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NFS: Initialize the NFS v4 client from init_nfs_v4()
And split these functions out of the generic client into a v4 specific file. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker
Trond Myklebust
parent
a38a9eac75
commit
428360d77c
@ -15,7 +15,7 @@ nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
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nfs-$(CONFIG_NFS_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
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nfs4super.o nfs4file.o delegation.o idmap.o \
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callback.o callback_xdr.o callback_proc.o \
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nfs4namespace.o nfs4getroot.o
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nfs4namespace.o nfs4getroot.o nfs4client.o
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nfs-$(CONFIG_NFS_V4_1) += pnfs.o pnfs_dev.o
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ifeq ($(CONFIG_SYSCTL), y)
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133
fs/nfs/client.c
133
fs/nfs/client.c
@ -662,7 +662,7 @@ static void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
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/*
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* Create an RPC client handle
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*/
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static int nfs_create_rpc_client(struct nfs_client *clp,
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int nfs_create_rpc_client(struct nfs_client *clp,
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const struct rpc_timeout *timeparms,
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rpc_authflavor_t flavor)
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{
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@ -1304,137 +1304,6 @@ nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr,
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}
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#endif /* CONFIG_NFS_V4_1 */
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/*
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* Initialize the NFS4 callback service
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*/
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static int nfs4_init_callback(struct nfs_client *clp)
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{
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int error;
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if (clp->rpc_ops->version == 4) {
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struct rpc_xprt *xprt;
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xprt = rcu_dereference_raw(clp->cl_rpcclient->cl_xprt);
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if (nfs4_has_session(clp)) {
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error = xprt_setup_backchannel(xprt,
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NFS41_BC_MIN_CALLBACKS);
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if (error < 0)
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return error;
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}
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error = nfs_callback_up(clp->cl_mvops->minor_version, xprt);
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if (error < 0) {
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dprintk("%s: failed to start callback. Error = %d\n",
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__func__, error);
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return error;
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}
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__set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);
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}
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return 0;
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}
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/*
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* Initialize the minor version specific parts of an NFS4 client record
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*/
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static int nfs4_init_client_minor_version(struct nfs_client *clp)
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{
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#if defined(CONFIG_NFS_V4_1)
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if (clp->cl_mvops->minor_version) {
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struct nfs4_session *session = NULL;
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/*
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* Create the session and mark it expired.
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* When a SEQUENCE operation encounters the expired session
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* it will do session recovery to initialize it.
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*/
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session = nfs4_alloc_session(clp);
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if (!session)
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return -ENOMEM;
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clp->cl_session = session;
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/*
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* The create session reply races with the server back
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* channel probe. Mark the client NFS_CS_SESSION_INITING
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* so that the client back channel can find the
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* nfs_client struct
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*/
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nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING);
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}
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#endif /* CONFIG_NFS_V4_1 */
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return nfs4_init_callback(clp);
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}
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/**
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* nfs4_init_client - Initialise an NFS4 client record
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*
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* @clp: nfs_client to initialise
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* @timeparms: timeout parameters for underlying RPC transport
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* @ip_addr: callback IP address in presentation format
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* @authflavor: authentication flavor for underlying RPC transport
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*
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* Returns pointer to an NFS client, or an ERR_PTR value.
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*/
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struct nfs_client *nfs4_init_client(struct nfs_client *clp,
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const struct rpc_timeout *timeparms,
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const char *ip_addr,
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rpc_authflavor_t authflavour)
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{
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char buf[INET6_ADDRSTRLEN + 1];
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int error;
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if (clp->cl_cons_state == NFS_CS_READY) {
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/* the client is initialised already */
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dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);
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return clp;
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}
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/* Check NFS protocol revision and initialize RPC op vector */
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clp->rpc_ops = &nfs_v4_clientops;
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__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
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error = nfs_create_rpc_client(clp, timeparms, authflavour);
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if (error < 0)
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goto error;
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/* If no clientaddr= option was specified, find a usable cb address */
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if (ip_addr == NULL) {
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struct sockaddr_storage cb_addr;
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struct sockaddr *sap = (struct sockaddr *)&cb_addr;
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error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
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if (error < 0)
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goto error;
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error = rpc_ntop(sap, buf, sizeof(buf));
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if (error < 0)
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goto error;
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ip_addr = (const char *)buf;
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}
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strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
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error = nfs_idmap_new(clp);
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if (error < 0) {
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dprintk("%s: failed to create idmapper. Error = %d\n",
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__func__, error);
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goto error;
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}
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__set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
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error = nfs4_init_client_minor_version(clp);
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if (error < 0)
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goto error;
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if (!nfs4_has_session(clp))
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nfs_mark_client_ready(clp, NFS_CS_READY);
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return clp;
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error:
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nfs_mark_client_ready(clp, error);
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nfs_put_client(clp);
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dprintk("<-- nfs4_init_client() = xerror %d\n", error);
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return ERR_PTR(error);
