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author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
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committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 12:35:57 (GMT) |
commit | 2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch) | |
tree | 726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /fs/nfs/client.c | |
parent | e12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff) | |
parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
download | linux-fsl-qoriq-2ca1a615835d9f4990f42102ab1f2ef434e7e89c.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
Diffstat (limited to 'fs/nfs/client.c')
-rw-r--r-- | fs/nfs/client.c | 95 |
1 files changed, 61 insertions, 34 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 7547600..9b728f3 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -143,7 +143,6 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_ clp->cl_proto = cl_init->proto; #ifdef CONFIG_NFS_V4 - init_rwsem(&clp->cl_sem); INIT_LIST_HEAD(&clp->cl_delegations); spin_lock_init(&clp->cl_lock); INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state); @@ -224,31 +223,54 @@ void nfs_put_client(struct nfs_client *clp) } } -static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1, - const struct sockaddr_in *sa2) +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) +static const struct in6_addr *nfs_map_ipv4_addr(const struct sockaddr *sa, struct in6_addr *addr_mapped) { - return sa1->sin_addr.s_addr == sa2->sin_addr.s_addr; + switch (sa->sa_family) { + default: + return NULL; + case AF_INET6: + return &((const struct sockaddr_in6 *)sa)->sin6_addr; + break; + case AF_INET: + ipv6_addr_set_v4mapped(((const struct sockaddr_in *)sa)->sin_addr.s_addr, + addr_mapped); + return addr_mapped; + } } -static int nfs_sockaddr_match_ipaddr6(const struct sockaddr_in6 *sa1, - const struct sockaddr_in6 *sa2) +static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1, + const struct sockaddr *sa2) +{ + const struct in6_addr *addr1; + const struct in6_addr *addr2; + struct in6_addr addr1_mapped; + struct in6_addr addr2_mapped; + + addr1 = nfs_map_ipv4_addr(sa1, &addr1_mapped); + if (likely(addr1 != NULL)) { + addr2 = nfs_map_ipv4_addr(sa2, &addr2_mapped); + if (likely(addr2 != NULL)) + return ipv6_addr_equal(addr1, addr2); + } + return 0; +} +#else +static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1, + const struct sockaddr_in *sa2) { - return ipv6_addr_equal(&sa1->sin6_addr, &sa2->sin6_addr); + return sa1->sin_addr.s_addr == sa2->sin_addr.s_addr; } static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1, const struct sockaddr *sa2) { - switch (sa1->sa_family) { - case AF_INET: - return nfs_sockaddr_match_ipaddr4((const struct sockaddr_in *)sa1, - (const struct sockaddr_in *)sa2); - case AF_INET6: - return nfs_sockaddr_match_ipaddr6((const struct sockaddr_in6 *)sa1, - (const struct sockaddr_in6 *)sa2); - } - BUG(); + if (unlikely(sa1->sa_family != AF_INET || sa2->sa_family != AF_INET)) + return 0; + return nfs_sockaddr_match_ipaddr4((const struct sockaddr_in *)sa1, + (const struct sockaddr_in *)sa2); } +#endif /* * Find a client by IP address and protocol version @@ -270,8 +292,6 @@ struct nfs_client *nfs_find_client(const struct sockaddr *addr, u32 nfsversion) if (clp->rpc_ops->version != nfsversion) continue; - if (addr->sa_family != clap->sa_family) - continue; /* Match only the IP address, not the port number */ if (!nfs_sockaddr_match_ipaddr(addr, clap)) continue; @@ -305,8 +325,6 @@ struct nfs_client *nfs_find_client_next(struct nfs_client *clp) if (clp->rpc_ops->version != nfsvers) continue; - if (sap->sa_family != clap->sa_family) - continue; /* Match only the IP address, not the port number */ if (!nfs_sockaddr_match_ipaddr(sap, clap)) continue; @@ -470,7 +488,7 @@ static void nfs_init_timeout_values(struct rpc_timeout *to, int proto, static int nfs_create_rpc_client(struct nfs_client *clp, const struct rpc_timeout *timeparms, rpc_authflavor_t flavor, - int flags) + int discrtry, int noresvport) { struct rpc_clnt *clnt = NULL; struct rpc_create_args args = { @@ -482,9 +500,13 @@ static int nfs_create_rpc_client(struct nfs_client *clp, .program = &nfs_program, .version = clp->rpc_ops->version, .authflavor = flavor, - .flags = flags, }; + if (discrtry) + args.flags |= RPC_CLNT_CREATE_DISCRTRY; + if (noresvport) + args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; + if (!IS_ERR(clp->cl_rpcclient)) return 0; @@ -522,6 +544,8 @@ static int nfs_start_lockd(struct nfs_server *server) .protocol = server->flags & NFS_MOUNT_TCP ? IPPROTO_TCP : IPPROTO_UDP, .nfs_version = clp->rpc_ops->version, + .noresvport = server->flags & NFS_MOUNT_NORESVPORT ? + 1 : 0, }; if (nlm_init.nfs_version > 3) @@ -623,7 +647,8 @@ static int nfs_init_client(struct nfs_client *clp, * Create a client RPC handle for doing FSSTAT with UNIX auth only * - RFC 2623, sec 2.3.2 */ - error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX, 0); + error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX, + 0, data->flags & NFS_MOUNT_NORESVPORT); if (error < 0) goto error; nfs_mark_client_ready(clp, NFS_CS_READY); @@ -965,7 +990,8 @@ error: static int nfs4_init_client(struct nfs_client *clp, const struct rpc_timeout *timeparms, const char *ip_addr, - rpc_authflavor_t authflavour) + rpc_authflavor_t authflavour, + int flags) { int error; @@ -979,7 +1005,7 @@ static int nfs4_init_client(struct nfs_client *clp, clp->rpc_ops = &nfs_v4_clientops; error = nfs_create_rpc_client(clp, timeparms, authflavour, - RPC_CLNT_CREATE_DISCRTRY); + 1, flags & NFS_MOUNT_NORESVPORT); if (error < 0) goto error; memcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr)); @@ -1030,7 +1056,8 @@ static int nfs4_set_client(struct nfs_server *server, error = PTR_ERR(clp); goto error; } - error = nfs4_init_client(clp, timeparms, ip_addr, authflavour); + error = nfs4_init_client(clp, timeparms, ip_addr, authflavour, + server->flags); if (error < 0) goto error_put; @@ -1059,6 +1086,10 @@ static int nfs4_init_server(struct nfs_server *server, nfs_init_timeout_values(&timeparms, data->nfs_server.protocol, data->timeo, data->retrans); + /* Initialise the client representation from the mount data */ + server->flags = data->flags; + server->caps |= NFS_CAP_ATOMIC_OPEN; + /* Get a client record */ error = nfs4_set_client(server, data->nfs_server.hostname, @@ -1071,10 +1102,6 @@ static int nfs4_init_server(struct nfs_server *server, if (error < 0) goto error; - /* Initialise the client representation from the mount data */ - server->flags = data->flags; - server->caps |= NFS_CAP_ATOMIC_OPEN; - if (data->rsize) server->rsize = nfs_block_size(data->rsize, NULL); if (data->wsize) @@ -1177,6 +1204,10 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data, parent_server = NFS_SB(data->sb); parent_client = parent_server->nfs_client; + /* Initialise the client representation from the parent server */ + nfs_server_copy_userdata(server, parent_server); + server->caps |= NFS_CAP_ATOMIC_OPEN; + /* Get a client representation. * Note: NFSv4 always uses TCP, */ error = nfs4_set_client(server, data->hostname, @@ -1189,10 +1220,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data, if (error < 0) goto error; - /* Initialise the client representation from the parent server */ - nfs_server_copy_userdata(server, parent_server); - server->caps |= NFS_CAP_ATOMIC_OPEN; - error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout, data->authflavor); if (error < 0) goto error; |