
if (skb)
break;
- if (flags & O_NONBLOCK) {
+ if (arg->flags & O_NONBLOCK) {
err = -EWOULDBLOCK;
break;
}
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index d5344563e525..57a2f97004e1 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -447,7 +447,7 @@ struct sock *nfc_llcp_accept_dequeue(struct sock *parent,
}
static int llcp_sock_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
DECLARE_WAITQUEUE(wait, current);
struct sock *sk = sock->sk, *new_sk;
@@ -463,7 +463,7 @@ static int llcp_sock_accept(struct socket *sock, struct socket *newsock,
goto error;
}
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
/* Wait for an incoming connection. */
add_wait_queue_exclusive(sk_sleep(sk), &wait);
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 3dd5f52bc1b5..53a858478e22 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -759,8 +759,8 @@ static void pep_sock_close(struct sock *sk, long timeout)
sock_put(sk);
}
-static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
- bool kern)
+static struct sock *pep_sock_accept(struct sock *sk,
+ struct proto_accept_arg *arg)
{
struct pep_sock *pn = pep_sk(sk), *newpn;
struct sock *newsk = NULL;
@@ -772,8 +772,8 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
u8 pipe_handle, enabled, n_sb;
u8 aligned = 0;
- skb = skb_recv_datagram(sk, (flags & O_NONBLOCK) ? MSG_DONTWAIT : 0,
- errp);
+ skb = skb_recv_datagram(sk, (arg->flags & O_NONBLOCK) ? MSG_DONTWAIT : 0,
+ &arg->err);
if (!skb)
return NULL;
@@ -836,7 +836,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
/* Create a new to-be-accepted sock */
newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_KERNEL, sk->sk_prot,
- kern);
+ arg->kern);
if (!newsk) {
pep_reject_conn(sk, skb, PN_PIPE_ERR_OVERLOAD, GFP_KERNEL);
err = -ENOBUFS;
@@ -878,7 +878,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
drop:
release_sock(sk);
kfree_skb(skb);
- *errp = err;
+ arg->err = err;
return newsk;
}
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index 1018340d89a7..5ce0b3ee5def 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -292,18 +292,17 @@ static int pn_socket_connect(struct socket *sock, struct sockaddr *addr,
}
static int pn_socket_accept(struct socket *sock, struct socket *newsock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk;
struct sock *newsk;
- int err;
if (unlikely(sk->sk_state != TCP_LISTEN))
return -EINVAL;
- newsk = sk->sk_prot->accept(sk, flags, &err, kern);
+ newsk = sk->sk_prot->accept(sk, arg);
if (!newsk)
- return err;
+ return arg->err;
lock_sock(newsk);
sock_graft(newsk, newsock);
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 05008ce5c421..d89bd8d0c354 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -105,6 +105,10 @@ int rds_tcp_accept_one(struct socket *sock)
int conn_state;
struct rds_conn_path *cp;
struct in6_addr *my_addr, *peer_addr;
+ struct proto_accept_arg arg = {
+ .flags = O_NONBLOCK,
+ .kern = true,
+ };
#if !IS_ENABLED(CONFIG_IPV6)
struct in6_addr saddr, daddr;
#endif
@@ -119,7 +123,7 @@ int rds_tcp_accept_one(struct socket *sock)
if (ret)
goto out;
- ret = sock->ops->accept(sock, new_sock, O_NONBLOCK, true);
+ ret = sock->ops->accept(sock, new_sock, &arg);
if (ret < 0)
goto out;
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index ef81d019b20f..59050caab65c 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -919,8 +919,8 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le
return err;
}
-static int rose_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int rose_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sk_buff *skb;
struct sock *newsk;
@@ -953,7 +953,7 @@ static int rose_accept(struct socket *sock, struct socket *newsock, int flags,
if (skb)
break;
- if (flags & O_NONBLOCK) {
+ if (arg->flags & O_NONBLOCK) {
err = -EWOULDBLOCK;
break;
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 64196b1dce1d..c009383369b2 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4847,7 +4847,7 @@ static int sctp_disconnect(struct sock *sk, int flags)
* descriptor will be returned from accept() to represent the newly
* formed association.
