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gerrit-public.fairphone.software / kernel / msm-4.9 / 2ba68002a74fb167b68844077d36e5ccfc87f323 / . / fs / nfs / Kconfig
blob: 66b0f4cb520f7e212678d17d2a2f3ab471401954 [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
Bryan Schumaker2ba68002012-05-10 16:47:19 -0400[diff] [blame^]32config NFS_V2
33 bool "NFS client support for NFS version 2"
34 depends on NFS_FS
35 default y
36 help
37 This option enables support for version 2 of the NFS protocol
38 (RFC 1094) in the kernel's NFS client.
39
40 If unsure, say Y.
41
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]42config NFS_V3
43 bool "NFS client support for NFS version 3"
44 depends on NFS_FS
45 help
46 This option enables support for version 3 of the NFS protocol
47 (RFC 1813) in the kernel's NFS client.
48
49 If unsure, say Y.
50
51config NFS_V3_ACL
52 bool "NFS client support for the NFSv3 ACL protocol extension"
53 depends on NFS_V3
54 help
55 Some NFS servers support an auxiliary NFSv3 ACL protocol that
56 Sun added to Solaris but never became an official part of the
57 NFS version 3 protocol. This protocol extension allows
58 applications on NFS clients to manipulate POSIX Access Control
59 Lists on files residing on NFS servers. NFS servers enforce
60 ACLs on local files whether this protocol is available or not.
61
62 Choose Y here if your NFS server supports the Solaris NFSv3 ACL
63 protocol extension and you want your NFS client to allow
64 applications to access and modify ACLs on files on the server.
65
66 Most NFS servers don't support the Solaris NFSv3 ACL protocol
67 extension. You can choose N here or specify the "noacl" mount
68 option to prevent your NFS client from trying to use the NFSv3
69 ACL protocol.
70
71 If unsure, say N.
72
73config NFS_V4
Trond Myklebustb3edc2b2010-08-04 14:38:01 -0400[diff] [blame]74 bool "NFS client support for NFS version 4"
75 depends on NFS_FS
Trond Myklebust827e3452010-09-12 19:57:50 -0400[diff] [blame]76 select SUNRPC_GSS
Trond Myklebuste3da8702012-02-08 13:21:38 -0500[diff] [blame]77 select KEYS
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]78 help
79 This option enables support for version 4 of the NFS protocol
80 (RFC 3530) in the kernel's NFS client.
81
82 To mount NFS servers using NFSv4, you also need to install user
83 space programs which can be found in the Linux nfs-utils package,
84 available from http://linux-nfs.org/.
85
Trond Myklebustb3edc2b2010-08-04 14:38:01 -0400[diff] [blame]86 If unsure, say Y.
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]87
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]88config NFS_V4_1
Trond Myklebust3dce9a52010-08-04 14:39:16 -0400[diff] [blame]89 bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
Fred Isaman02c35fc2010-10-20 00:17:59 -0400[diff] [blame]90 depends on NFS_FS && NFS_V4 && EXPERIMENTAL
Trond Myklebust9e00abc2011-07-13 19:20:49 -0400[diff] [blame]91 select SUNRPC_BACKCHANNEL
Fred Isaman02c35fc2010-10-20 00:17:59 -0400[diff] [blame]92 select PNFS_FILE_LAYOUT
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]93 help
94 This option enables support for minor version 1 of the NFSv4 protocol
Peng Tao54a33b192011-08-10 18:29:21 -0400[diff] [blame]95 (RFC 5661) in the kernel's NFS client.
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]96
Trond Myklebust3dce9a52010-08-04 14:39:16 -0400[diff] [blame]97 If unsure, say N.
Ricardo Labiaga1efae382009-04-01 09:21:46 -0400[diff] [blame]98
Fred Isaman02c35fc2010-10-20 00:17:59 -0400[diff] [blame]99config PNFS_FILE_LAYOUT
100 tristate
101
Fred Isaman155e7522011-07-30 20:52:39 -0400[diff] [blame]102config PNFS_BLOCK
Boaz Harrosh8cf1fb2162011-08-11 14:29:25 -0700[diff] [blame]103 tristate
Peng Tao54a33b192011-08-10 18:29:21 -0400[diff] [blame]104 depends on NFS_FS && NFS_V4_1 && BLK_DEV_DM
Boaz Harrosh8cf1fb2162011-08-11 14:29:25 -0700[diff] [blame]105 default m
Fred Isaman155e7522011-07-30 20:52:39 -0400[diff] [blame]106
Benny Halevyc93407d2011-05-22 19:49:06 +0300[diff] [blame]107config PNFS_OBJLAYOUT
Boaz Harrosh8cf1fb2162011-08-11 14:29:25 -0700[diff] [blame]108 tristate
Benny Halevyc93407d2011-05-22 19:49:06 +0300[diff] [blame]109 depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD
Boaz Harrosh8cf1fb2162011-08-11 14:29:25 -0700[diff] [blame]110 default m
Benny Halevyc93407d2011-05-22 19:49:06 +0300[diff] [blame]111
Weston Andros Adamsondb8ac8b2012-02-17 15:20:24 -0500[diff] [blame]112config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
113 string "NFSv4.1 Implementation ID Domain"
114 depends on NFS_V4_1
115 default "kernel.org"
116 help
117 This option defines the domain portion of the implementation ID that
118 may be sent in the NFS exchange_id operation. The value must be in
119 the format of a DNS domain name and should be set to the DNS domain
120 name of the distribution.
121 If the NFS client is unchanged from the upstream kernel, this
122 option should be set to the default "kernel.org".
123
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]124config ROOT_NFS
125 bool "Root file system on NFS"
126 depends on NFS_FS=y && IP_PNP
127 help
128 If you want your system to mount its root file system via NFS,
129 choose Y here. This is common practice for managing systems
130 without local permanent storage. For details, read
J. Bruce Fieldsdc7a0812009-10-27 14:41:35 -0400[diff] [blame]131 <file:Documentation/filesystems/nfs/nfsroot.txt>.
Alexey Dobriyan97afe472009-01-22 11:07:41 +0300[diff] [blame]132
133 Most people say N here.
David Howells3b9ce972009-04-03 16:42:42 +0100[diff] [blame]134
135config NFS_FSCACHE
Christian Kujau49120022010-02-26 17:25:14 +0000[diff] [blame]136 bool "Provide NFS client caching support"
David Howells3b9ce972009-04-03 16:42:42 +0100[diff] [blame]137 depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y
138 help
139 Say Y here if you want NFS data to be cached locally on disc through
140 the general filesystem cache manager
Bryan Schumakerc2e81392010-08-11 09:37:53 +0100[diff] [blame]141
142config NFS_USE_LEGACY_DNS
143 bool "Use the legacy NFS DNS resolver"
144 depends on NFS_V4
145 help
146 The kernel now provides a method for translating a host name into an
147 IP address. Select Y here if you would rather use your own DNS
148 resolver script.
149
150 If unsure, say N
151
152config NFS_USE_KERNEL_DNS
153 bool
154 depends on NFS_V4 && !NFS_USE_LEGACY_DNS
155 select DNS_RESOLVER
156 default y
Trond Myklebuste27d3592012-03-18 14:07:42 -0400[diff] [blame]157
158config NFS_DEBUG
159 bool
160 depends on NFS_FS && SUNRPC_DEBUG
161 select CRC32
162 default y