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* kconfig: update compression algorithm infoRandy Dunlap2012-05-311-5/+5
| | | | | | | | | | | | | | | | 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: Randy Dunlap <rdunlap@xenotime.net> Reported-by: <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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERTDavid Rientjes2011-01-201-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: David Woodhouse <david.woodhouse@intel.com> Signed-off-by: David Rientjes <rientjes@google.com> Cc: Greg KH <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* decompressors: add boot-time XZ supportLasse Collin2011-01-131-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | This implements the API defined in <linux/decompress/generic.h> which is used for kernel, initramfs, and initrd decompression. This patch together with the first patch is enough for XZ-compressed initramfs and initrd; XZ-compressed kernel will need arch-specific changes. The buffering requirements described in decompress_unxz.c are stricter than with gzip, so the relevant changes should be done to the arch-specific code when adding support for XZ-compressed kernel. Similarly, the heap size in arch-specific pre-boot code may need to be increased (30 KiB is enough). The XZ decompressor needs memmove(), memeq() (memcmp() == 0), and memzero() (memset(ptr, 0, size)), which aren't available in all arch-specific pre-boot environments. I'm including simple versions in decompress_unxz.c, but a cleaner solution would naturally be nicer. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alain Knaff <alain@knaff.lu> Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Kconfig: delete duplicate wordStephan Sperber2010-08-231-1/+1
| | | | | | | Deleted a word which apeared twice. Signed-off-by: Stephan Sperber <sperberstephan@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Add LZO compression support for initramfs and old-style initrdAlbin Tonnerre2010-01-111-5/+21
| | | | | | | | | | | | | Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Tested-by: Wu Zhangjin <wuzhangjin@gmail.com> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Russell King <rmk@arm.linux.org.uk> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* bzip2/lzma: quiet Kconfig warning for INITRAMFS_COMPRESSION_NONEH. Peter Anvin2009-03-311-14/+1
| | | | | | | | | | | | Impact: quiet Kconfig warning It appears that Kconfig simply has no way to provide defaults for entries that exist inside a conditionalized choice block. Fortunately, it turns out we don't actually ever use CONFIG_INITRAMFS_COMPRESSION_NONE, so we can just drop it for everything outside the choice block. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* bzip2/lzma: don't ask for compression mode for the default initramfsH. Peter Anvin2009-03-281-10/+22
| | | | | | | | | | | | | Impact: Kconfig noise reduction, documentation The default initramfs is so small that it makes no sense to worry about the additional memory taken by not double-compressing it. Therefore, don't bug the user with it. Also, improve the description of the option, which was downright incorrect. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* bzip2/lzma: consistently capitalize LZMA in KconfigH. Peter Anvin2009-03-281-3/+3
| | | | | | | | | Impact: message formatting Consistently spell LZMA in all capitals, since it (unlike gzip or bzip2) is an acronym. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* bzip2/lzma: clarify the meaning of the CONFIG_RD_ optionsH. Peter Anvin2009-03-281-3/+3
| | | | | | | | | Impact: Kconfig clarification Make it clear that the CONFIG_RD_* options are about what formats are supported, not about what formats are actually being used. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* bzip2/lzma: move CONFIG_RD_* options under CONFIG_EMBEDDEDH. Peter Anvin2009-03-281-8/+8
| | | | | | | | | | | Impact: reduce Kconfig noise Move the options that control possible initramfs/initrd compressions underneath CONFIG_EMBEDDED. The only impact of leaving these options set to y is additional code in the init section of the kernel; there is no reason to burden non-embedded users with these options. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* bzip2/lzma: make internal initramfs compression configurableAlain Knaff2009-02-191-0/+62
| | | | | | | | | | | | | Impact: Avoids silent environment dependency Make builtin initramfs compression an explicit configurable. The previous version would pick a compression based on the binaries which were installed on the system, which could lead to unexpected results. It is now explicitly configured, and not having the appropriate binaries installed on the build host is simply an error. Signed-off-by: Alain Knaff <alain@knaff.lu> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* bzip2/lzma: move initrd/ramfs options out of BLK_DEVH. Peter Anvin2009-01-071-0/+27
| | | | | | | | | | Impact: Partial resolution of build failure Move the initrd/initramfs configuration options from drivers/block/Kconfig to usr/Kconfig, since they do not and should not depend on CONFIG_BLK_DEV. This fixes builds when CONFIG_BLK_DEV=n. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* usr/Kconfig: fix typoAlexander E. Patrakov2007-05-021-1/+1
| | | | | Signed-off-by: Alexander E. Patrakov Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* kconfig: move initramfs options to General SetupSam Ravnborg2005-08-101-0/+46
Move initramfs options from Device Drivers | Block Drivers to General Setup This is a more natural place for this option. Furthermore separate out intramfs options to usr/Kconfig Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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