If unsure, say N.
config SQUASHFS
- tristate "SquashFS 3.1 - Squashed file system support"
- select ZLIB_INFLATE
- help
- Saying Y here includes support for SquashFS 3.1 (a Compressed Read-Only File
- System). Squashfs is a highly compressed read-only filesystem for Linux.
- It uses zlib compression to compress both files, inodes and directories.
- Inodes in the system are very small and all blocks are packed to minimise
- data overhead. Block sizes greater than 4K are supported up to a maximum of 64K.
- SquashFS 3.1 supports 64 bit filesystems and files (larger than 4GB), full
- uid/gid information, hard links and timestamps.
-
- Squashfs is intended for general read-only filesystem use, for archival
- use (i.e. in cases where a .tar.gz file may be used), and in embedded
- systems where low overhead is needed. Further information and filesystem tools
- are available from http://squashfs.sourceforge.net.
-
- If you want to compile this as a module ( = code which can be
- inserted in and removed from the running kernel whenever you want),
- say M here and read <file:Documentation/modules.txt>. The module
- will be called squashfs. Note that the root file system (the one
- containing the directory /) cannot be compiled as a module.
-
- If unsure, say N.
+ tristate "SquashFS 3.0 - Squashed file system support"
+ select ZLIB_INFLATE
+ help
+ Saying Y here includes support for SquashFS 3.0 (a Compressed Read-Only File
+ System). Squashfs is a highly compressed read-only filesystem for Linux.
+ It uses zlib compression to compress both files, inodes and directories.
+ Inodes in the system are very small and all blocks are packed to minimise
+ data overhead. Block sizes greater than 4K are supported up to a maximum of 64K.
+ SquashFS 3.0 supports 64 bit filesystems and files (larger than 4GB), full
+ uid/gid information, hard links and timestamps.
+
+ Squashfs is intended for general read-only filesystem use, for archival
+ use (i.e. in cases where a .tar.gz file may be used), and in embedded
+ systems where low overhead is needed. Further information and filesystem tools
+ are available from http://squashfs.sourceforge.net.
+
+ If you want to compile this as a module ( = code which can be
+ inserted in and removed from the running kernel whenever you want),
+ say M here and read <file:Documentation/modules.txt>. The module
+ will be called squashfs. Note that the root file system (the one
+ containing the directory /) cannot be compiled as a module.
+
+ If unsure, say N.
config SQUASHFS_EMBEDDED
- bool "Additional options for memory-constrained systems"
- depends on SQUASHFS
- default n
- help
- Saying Y here allows you to specify cache sizes and how Squashfs
- allocates memory. This is only intended for memory constrained
- systems.
+ bool "Additional options for memory-constrained systems"
+ depends on SQUASHFS
+ default n
+ help
+ Saying Y here allows you to specify cache sizes and how Squashfs
+ allocates memory. This is only intended for memory constrained
+ systems.
- If unsure, say N.
+ If unsure, say N.
config SQUASHFS_FRAGMENT_CACHE_SIZE
- int "Number of fragments cached" if SQUASHFS_EMBEDDED
- depends on SQUASHFS
- default "3"
- help
- By default SquashFS caches the last 3 fragments read from
- the filesystem. Increasing this amount may mean SquashFS
- has to re-read fragments less often from disk, at the expense
- of extra system memory. Decreasing this amount will mean
- SquashFS uses less memory at the expense of extra reads from disk.
-
- Note there must be at least one cached fragment. Anything
- much more than three will probably not make much difference.
+ int "Number of fragments cached" if SQUASHFS_EMBEDDED
+ depends on SQUASHFS
+ default "3"
+ help
+ By default SquashFS caches the last 3 fragments read from
+ the filesystem. Increasing this amount may mean SquashFS
+ has to re-read fragments less often from disk, at the expense
+ of extra system memory. Decreasing this amount will mean
+ SquashFS uses less memory at the expense of extra reads from disk.
+
+ Note there must be at least one cached fragment. Anything
+ much more than three will probably not make much difference.
config SQUASHFS_VMALLOC
- bool "Use Vmalloc rather than Kmalloc" if SQUASHFS_EMBEDDED
- depends on SQUASHFS
- default n
- help
- By default SquashFS uses kmalloc to obtain fragment cache memory.
- Kmalloc memory is the standard kernel allocator, but it can fail
- on memory constrained systems. Because of the way Vmalloc works,
- Vmalloc can succeed when kmalloc fails. Specifying this option
- will make SquashFS always use Vmalloc to allocate the
- fragment cache memory.
-
- If unsure, say N.
+ bool "Use Vmalloc rather than Kmalloc" if SQUASHFS_EMBEDDED
+ depends on SQUASHFS
+ default n
+ help
+ By default SquashFS uses kmalloc to obtain fragment cache memory.
+ Kmalloc memory is the standard kernel allocator, but it can fail
+ on memory constrained systems. Because of the way Vmalloc works,
+ Vmalloc can succeed when kmalloc fails. Specifying this option
+ will make SquashFS always use Vmalloc to allocate the
+ fragment cache memory.
+
+ If unsure, say N.
config VXFS_FS
tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
git://git.onelab.eu / linux-2.6.git / blobdiff