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1 | config ROMFS_FS |
2 | tristate "ROM file system support" |
3 | depends on BLOCK || MTD |
4 | ---help--- |
5 | This is a very small read-only file system mainly intended for |
6 | initial ram disks of installation disks, but it could be used for |
7 | other read-only media as well. Read |
8 | <file:Documentation/filesystems/romfs.txt> for details. |
9 | |
10 | To compile this file system support as a module, choose M here: the |
11 | module will be called romfs. Note that the file system of your |
12 | root partition (the one containing the directory /) cannot be a |
13 | module. |
14 | |
15 | If you don't know whether you need it, then you don't need it: |
16 | answer N. |
17 | |
18 | # |
19 | # Select the backing stores to be supported |
20 | # |
21 | choice |
22 | prompt "RomFS backing stores" |
23 | depends on ROMFS_FS |
24 | default ROMFS_BACKED_BY_BLOCK |
25 | help |
26 | Select the backing stores to be supported. |
27 | |
28 | config ROMFS_BACKED_BY_BLOCK |
29 | bool "Block device-backed ROM file system support" |
30 | depends on BLOCK |
31 | help |
32 | This permits ROMFS to use block devices buffered through the page |
33 | cache as the medium from which to retrieve data. It does not allow |
34 | direct mapping of the medium. |
35 | |
36 | If unsure, answer Y. |
37 | |
38 | config ROMFS_BACKED_BY_MTD |
39 | bool "MTD-backed ROM file system support" |
40 | depends on MTD=y || (ROMFS_FS=m && MTD) |
41 | help |
42 | This permits ROMFS to use MTD based devices directly, without the |
43 | intercession of the block layer (which may have been disabled). It |
44 | also allows direct mapping of MTD devices through romfs files under |
45 | NOMMU conditions if the underlying device is directly addressable by |
46 | the CPU. |
47 | |
48 | If unsure, answer Y. |
49 | |
50 | config ROMFS_BACKED_BY_BOTH |
51 | bool "Both the above" |
52 | depends on BLOCK && (MTD=y || (ROMFS_FS=m && MTD)) |
53 | endchoice |
54 | |
55 | |
56 | config ROMFS_ON_BLOCK |
57 | bool |
58 | default y if ROMFS_BACKED_BY_BLOCK || ROMFS_BACKED_BY_BOTH |
59 | |
60 | config ROMFS_ON_MTD |
61 | bool |
62 | default y if ROMFS_BACKED_BY_MTD || ROMFS_BACKED_BY_BOTH |
63 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9