Eric Lee / smarc-fsl-linux-kernel

18 Jul, 2015

1 commit

  • 5a09e6ce9   lib/decompress: set the compressor name to NULL on error ... Browse Code »

    Without this we end up using the previous name of the compressor in the
    loop in unpack_rootfs. For example we get errors like "compression
    method gzip not configured" even when we have CONFIG_DECOMPRESS_GZIP
    enabled.

    Signed-off-by: Aneesh Kumar K.V
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Aneesh Kumar K.V
     

14 Dec, 2014

1 commit

  • a060bfe03   lib/decompress.c: consistency of compress formats for kernel image ... Browse Code »

    Magic number of compress formats for kernel image is defined by two bytes.
    These numbers are written in hexadecimal number, nevertheless magic
    number for only gunzip is written in octal number. The formats should be
    consistent for readability. Therefore, magic numbers for gunzip are also
    defined by hexadecimal number.

    Signed-off-by: Haesung Kim
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Haesung Kim
     

09 Aug, 2014

1 commit

  • d97b07c54   initramfs: support initramfs that is bigger than 2GiB ... Browse Code »

    Now with 64bit bzImage and kexec tools, we support ramdisk that size is
    bigger than 2g, as we could put it above 4G.

    Found compressed initramfs image could not be decompressed properly. It
    turns out that image length is int during decompress detection, and it
    will become < 0 when length is more than 2G. Furthermore, during
    decompressing len as int is used for inbuf count, that has problem too.

    Change len to long, that should be ok as on 32 bit platform long is
    32bits.

    Tested with following compressed initramfs image as root with kexec.
    gzip, bzip2, xz, lzma, lzop, lz4.
    run time for populate_rootfs():
    size name Nehalem-EX Westmere-EX Ivybridge-EX
    9034400256 root_img : 26s 24s 30s
    3561095057 root_img.lz4 : 28s 27s 27s
    3459554629 root_img.lzo : 29s 29s 28s
    3219399480 root_img.gz : 64s 62s 49s
    2251594592 root_img.xz : 262s 260s 183s
    2226366598 root_img.lzma: 386s 376s 277s
    2901482513 root_img.bz2 : 635s 599s

    Signed-off-by: Yinghai Lu
    Cc: "H. Peter Anvin"
    Cc: Ingo Molnar
    Cc: Rashika Kheria
    Cc: Josh Triplett
    Cc: Kyungsik Lee
    Cc: P J P
    Cc: Al Viro
    Cc: Tetsuo Handa
    Cc: "Daniel M. Weeks"
    Cc: Alexandre Courbot
    Cc: Jan Beulich
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yinghai Lu
     

08 Apr, 2014

1 commit

  • 6aa7a29aa   initramfs: debug detected compression method ... Browse Code »

    This can greatly aid in narrowing down the real source of initramfs
    problems such as failures related to the compression of the in-kernel
    initramfs when an external initramfs is in use as well. Existing errors
    are ambiguous as to which initramfs is a problem and why.

    [akpm@linux-foundation.org: use pr_debug()]
    Signed-off-by: Daniel M. Weeks
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Daniel M. Weeks
     

10 Jul, 2013

1 commit

  • e76e1fdfa   lib: add support for LZ4-compressed kernel ... Browse Code »

    Add support for extracting LZ4-compressed kernel images, as well as
    LZ4-compressed ramdisk images in the kernel boot process.

    Signed-off-by: Kyungsik Lee
    Cc: "H. Peter Anvin"
    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Cc: Russell King
    Cc: Borislav Petkov
    Cc: Florian Fainelli
    Cc: Yann Collet
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kyungsik Lee
     

01 May, 2013

1 commit

06 Oct, 2012

1 commit

  • 33e2a4227   lib/decompress.c add __init to decompress_method and data ... Browse Code »

    Fix the warning:

    WARNING: vmlinux.o(.text+0x14cfd8): Section mismatch in reference from the variable compressed_formats to the function .init.text:gunzip()
    The function compressed_formats() references
    the function __init gunzip().
    etc..

    Within decompress.c, compressed_formats[] needs 'a __initdata annotation',
    because some of it's data members refer to functions which will be
    unloaded after init.

    Consequently, its user decompress_method() will get the __init prefix.

    Signed-off-by: Hein Tibosch
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Hein Tibosch
     

14 Jan, 2011

1 commit

  • 3ebe12439   decompressors: add boot-time XZ support ... Browse Code »

    This implements the API defined in 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
    Cc: "H. Peter Anvin"
    Cc: Alain Knaff
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lasse Collin
     

12 Jan, 2010

1 commit

20 Feb, 2009

1 commit

13 Jan, 2009

1 commit

09 Jan, 2009

1 commit