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-rw-r--r--init/Kconfig17
1 files changed, 16 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index ea1be00..54d3fa5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -112,10 +112,13 @@ config HAVE_KERNEL_XZ
config HAVE_KERNEL_LZO
bool
+config HAVE_KERNEL_LZ4
+ bool
+
choice
prompt "Kernel compression mode"
default KERNEL_GZIP
- depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO
+ depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4
help
The linux kernel is a kind of self-extracting executable.
Several compression algorithms are available, which differ
@@ -182,6 +185,18 @@ config KERNEL_LZO
size is about 10% bigger than gzip; however its speed
(both compression and decompression) is the fastest.
+config KERNEL_LZ4
+ bool "LZ4"
+ depends on HAVE_KERNEL_LZ4
+ help
+ LZ4 is an LZ77-type compressor with a fixed, byte-oriented encoding.
+ A preliminary version of LZ4 de/compression tool is available at
+ <https://code.google.com/p/lz4/>.
+
+ Its compression ratio is worse than LZO. The size of the kernel
+ is about 8% bigger than LZO. But the decompression speed is
+ faster than LZO.
+
endchoice
config DEFAULT_HOSTNAME