*/
-static struct sock *sctp_accept(struct sock *sk, int flags, int *err, bool kern)
+static struct sock *sctp_accept(struct sock *sk, struct proto_accept_arg *arg)
{
struct sctp_sock *sp;
struct sctp_endpoint *ep;
@@ -4871,7 +4871,7 @@ static struct sock *sctp_accept(struct sock *sk, int flags, int *err, bool kern)
goto out;
}
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
error = sctp_wait_for_accept(sk, timeo);
if (error)
@@ -4882,7 +4882,7 @@ static struct sock *sctp_accept(struct sock *sk, int flags, int *err, bool kern)
*/
asoc = list_entry(ep->asocs.next, struct sctp_association, asocs);
- newsk = sp->pf->create_accept_sk(sk, asoc, kern);
+ newsk = sp->pf->create_accept_sk(sk, asoc, arg->kern);
if (!newsk) {
error = -ENOMEM;
goto out;
@@ -4899,7 +4899,7 @@ static struct sock *sctp_accept(struct sock *sk, int flags, int *err, bool kern)
out:
release_sock(sk);
- *err = error;
+ arg->err = error;
return newsk;
}
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 9389f0cfa374..e50a286fd0fb 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2689,7 +2689,7 @@ static int smc_listen(struct socket *sock, int backlog)
}
static int smc_accept(struct socket *sock, struct socket *new_sock,
- int flags, bool kern)
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk, *nsk;
DECLARE_WAITQUEUE(wait, current);
@@ -2708,7 +2708,7 @@ static int smc_accept(struct socket *sock, struct socket *new_sock,
}
/* Wait for an incoming connection */
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
add_wait_queue_exclusive(sk_sleep(sk), &wait);
while (!(nsk = smc_accept_dequeue(sk, new_sock))) {
set_current_state(TASK_INTERRUPTIBLE);
@@ -2735,7 +2735,7 @@ static int smc_accept(struct socket *sock, struct socket *new_sock,
if (rc)
goto out;
- if (lsmc->sockopt_defer_accept && !(flags & O_NONBLOCK)) {
+ if (lsmc->sockopt_defer_accept && !(arg->flags & O_NONBLOCK)) {
/* wait till data arrives on the socket */
timeo = msecs_to_jiffies(lsmc->sockopt_defer_accept *
MSEC_PER_SEC);
diff --git a/net/socket.c b/net/socket.c
index 01a71ae10c35..6ff5f21d9633 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1898,6 +1898,9 @@ struct file *do_accept(struct file *file, unsigned file_flags,
struct file *newfile;
int err, len;
struct sockaddr_storage address;
+ struct proto_accept_arg arg = {
+ .flags = file_flags,
+ };
const struct proto_ops *ops;
sock = sock_from_file(file);
@@ -1926,8 +1929,8 @@ struct file *do_accept(struct file *file, unsigned file_flags,
if (err)
goto out_fd;
- err = ops->accept(sock, newsock, sock->file->f_flags | file_flags,
- false);
+ arg.flags |= sock->file->f_flags;
+ err = ops->accept(sock, newsock, &arg);
if (err < 0)
goto out_fd;
@@ -3580,6 +3583,10 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
struct sock *sk = sock->sk;
const struct proto_ops *ops = READ_ONCE(sock->ops);
+ struct proto_accept_arg arg = {
+ .flags = flags,
+ .kern = true,
+ };
int err;
err = sock_create_lite(sk->sk_family, sk->sk_type, sk->sk_protocol,
@@ -3587,7 +3594,7 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
if (err < 0)
goto done;
- err = ops->accept(sock, *newsock, flags, true);
+ err = ops->accept(sock, *newsock, &arg);
if (err < 0) {
sock_release(*newsock);
*newsock = NULL;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 798397b6811e..f9d3b8a5fd2a 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -146,8 +146,6 @@ static void tipc_data_ready(struct sock *sk);
static void tipc_write_space(struct sock *sk);
static void tipc_sock_destruct(struct sock *sk);
static int tipc_release(struct socket *sock);
-static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags,
- bool kern);
static void tipc_sk_timeout(struct timer_list *t);
static int tipc_sk_publish(struct tipc_sock *tsk, struct tipc_uaddr *ua);
