Eric Lee / smarc-fsl-linux-kernel

24 Sep, 2009

1 commit

08 Aug, 2009

2 commits

  • 9e5cf0ca2   lib/decompress_*: only include <linux/slab.h> if STATIC is not defined ... Browse Code »

    These includes were added by 079effb6933f34b9b1b67b08bd4fd7fb672d16ef
    ("kmemtrace, kbuild: fix slab.h dependency problem in
    lib/decompress_inflate.c") to fix the build when using kmemtrace. However
    this is not necessary when used to create a compressed kernel, and
    actually creates issues (brings a lot of things unavailable in the
    decompression environment), so don't include it if STATIC is defined.

    Signed-off-by: Albin Tonnerre
    Cc: Sam Ravnborg
    Cc: Russell King
    Cc: Ingo Molnar
    Cc: Thomas Gleixner
    Cc: "H. Peter Anvin"
    Cc: Pekka Enberg
    Cc: Eduard - Gabriel Munteanu
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Albin Tonnerre
     
  • b1af4315d   bzip2/lzma: remove nasty uncompressed size hack in pre-boot environment ... Browse Code »

    decompress_bunzip2 and decompress_unlzma have a nasty hack that subtracts
    4 from the input length if being called in the pre-boot environment.

    This is a nasty hack because it relies on the fact that flush = NULL only
    when called from the pre-boot environment (i.e.
    arch/x86/boot/compressed/misc.c). initramfs.c/do_mounts_rd.c pass in a
    flush buffer (flush != NULL).

    This hack prevents the decompressors from being used with flush = NULL by
    other callers unless knowledge of the hack is propagated to them.

    This patch removes the hack by making decompress (called only from the
    pre-boot environment) a wrapper function that subtracts 4 from the input
    length before calling the decompressor.

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

    Phillip Lougher
     

03 Apr, 2009

1 commit

  • e65a1b7c3   kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_unlzma.c ... Browse Code »

    Impact: cleanup

    lib/decompress_unlzma.c depends on slab.h without including it:

    CC lib/decompress_unlzma.o
    lib/decompress_unlzma.c: In function ‘rc_free’:
    lib/decompress_unlzma.c:122: error: implicit declaration of function ‘kfree’
    lib/decompress_unlzma.c: In function ‘unlzma’:
    lib/decompress_unlzma.c:551: error: implicit declaration of function ‘kmalloc’
    lib/decompress_unlzma.c:551: warning: assignment makes pointer from integer without a cast
    make[1]: *** [lib/decompress_unlzma.o] Error 1
    make: *** [lib/] Error 2

    It gets included implicitly currently - but this will not be the
    case with upcoming kmemtrace changes.

    Signed-off-by: Pekka Enberg
    Cc: Eduard - Gabriel Munteanu
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Pekka Enberg
     

05 Jan, 2009

1 commit

  • bc22c17e1   bzip2/lzma: library support for gzip, bzip2 and lzma decompression ... Browse Code »

    Impact: Replaces inflate.c with a wrapper around zlib_inflate; new library code

    This is the first part of the bzip2/lzma patch

    The bzip patch is based on an idea by Christian Ludwig, includes support for
    compressing the kernel with bzip2 or lzma rather than gzip. Both
    compressors give smaller sizes than gzip. Lzma's decompresses faster
    than bzip2.

    It also supports ramdisks and initramfs' compressed using these two
    compressors.

    The functionality has been successfully used for a couple of years by
    the udpcast project

    This version applies to "tip" kernel 2.6.28

    This part contains:
    - changed inflate.c to accomodate rest of patch
    - implementation of bzip2 compression (not used at this stage yet)
    - implementation of lzma compression (not used at this stage yet)
    - Makefile routines to support bzip2 and lzma kernel compression

    Signed-off-by: Alain Knaff
    Signed-off-by: H. Peter Anvin

    Alain Knaff