NFSv4: nfs4_async_handle_error should take a non-const nfs_server

For symmetry with the synchronous handler, and so that we can potentially
handle errors such as NFS4ERR_BADNAME.
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>

fs/nfs/nfs4proc.c

@@ -78,7 +78,7 @@ struct nfs4_opendata;
 static int _nfs4_proc_open(struct nfs4_opendata *data);
 static int _nfs4_recover_proc_open(struct nfs4_opendata *data);
 static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *, long *);
+static int nfs4_async_handle_error(struct rpc_task *, struct nfs_server *, struct nfs4_state *, long *);
 static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);
 static int nfs4_proc_getattr(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, struct nfs4_label *label);
 static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label);
@@ -4982,7 +4982,7 @@ nfs4_set_security_label(struct dentry *dentry, const void *buf, size_t buflen)
 
 
 static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
+nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server,
 			struct nfs4_state *state, long *timeout)
 {
 	struct nfs_client *clp = server->nfs_client;
@@ -5559,7 +5559,7 @@ struct nfs4_unlockdata {
 	struct nfs4_lock_state *lsp;
 	struct nfs_open_context *ctx;
 	struct file_lock fl;
-	const struct nfs_server *server;
+	struct nfs_server *server;
 	unsigned long timestamp;
 };
 

include/linux/nfs_xdr.h

@@ -528,7 +528,7 @@ struct nfs4_delegreturnargs {
 struct nfs4_delegreturnres {
 	struct nfs4_sequence_res	seq_res;
 	struct nfs_fattr * fattr;
-	const struct nfs_server *server;
+	struct nfs_server *server;
 };
 
 /*
@@ -601,7 +601,7 @@ struct nfs_removeargs {
 
 struct nfs_removeres {
 	struct nfs4_sequence_res 	seq_res;
-	const struct nfs_server *server;
+	struct nfs_server *server;
 	struct nfs_fattr	*dir_attr;
 	struct nfs4_change_info	cinfo;
 };
@@ -619,7 +619,7 @@ struct nfs_renameargs {
 
 struct nfs_renameres {
 	struct nfs4_sequence_res	seq_res;
-	const struct nfs_server		*server;
+	struct nfs_server		*server;
 	struct nfs4_change_info		old_cinfo;
 	struct nfs_fattr		*old_fattr;
 	struct nfs4_change_info		new_cinfo;