NFS: Change cb_recallargs to pass "struct sockaddr *" instead of sockaddr_in

Change the addr field in the cb_recallargs struct to a "struct sockaddr *"
to support non-IPv4 addresses.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index ec0ffd9..bb25d21 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -53,7 +53,7 @@
 };
 
 struct cb_recallargs {
-	struct sockaddr_in *addr;
+	struct sockaddr *addr;
 	struct nfs_fh fh;
 	nfs4_stateid stateid;
 	uint32_t truncate;
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 32f0df0..fa9586d 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -68,7 +68,7 @@
 	__be32 res;
 	
 	res = htonl(NFS4ERR_BADHANDLE);
-	clp = nfs_find_client(args->addr, 4);
+	clp = nfs_find_client((struct sockaddr_in *)args->addr, 4);
 	if (clp == NULL)
 		goto out;
 
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 3eda1bc..c63eb72 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -188,7 +188,7 @@
 	__be32 *p;
 	__be32 status;
 
-	args->addr = svc_addr_in(rqstp);
+	args->addr = svc_addr(rqstp);
 	status = decode_stateid(xdr, &args->stateid);
 	if (unlikely(status != 0))
 		goto out;