Adjust arguments and callers of nfs_get_client() to pass a
"struct sockaddr *" and length instead of "struct sockaddr_in *" to support
non-IPv4 addresses.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
---

 fs/nfs/client.c |   21 +++++++++++----------
 1 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 7b45ed0..f03a742 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -288,21 +288,21 @@ struct nfs_client *nfs_find_client(const struct sockaddr *addr,
  * - creates a new record if one doesn't yet exist
  */
 static struct nfs_client *nfs_get_client(const char *hostname,
-					 const struct sockaddr_in *addr,
+					 const struct sockaddr *addr,
+					 size_t addrlen,
 					 unsigned int nfsversion)
 {
 	struct nfs_client *clp, *new = NULL;
 	int error;
 
-	dprintk("--> nfs_get_client(%s,"NIPQUAD_FMT":%d,%u)\n",
-		hostname ?: "", NIPQUAD(addr->sin_addr),
-		addr->sin_port, nfsversion);
+	dprintk("--> nfs_get_client(%s,v%u)\n",
+		hostname ?: "", nfsversion);
 
 	/* see if the client already exists */
 	do {
 		spin_lock(&nfs_client_lock);
 
-		clp = __nfs_find_client((struct sockaddr *)addr, nfsversion, 1);
+		clp = __nfs_find_client(addr, nfsversion, 1);
 		if (clp)
 			goto found_client;
 		if (new)
@@ -310,9 +310,7 @@ static struct nfs_client *nfs_get_client(const char *hostname,
 
 		spin_unlock(&nfs_client_lock);
 
-		new = nfs_alloc_client(hostname,
-				       (const struct sockaddr *)addr,
-				       sizeof(*addr), nfsversion);
+		new = nfs_alloc_client(hostname, addr, addrlen, nfsversion);
 	} while (new);
 
 	return ERR_PTR(-ENOMEM);
@@ -588,7 +586,9 @@ static int nfs_init_server(struct nfs_server *server,
 
 	/* Allocate or find a client reference we can use */
 	clp = nfs_get_client(data->nfs_server.hostname,
-				&data->nfs_server.address, nfsvers);
+				(struct sockaddr ...
[ message continues ]