NFS: Additional refactoring for fs_context conversion

Split out from commit "NFS: Add fs_context support."

This patch adds additional refactoring for the conversion of NFS to use
fs_context, namely:

 (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context.
     nfs_clone_mount has had several fields removed, and nfs_mount_info
     has been removed altogether.
 (*) Various functions now take an fs_context as an argument instead
     of nfs_mount_info, nfs_fs_context, etc.

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

1 files changed, 32 insertions, 30 deletions

diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 2216d166768b..0cd767e5c977 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1055,9 +1055,9 @@ out:
 /*
  * Create a version 4 volume record
  */
-static int nfs4_init_server(struct nfs_server *server,
-			    struct nfs_fs_context *ctx)
+static int nfs4_init_server(struct nfs_server *server, struct fs_context *fc)
 {
+	struct nfs_fs_context *ctx = nfs_fc2context(fc);
 	struct rpc_timeout timeparms;
 	int error;
 
@@ -1079,15 +1079,15 @@ static int nfs4_init_server(struct nfs_server *server,
 
 	/* Get a client record */
 	error = nfs4_set_client(server,
-			ctx->nfs_server.hostname,
-			(const struct sockaddr *)&ctx->nfs_server.address,
-			ctx->nfs_server.addrlen,
-			ctx->client_address,
-			ctx->nfs_server.protocol,
-			&timeparms,
-			ctx->minorversion,
-			ctx->nfs_server.nconnect,
-			ctx->net);
+				ctx->nfs_server.hostname,
+				&ctx->nfs_server.address,
+				ctx->nfs_server.addrlen,
+				ctx->client_address,
+				ctx->nfs_server.protocol,
+				&timeparms,
+				ctx->minorversion,
+				ctx->nfs_server.nconnect,
+				fc->net_ns);
 	if (error < 0)
 		return error;
 
@@ -1110,10 +1110,9 @@ static int nfs4_init_server(struct nfs_server *server,
  * Create a version 4 volume record
  * - keyed on server and FSID
  */
-/*struct nfs_server *nfs4_create_server(const struct nfs_fs_context *data,
-				      struct nfs_fh *mntfh)*/
-struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info)
+struct nfs_server *nfs4_create_server(struct fs_context *fc)
 {
+	struct nfs_fs_context *ctx = nfs_fc2context(fc);
 	struct nfs_server *server;
 	bool auth_probe;
 	int error;
@@ -1124,14 +1123,14 @@ struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info)
 
 	server->cred = get_cred(current_cred());
 
-	auth_probe = mount_info->ctx->auth_info.flavor_len < 1;
+	auth_probe = ctx->auth_info.flavor_len < 1;
 
 	/* set up the general RPC client */
-	error = nfs4_init_server(server, mount_info->ctx);
+	error = nfs4_init_server(server, fc);
 	if (error < 0)
 		goto error;
 
-	error = nfs4_server_common_setup(server, mount_info->mntfh, auth_probe);
+	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);
 	if (error < 0)
 		goto error;
 
@@ -1145,9 +1144,9 @@ error:
 /*
  * Create an NFS4 referral server record
  */
-struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
-					       struct nfs_fh *mntfh)
+struct nfs_server *nfs4_create_referral_server(struct fs_context *fc)
 {
+	struct nfs_fs_context *ctx = nfs_fc2context(fc);
 	struct nfs_client *parent_client;
 	struct nfs_server *server, *parent_server;
 	bool auth_probe;
@@ -1157,7 +1156,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	parent_server = NFS_SB(data->sb);
+	parent_server = NFS_SB(ctx->clone_data.sb);
 	parent_client = parent_server->nfs_client;
 
 	server->cred = get_cred(parent_server->cred);
@@ -1167,10 +1166,11 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 
 	/* Get a client representation */
 #if IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA)
-	rpc_set_port(data->addr, NFS_RDMA_PORT);
-	error = nfs4_set_client(server, data->hostname,
-				data->addr,
-				data->addrlen,
+	rpc_set_port(&ctx->nfs_server.address, NFS_RDMA_PORT);
+	error = nfs4_set_client(server,
+				ctx->nfs_server.hostname,
+				&ctx->nfs_server.address,
+				ctx->nfs_server.addrlen,
 				parent_client->cl_ipaddr,
 				XPRT_TRANSPORT_RDMA,
 				parent_server->client->cl_timeout,
@@ -1181,10 +1181,11 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 		goto init_server;
 #endif	/* IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA) */
 
-	rpc_set_port(data->addr, NFS_PORT);
-	error = nfs4_set_client(server, data->hostname,
-				data->addr,
-				data->addrlen,
+	rpc_set_port(&ctx->nfs_server.address, NFS_PORT);
+	error = nfs4_set_client(server,
+				ctx->nfs_server.hostname,
+				&ctx->nfs_server.address,
+				ctx->nfs_server.addrlen,
 				parent_client->cl_ipaddr,
 				XPRT_TRANSPORT_TCP,
 				parent_server->client->cl_timeout,
@@ -1197,13 +1198,14 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 #if IS_ENABLED(CONFIG_SUNRPC_XPRT_RDMA)
 init_server:
 #endif
-	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout, data->authflavor);
+	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout,
+					  ctx->selected_flavor);
 	if (error < 0)
 		goto error;
 
 	auth_probe = parent_server->auth_info.flavor_len < 1;
 
-	error = nfs4_server_common_setup(server, mntfh, auth_probe);
+	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);
 	if (error < 0)
 		goto error;