Commit 0a4dd35c authored by Randy Dunlap's avatar Randy Dunlap Committed by Linus Torvalds
Browse files

kconfig: update compression algorithm info 



There have been new compression algorithms added without updating nearby
relevant descriptive text that refers to (a) the number of compression
algorithms and (b) the most recent one.  Fix these inconsistencies.

Signed-off-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Reported-by: default avatar <qasdfgtyuiop@gmail.com>
Cc: Lasse Collin <lasse.collin@tukaani.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Alain Knaff <alain@knaff.lu>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b32dfe37

init/Kconfig

+5 −6
Original line number Diff line number Diff line
@@ -167,7 +167,7 @@ config KERNEL_BZIP2 
	depends on HAVE_KERNEL_BZIP2

	help

	  Its compression ratio and speed is intermediate.

	  Decompression speed is slowest among the three.  The kernel

	  Decompression speed is slowest among the choices.  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.
@@ -176,10 +176,9 @@ 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.

	  This compression algorithm's ratio is best.  Decompression speed

	  is between gzip and bzip2.  Compression is slowest.

	  The kernel size is about 33% smaller with LZMA in comparison to gzip.



config KERNEL_XZ

	bool "XZ"
@@ -200,7 +199,7 @@ config KERNEL_LZO 
	bool "LZO"

	depends on HAVE_KERNEL_LZO

	help

	  Its compression ratio is the poorest among the 4. The kernel

	  Its compression ratio is the poorest among the choices. The kernel

	  size is about 10% bigger than gzip; however its speed

	  (both compression and decompression) is the fastest.

usr/Kconfig

+5 −5
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ config INITRAMFS_COMPRESSION_BZIP2 
	depends on RD_BZIP2

	help

	  Its compression ratio and speed is intermediate.

	  Decompression speed is slowest among the four.  The initramfs

	  Decompression speed is slowest among the choices.  The initramfs

	  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.
@@ -143,9 +143,9 @@ config INITRAMFS_COMPRESSION_LZMA 
	bool "LZMA"

	depends on RD_LZMA

	help

	  The most recent compression algorithm.

	  Its ratio is best, decompression speed is between the other

	  three. Compression is slowest. The initramfs size is about 33%

	  This algorithm's compression ratio is best.

	  Decompression speed is between the other choices.

	  Compression is slowest. The initramfs size is about 33%

	  smaller with LZMA in comparison to gzip.



config INITRAMFS_COMPRESSION_XZ
@@ -161,7 +161,7 @@ config INITRAMFS_COMPRESSION_LZO 
	bool "LZO"

	depends on RD_LZO

	help

	  Its compression ratio is the poorest among the four. The kernel

	  Its compression ratio is the poorest among the choices. The kernel

	  size is about 10% bigger than gzip; however its speed

	  (both compression and decompression) is the fastest.

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