linux-kernel - [PATCH v2 4/4] SUNRPC: parametrize rpc_uaddr2sockaddr() by network context

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Date:	Fri, 13 Jan 2012 13:09:27 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	Trond.Myklebust@...app.com
Cc:	linux-nfs@...r.kernel.org, xemul@...allels.com, neilb@...e.de,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	jbottomley@...allels.com, bfields@...ldses.org,
	davem@...emloft.net, devel@...nvz.org
Subject: [PATCH v2 4/4] SUNRPC: parametrize rpc_uaddr2sockaddr() by network
 context

Parametrize rpc_uaddr2sockaddr() by network context and thus force it's callers to pass
in network context instead of using hard-coded "init_net".

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>

---
 fs/nfsd/nfs4state.c         |    2 +-
 include/linux/sunrpc/clnt.h |    2 +-
 net/sunrpc/addr.c           |    8 +++++---
 net/sunrpc/rpcb_clnt.c      |    2 +-
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9ca16dc..56ad8ca 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1301,7 +1301,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, struct svc_r
 	else
 		goto out_err;
 
-	conn->cb_addrlen = rpc_uaddr2sockaddr(se->se_callback_addr_val,
+	conn->cb_addrlen = rpc_uaddr2sockaddr(&init_net, se->se_callback_addr_val,
 					    se->se_callback_addr_len,
 					    (struct sockaddr *)&conn->cb_addr,
 					    sizeof(conn->cb_addr));
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 7bd114f..9e754e3 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -166,7 +166,7 @@ size_t		rpc_ntop(const struct sockaddr *, char *, const size_t);
 size_t		rpc_pton(struct net *, const char *, const size_t,
 			 struct sockaddr *, const size_t);
 char *		rpc_sockaddr2uaddr(const struct sockaddr *, gfp_t);
-size_t		rpc_uaddr2sockaddr(const char *, const size_t,
+size_t		rpc_uaddr2sockaddr(struct net *, const char *, const size_t,
 				   struct sockaddr *, const size_t);
 
 static inline unsigned short rpc_get_port(const struct sockaddr *sap)
diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 82b06b7..d11418f 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -297,6 +297,7 @@ char *rpc_sockaddr2uaddr(const struct sockaddr *sap, gfp_t gfp_flags)
 
 /**
  * rpc_uaddr2sockaddr - convert a universal address to a socket address.
+ * @net: applicable network namespace
  * @uaddr: C string containing universal address to convert
  * @uaddr_len: length of universal address string
  * @sap: buffer into which to plant socket address
@@ -308,8 +309,9 @@ char *rpc_sockaddr2uaddr(const struct sockaddr *sap, gfp_t gfp_flags)
  * Returns the size of the socket address if successful; otherwise
  * zero is returned.
  */
-size_t rpc_uaddr2sockaddr(const char *uaddr, const size_t uaddr_len,
-			  struct sockaddr *sap, const size_t salen)
+size_t rpc_uaddr2sockaddr(struct net *net, const char *uaddr,
+			  const size_t uaddr_len, struct sockaddr *sap,
+			  const size_t salen)
 {
 	char *c, buf[RPCBIND_MAXUADDRLEN + sizeof('\0')];
 	unsigned long portlo, porthi;
@@ -341,7 +343,7 @@ size_t rpc_uaddr2sockaddr(const char *uaddr, const size_t uaddr_len,
 	port = (unsigned short)((porthi << 8) | portlo);
 
 	*c = '\0';
-	if (rpc_pton(&init_net, buf, strlen(buf), sap, salen) == 0)
+	if (rpc_pton(net, buf, strlen(buf), sap, salen) == 0)
 		return 0;
 
 	switch (sap->sa_family) {
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 6d6a84f..7c6fac0 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -934,7 +934,7 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
 	dprintk("RPC: %5u RPCB_%s reply: %s\n", task->tk_pid,
 			task->tk_msg.rpc_proc->p_name, (char *)p);
 
-	if (rpc_uaddr2sockaddr((char *)p, len, sap, sizeof(address)) == 0)
+	if (rpc_uaddr2sockaddr(&init_net, (char *)p, len, sap, sizeof(address)) == 0)
 		goto out_fail;
 	rpcb->r_port = rpc_get_port(sap);
 

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