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}
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/*
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* Set up an NFS4 client
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*/
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@ -149,6 +149,7 @@ extern void nfs_umount(const struct nfs_mount_request *info);
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extern const struct rpc_program nfs_program;
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extern void nfs_clients_init(struct net *net);
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extern struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *);
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int nfs_create_rpc_client(struct nfs_client *, const struct rpc_timeout *, rpc_authflavor_t);
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extern void nfs_cleanup_cb_ident_idr(struct net *);
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extern void nfs_put_client(struct nfs_client *);
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144
fs/nfs/nfs4client.c
Normal file
144
fs/nfs/nfs4client.c
Normal file
@ -0,0 +1,144 @@
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/*
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* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#include <linux/nfs_fs.h>
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#include <linux/nfs_idmap.h>
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#include <linux/sunrpc/auth.h>
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#include <linux/sunrpc/xprt.h>
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#include <linux/sunrpc/bc_xprt.h>
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#include "internal.h"
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#include "callback.h"
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#define NFSDBG_FACILITY NFSDBG_CLIENT
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/*
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* Initialize the NFS4 callback service
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*/
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static int nfs4_init_callback(struct nfs_client *clp)
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{
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int error;
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if (clp->rpc_ops->version == 4) {
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struct rpc_xprt *xprt;
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xprt = rcu_dereference_raw(clp->cl_rpcclient->cl_xprt);
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if (nfs4_has_session(clp)) {
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error = xprt_setup_backchannel(xprt,
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NFS41_BC_MIN_CALLBACKS);
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if (error < 0)
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return error;
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}
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error = nfs_callback_up(clp->cl_mvops->minor_version, xprt);
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if (error < 0) {
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dprintk("%s: failed to start callback. Error = %d\n",
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__func__, error);
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return error;
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}
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__set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);
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}
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return 0;
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}
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/*
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* Initialize the minor version specific parts of an NFS4 client record
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*/
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static int nfs4_init_client_minor_version(struct nfs_client *clp)
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{
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#if defined(CONFIG_NFS_V4_1)
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if (clp->cl_mvops->minor_version) {
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struct nfs4_session *session = NULL;
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/*
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* Create the session and mark it expired.
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* When a SEQUENCE operation encounters the expired session
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* it will do session recovery to initialize it.
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*/
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session = nfs4_alloc_session(clp);
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if (!session)
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return -ENOMEM;
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clp->cl_session = session;
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/*
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* The create session reply races with the server back
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* channel probe. Mark the client NFS_CS_SESSION_INITING
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* so that the client back channel can find the
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* nfs_client struct
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*/
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nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING);
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}
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#endif /* CONFIG_NFS_V4_1 */
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return nfs4_init_callback(clp);
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}
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/**
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* nfs4_init_client - Initialise an NFS4 client record
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*
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* @clp: nfs_client to initialise
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* @timeparms: timeout parameters for underlying RPC transport
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* @ip_addr: callback IP address in presentation format
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* @authflavor: authentication flavor for underlying RPC transport
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*
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* Returns pointer to an NFS client, or an ERR_PTR value.
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*/
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struct nfs_client *nfs4_init_client(struct nfs_client *clp,
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const struct rpc_timeout *timeparms,
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const char *ip_addr,
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rpc_authflavor_t authflavour)
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{
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char buf[INET6_ADDRSTRLEN + 1];
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int error;
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if (clp->cl_cons_state == NFS_CS_READY) {
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/* the client is initialised already */
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dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);
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return clp;
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}
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/* Check NFS protocol revision and initialize RPC op vector */
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clp->rpc_ops = &nfs_v4_clientops;
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__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
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error = nfs_create_rpc_client(clp, timeparms, authflavour);
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if (error < 0)
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goto error;
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/* If no clientaddr= option was specified, find a usable cb address */
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if (ip_addr == NULL) {
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struct sockaddr_storage cb_addr;
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struct sockaddr *sap = (struct sockaddr *)&cb_addr;
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error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
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if (error < 0)
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goto error;
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error = rpc_ntop(sap, buf, sizeof(buf));
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if (error < 0)
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goto error;
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ip_addr = (const char *)buf;
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}
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strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
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error = nfs_idmap_new(clp);
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if (error < 0) {
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dprintk("%s: failed to create idmapper. Error = %d\n",
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__func__, error);
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goto error;
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}
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__set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
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error = nfs4_init_client_minor_version(clp);
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if (error < 0)
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goto error;
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if (!nfs4_has_session(clp))
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nfs_mark_client_ready(clp, NFS_CS_READY);
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return clp;
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error:
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nfs_mark_client_ready(clp, error);
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nfs_put_client(clp);
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dprintk("<-- nfs4_init_client() = xerror %d\n", error);
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return ERR_PTR(error);
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}
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