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review.evervolv.com / android_kernel_htc_msm8960 / 955a857e062642cd3ebe1dc7bb38c0f85d8f8f17 / . / fs / nfs / Kconfig
blob: 3f69752d6f18b8d12e01d7a3ca87891b3d558427 [file] [log] [blame]
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]1config NFS_FS
2 tristate "NFS client support"
Randy Dunlapdd4dc822009-05-12 13:28:09 -0700[diff] [blame]3 depends on INET && FILE_LOCKING
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]4 select LOCKD
5 select SUNRPC
6 select NFS_ACL_SUPPORT if NFS_V3_ACL
7 help
8 Choose Y here if you want to access files residing on other
9 computers using Sun's Network File System protocol. To compile
10 this file system support as a module, choose M here: the module
11 will be called nfs.
12
13 To mount file systems exported by NFS servers, you also need to
14 install the user space mount.nfs command which can be found in
15 the Linux nfs-utils package, available from http://linux-nfs.org/.
16 Information about using the mount command is available in the
17 mount(8) man page. More detail about the Linux NFS client
18 implementation is available via the nfs(5) man page.
19
20 Below you can choose which versions of the NFS protocol are
21 available in the kernel to mount NFS servers. Support for NFS
22 version 2 (RFC 1094) is always available when NFS_FS is selected.
23
24 To configure a system which mounts its root file system via NFS
25 at boot time, say Y here, select "Kernel level IP
26 autoconfiguration" in the NETWORK menu, and select "Root file
27 system on NFS" below. You cannot compile this file system as a
28 module in this case.
29
30 If unsure, say N.
31
32config NFS_V3
33 bool "NFS client support for NFS version 3"
34 depends on NFS_FS
35 help
36 This option enables support for version 3 of the NFS protocol
37 (RFC 1813) in the kernel's NFS client.
38
39 If unsure, say Y.
40
41config NFS_V3_ACL
42 bool "NFS client support for the NFSv3 ACL protocol extension"
43 depends on NFS_V3
44 help
45 Some NFS servers support an auxiliary NFSv3 ACL protocol that
46 Sun added to Solaris but never became an official part of the
47 NFS version 3 protocol. This protocol extension allows
48 applications on NFS clients to manipulate POSIX Access Control
49 Lists on files residing on NFS servers. NFS servers enforce
50 ACLs on local files whether this protocol is available or not.
51
52 Choose Y here if your NFS server supports the Solaris NFSv3 ACL
53 protocol extension and you want your NFS client to allow
54 applications to access and modify ACLs on files on the server.
55
56 Most NFS servers don't support the Solaris NFSv3 ACL protocol
57 extension. You can choose N here or specify the "noacl" mount
58 option to prevent your NFS client from trying to use the NFSv3
59 ACL protocol.
60
61 If unsure, say N.
62
63config NFS_V4
Trond Myklebustb3edc2b2010-08-04 14:38:01 -0400[diff] [blame]64 bool "NFS client support for NFS version 4"
65 depends on NFS_FS
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]66 help
67 This option enables support for version 4 of the NFS protocol
68 (RFC 3530) in the kernel's NFS client.
69
70 To mount NFS servers using NFSv4, you also need to install user
71 space programs which can be found in the Linux nfs-utils package,
72 available from http://linux-nfs.org/.
73
Trond Myklebustb3edc2b2010-08-04 14:38:01 -0400[diff] [blame]74 If unsure, say Y.
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]75
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]76config NFS_V4_1
Trond Myklebust3dce9a52010-08-04 14:39:16 -0400[diff] [blame]77 bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]78 depends on NFS_V4 && EXPERIMENTAL
79 help
80 This option enables support for minor version 1 of the NFSv4 protocol
81 (draft-ietf-nfsv4-minorversion1) in the kernel's NFS client.
82
Trond Myklebust3dce9a52010-08-04 14:39:16 -0400[diff] [blame]83 If unsure, say N.
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]84
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]85config ROOT_NFS
86 bool "Root file system on NFS"
87 depends on NFS_FS=y && IP_PNP
88 help
89 If you want your system to mount its root file system via NFS,
90 choose Y here. This is common practice for managing systems
91 without local permanent storage. For details, read
J. Bruce Fieldsdc7a0812009-10-27 14:41:35 -0400[diff] [blame]92 <file:Documentation/filesystems/nfs/nfsroot.txt>.
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]93
94 Most people say N here.
David Howells3b9ce972009-04-03 16:42:42 +0100[diff] [blame]95
96config NFS_FSCACHE
Christian Kujau49120022010-02-26 17:25:14 +0000[diff] [blame]97 bool "Provide NFS client caching support"
David Howells3b9ce972009-04-03 16:42:42 +0100[diff] [blame]98 depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y
99 help
100 Say Y here if you want NFS data to be cached locally on disc through
101 the general filesystem cache manager
Bryan Schumakerc2e81392010-08-11 09:37:53 +0100[diff] [blame]102
103config NFS_USE_LEGACY_DNS
104 bool "Use the legacy NFS DNS resolver"
105 depends on NFS_V4
106 help
107 The kernel now provides a method for translating a host name into an
108 IP address. Select Y here if you would rather use your own DNS
109 resolver script.
110
111 If unsure, say N
112
113config NFS_USE_KERNEL_DNS
114 bool
115 depends on NFS_V4 && !NFS_USE_LEGACY_DNS
116 select DNS_RESOLVER
Steve French3f432312010-08-12 18:16:45 +0000[diff] [blame]117 select KEYS
Bryan Schumakerc2e81392010-08-11 09:37:53 +0100[diff] [blame]118 default y
Bryan Schumaker955a8572010-09-29 15:41:49 -0400[diff] [blame^]119
120config NFS_USE_NEW_IDMAPPER
121 bool "Use the new idmapper upcall routine"
122 depends on NFS_V4 && KEYS
123 help
124 Say Y here if you want NFS to use the new idmapper upcall functions.
125 You will need /sbin/request-key (usually provided by the keyutils
126 package). For details, read
127 <file:Documentation/filesystems/nfs/idmapper.txt>.
128
129 If you are unsure, say N.