Re: [PATCH net-next v4 2/3] net/smc: expose smc proto operations

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在 2024/5/29 5:59, D. Wythe 写道:
From: "D. Wythe" <alibuda@xxxxxxxxxxxxxxxxx>

Externalize smc proto operations (smc_xxx) to allow
access from files other that af_smc.c

s/other that/other than ?

Zhu Yanjun


This is in preparation for the subsequent implementation
of the AF_INET version of SMC.

Signed-off-by: D. Wythe <alibuda@xxxxxxxxxxxxxxxxx>
---
  net/smc/af_smc.c | 60 ++++++++++++++++++++++++++++----------------------------
  net/smc/smc.h    | 33 +++++++++++++++++++++++++++++++
  2 files changed, 63 insertions(+), 30 deletions(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 77a9d58..8e3ce76 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -170,15 +170,15 @@ static bool smc_hs_congested(const struct sock *sk)
  	return false;
  }
-static struct smc_hashinfo smc_v4_hashinfo = {
+struct smc_hashinfo smc_v4_hashinfo = {
  	.lock = __RW_LOCK_UNLOCKED(smc_v4_hashinfo.lock),
  };
-static struct smc_hashinfo smc_v6_hashinfo = {
+struct smc_hashinfo smc_v6_hashinfo = {
  	.lock = __RW_LOCK_UNLOCKED(smc_v6_hashinfo.lock),
  };
-static int smc_hash_sk(struct sock *sk)
+int smc_hash_sk(struct sock *sk)
  {
  	struct smc_hashinfo *h = sk->sk_prot->h.smc_hash;
  	struct hlist_head *head;
@@ -193,7 +193,7 @@ static int smc_hash_sk(struct sock *sk)
  	return 0;
  }
-static void smc_unhash_sk(struct sock *sk)
+void smc_unhash_sk(struct sock *sk)
  {
  	struct smc_hashinfo *h = sk->sk_prot->h.smc_hash;
@@ -207,7 +207,7 @@ static void smc_unhash_sk(struct sock *sk)
   * work which we didn't do because of user hold the sock_lock in the
   * BH context
   */
-static void smc_release_cb(struct sock *sk)
+void smc_release_cb(struct sock *sk)
  {
  	struct smc_sock *smc = smc_sk(sk);
@@ -307,7 +307,7 @@ static int __smc_release(struct smc_sock *smc)
  	return rc;
  }
-static int smc_release(struct socket *sock)
+int smc_release(struct socket *sock)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -401,8 +401,8 @@ static struct sock *smc_sock_alloc(struct net *net, struct socket *sock,
  	return sk;
  }
-static int smc_bind(struct socket *sock, struct sockaddr *uaddr,
-		    int addr_len)
+int smc_bind(struct socket *sock, struct sockaddr *uaddr,
+	     int addr_len)
  {
  	struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
  	struct sock *sk = sock->sk;
@@ -1649,8 +1649,8 @@ static void smc_connect_work(struct work_struct *work)
  	release_sock(&smc->sk);
  }
-static int smc_connect(struct socket *sock, struct sockaddr *addr,
-		       int alen, int flags)
+int smc_connect(struct socket *sock, struct sockaddr *addr,
+		int alen, int flags)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -2631,7 +2631,7 @@ static void smc_clcsock_data_ready(struct sock *listen_clcsock)
  	read_unlock_bh(&listen_clcsock->sk_callback_lock);
  }
-static int smc_listen(struct socket *sock, int backlog)
+int smc_listen(struct socket *sock, int backlog)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -2696,8 +2696,8 @@ static int smc_listen(struct socket *sock, int backlog)
  	return rc;
  }
-static int smc_accept(struct socket *sock, struct socket *new_sock,
-		      struct proto_accept_arg *arg)
+int smc_accept(struct socket *sock, struct socket *new_sock,
+	       struct proto_accept_arg *arg)
  {
  	struct sock *sk = sock->sk, *nsk;
  	DECLARE_WAITQUEUE(wait, current);
@@ -2766,8 +2766,8 @@ static int smc_accept(struct socket *sock, struct socket *new_sock,
  	return rc;
  }
-static int smc_getname(struct socket *sock, struct sockaddr *addr,
-		       int peer)
+int smc_getname(struct socket *sock, struct sockaddr *addr,
+		int peer)
  {
  	struct smc_sock *smc;
@@ -2780,7 +2780,7 @@ static int smc_getname(struct socket *sock, struct sockaddr *addr,
  	return smc->clcsock->ops->getname(smc->clcsock, addr, peer);
  }
-static int smc_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
+int smc_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -2818,8 +2818,8 @@ static int smc_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
  	return rc;
  }
