trivial: Give the right path in Documentation example

[deliverable/linux.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 6a5c5fed66c96e36fcaf03a9f3c8403be132a193..bcffc0e476477d3905bcbb92bee3ba882dd22ee5 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -101,6 +101,66 @@ config LOCALVERSION_AUTO
 
          which is done within the script "scripts/setlocalversion".)
 
+config HAVE_KERNEL_GZIP
+       bool
+
+config HAVE_KERNEL_BZIP2
+       bool
+
+config HAVE_KERNEL_LZMA
+       bool
+
+choice
+       prompt "Kernel compression mode"
+       default KERNEL_GZIP
+       depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA
+       help
+         The linux kernel is a kind of self-extracting executable.
+         Several compression algorithms are available, which differ
+         in efficiency, compression and decompression speed.
+         Compression speed is only relevant when building a kernel.
+         Decompression speed is relevant at each boot.
+
+         If you have any problems with bzip2 or lzma compressed
+         kernels, mail me (Alain Knaff) <alain@knaff.lu>. (An older
+         version of this functionality (bzip2 only), for 2.4, was
+         supplied by Christian Ludwig)
+
+         High compression options are mostly useful for users, who
+         are low on disk space (embedded systems), but for whom ram
+         size matters less.
+
+         If in doubt, select 'gzip'
+
+config KERNEL_GZIP
+       bool "Gzip"
+       depends on HAVE_KERNEL_GZIP
+       help
+         The old and tried gzip compression. Its compression ratio is
+         the poorest among the 3 choices; however its speed (both
+         compression and decompression) is the fastest.
+
+config KERNEL_BZIP2
+       bool "Bzip2"
+       depends on HAVE_KERNEL_BZIP2
+       help
+         Its compression ratio and speed is intermediate.
+         Decompression speed is slowest among the three.  The kernel
+         size is about 10% smaller with bzip2, in comparison to gzip.
+         Bzip2 uses a large amount of memory. For modern kernels you
+         will need at least 8MB RAM or more for booting.
+
+config KERNEL_LZMA
+       bool "LZMA"
+       depends on HAVE_KERNEL_LZMA
+       help
+         The most recent compression algorithm.
+         Its ratio is best, decompression speed is between the other
+         two. Compression is slowest.  The kernel size is about 33%
+         smaller with LZMA in comparison to gzip.
+
+endchoice
+
 config SWAP
        bool "Support for paging of anonymous memory (swap)"
        depends on MMU && BLOCK
@@ -627,7 +687,7 @@ config PID_NS
        depends on NAMESPACES && EXPERIMENTAL
        help
          Support process id namespaces.  This allows having multiple
-         process with the same pid as long as they are in different
+         processes with the same pid as long as they are in different
          pid namespaces.  This is a building block of containers.
 
          Unless you want to work with an experimental feature
@@ -892,7 +952,7 @@ config COMPAT_BRK
          Randomizing heap placement makes heap exploits harder, but it
          also breaks ancient binaries (including anything libc5 based).
          This option changes the bootup default to heap randomization
-         disabled, and can be overriden runtime by setting
+         disabled, and can be overridden at runtime by setting
          /proc/sys/kernel/randomize_va_space to 2.
 
          On non-ancient distros (post-2000 ones) N is usually a safe choice.
@@ -966,7 +1026,6 @@ config SLABINFO
 
 config RT_MUTEXES
        boolean
-       select PLIST
 
 config BASE_SMALL
        int
@@ -1051,7 +1110,7 @@ config INIT_ALL_POSSIBLE
          cpu_possible_map, some of them chose to initialize cpu_possible_map
          with all 1s, and others with all 0s.  When they were centralised,
          it was better to provide this option than to break all the archs
-         and have several arch maintainers persuing me down dark alleys.
+         and have several arch maintainers pursuing me down dark alleys.
 
 config STOP_MACHINE
        bool