static int tipc_sk_withdraw(struct tipc_sock *tsk, struct tipc_uaddr *ua);
@@ -2716,8 +2714,8 @@ static int tipc_wait_for_accept(struct socket *sock, long timeo)
*
* Return: 0 on success, errno otherwise
*/
-static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags,
- bool kern)
+static int tipc_accept(struct socket *sock, struct socket *new_sock,
+ struct proto_accept_arg *arg)
{
struct sock *new_sk, *sk = sock->sk;
struct tipc_sock *new_tsock;
@@ -2733,14 +2731,14 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags,
res = -EINVAL;
goto exit;
}
- timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+ timeo = sock_rcvtimeo(sk, arg->flags & O_NONBLOCK);
res = tipc_wait_for_accept(sock, timeo);
if (res)
goto exit;
buf = skb_peek(&sk->sk_receive_queue);
- res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, kern);
+ res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, arg->kern);
if (res)
goto exit;
security_sk_clone(sock->sk, new_sock->sk);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index dc1651541723..c27d273fbef7 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -755,7 +755,7 @@ static int unix_bind(struct socket *, struct sockaddr *, int);
static int unix_stream_connect(struct socket *, struct sockaddr *,
int addr_len, int flags);
static int unix_socketpair(struct socket *, struct socket *);
-static int unix_accept(struct socket *, struct socket *, int, bool);
+static int unix_accept(struct socket *, struct socket *, struct proto_accept_arg *arg);
static int unix_getname(struct socket *, struct sockaddr *, int);
static __poll_t unix_poll(struct file *, struct socket *, poll_table *);
static __poll_t unix_dgram_poll(struct file *, struct socket *,
@@ -1689,8 +1689,8 @@ static void unix_sock_inherit_flags(const struct socket *old,
set_bit(SOCK_PASSSEC, &new->flags);
}
-static int unix_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int unix_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk;
struct sk_buff *skb;
@@ -1709,8 +1709,8 @@ static int unix_accept(struct socket *sock, struct socket *newsock, int flags,
* so that no locks are necessary.
*/
- skb = skb_recv_datagram(sk, (flags & O_NONBLOCK) ? MSG_DONTWAIT : 0,
- &err);
+ skb = skb_recv_datagram(sk, (arg->flags & O_NONBLOCK) ? MSG_DONTWAIT : 0,
+ &arg->err);
if (!skb) {
/* This means receive shutdown. */
if (err == 0)
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 54ba7316f808..4b040285aa78 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1500,8 +1500,8 @@ static int vsock_connect(struct socket *sock, struct sockaddr *addr,
return err;
}
-static int vsock_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int vsock_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *listener;
int err;
@@ -1528,7 +1528,7 @@ static int vsock_accept(struct socket *sock, struct socket *newsock, int flags,
/* Wait for children sockets to appear; these are the new sockets
* created upon connection establishment.
*/
- timeout = sock_rcvtimeo(listener, flags & O_NONBLOCK);
+ timeout = sock_rcvtimeo(listener, arg->flags & O_NONBLOCK);
prepare_to_wait(sk_sleep(listener), &wait, TASK_INTERRUPTIBLE);
while ((connected = vsock_dequeue_accept(listener)) == NULL &&
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index d18d51412cc0..8dda4178497c 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -871,8 +871,8 @@ static int x25_wait_for_data(struct sock *sk, long timeout)
return rc;
}
-static int x25_accept(struct socket *sock, struct socket *newsock, int flags,
- bool kern)
+static int x25_accept(struct socket *sock, struct socket *newsock,
+ struct proto_accept_arg *arg)
{
struct sock *sk = sock->sk;
struct sock *newsk;
--
2.43.0
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