-static int smc_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
-		       int flags)
+int smc_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
+		int flags)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -2868,8 +2868,8 @@ static __poll_t smc_accept_poll(struct sock *parent)
  	return mask;
  }
-static __poll_t smc_poll(struct file *file, struct socket *sock,
-			     poll_table *wait)
+__poll_t smc_poll(struct file *file, struct socket *sock,
+		  poll_table *wait)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -2921,7 +2921,7 @@ static __poll_t smc_poll(struct file *file, struct socket *sock,
  	return mask;
  }
-static int smc_shutdown(struct socket *sock, int how)
+int smc_shutdown(struct socket *sock, int how)
  {
  	struct sock *sk = sock->sk;
  	bool do_shutdown = true;
@@ -3061,8 +3061,8 @@ static int __smc_setsockopt(struct socket *sock, int level, int optname,
  	return rc;
  }
-static int smc_setsockopt(struct socket *sock, int level, int optname,
-			  sockptr_t optval, unsigned int optlen)
+int smc_setsockopt(struct socket *sock, int level, int optname,
+		   sockptr_t optval, unsigned int optlen)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
@@ -3148,8 +3148,8 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
  	return rc;
  }
-static int smc_getsockopt(struct socket *sock, int level, int optname,
-			  char __user *optval, int __user *optlen)
+int smc_getsockopt(struct socket *sock, int level, int optname,
+		   char __user *optval, int __user *optlen)
  {
  	struct smc_sock *smc;
  	int rc;
@@ -3174,8 +3174,8 @@ static int smc_getsockopt(struct socket *sock, int level, int optname,
  	return rc;
  }
-static int smc_ioctl(struct socket *sock, unsigned int cmd,
-		     unsigned long arg)
+int smc_ioctl(struct socket *sock, unsigned int cmd,
+	      unsigned long arg)
  {
  	union smc_host_cursor cons, urg;
  	struct smc_connection *conn;
@@ -3261,9 +3261,9 @@ static int smc_ioctl(struct socket *sock, unsigned int cmd,
   * Note that subsequent recv() calls have to wait till all splice() processing
   * completed.
   */
-static ssize_t smc_splice_read(struct socket *sock, loff_t *ppos,
-			       struct pipe_inode_info *pipe, size_t len,
-			       unsigned int flags)
+ssize_t smc_splice_read(struct socket *sock, loff_t *ppos,
+			struct pipe_inode_info *pipe, size_t len,
+			unsigned int flags)
  {
  	struct sock *sk = sock->sk;
  	struct smc_sock *smc;
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 3edec1e..34b781e 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -34,6 +34,39 @@
  extern struct proto smc_proto;
  extern struct proto smc_proto6;
+extern struct smc_hashinfo smc_v4_hashinfo;
+extern struct smc_hashinfo smc_v6_hashinfo;
+
+int smc_hash_sk(struct sock *sk);
+void smc_unhash_sk(struct sock *sk);
+void smc_release_cb(struct sock *sk);
+
+int smc_release(struct socket *sock);
+int smc_bind(struct socket *sock, struct sockaddr *uaddr,
+	     int addr_len);
+int smc_connect(struct socket *sock, struct sockaddr *addr,
+		int alen, int flags);
+int smc_accept(struct socket *sock, struct socket *new_sock,
+	       struct proto_accept_arg *arg);
+int smc_getname(struct socket *sock, struct sockaddr *addr,
+		int peer);
+__poll_t smc_poll(struct file *file, struct socket *sock,
+		  poll_table *wait);
+int smc_ioctl(struct socket *sock, unsigned int cmd,
+	      unsigned long arg);
+int smc_listen(struct socket *sock, int backlog);
+int smc_shutdown(struct socket *sock, int how);
+int smc_setsockopt(struct socket *sock, int level, int optname,
+		   sockptr_t optval, unsigned int optlen);
+int smc_getsockopt(struct socket *sock, int level, int optname,
+		   char __user *optval, int __user *optlen);
+int smc_sendmsg(struct socket *sock, struct msghdr *msg, size_t len);
+int smc_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
+		int flags);
+ssize_t smc_splice_read(struct socket *sock, loff_t *ppos,
+			struct pipe_inode_info *pipe, size_t len,
+			unsigned int flags);
+
  /* smc sock initialization */
  void smc_sk_init(struct net *net, struct sock *sk, int protocol);
  /* clcsock initialization */





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