• Geliang Tang's avatar
    pstore: Use crypto compress API · cb3bee03
    Geliang Tang authored
    In the pstore compression part, we use zlib/lzo/lz4/lz4hc/842
    compression algorithm API to implement pstore compression backends. But
    there are many repeat codes in these implementations. This patch uses
    crypto compress API to simplify these codes.
    
    1) rewrite allocate_buf_for_compression, free_buf_for_compression,
    pstore_compress, pstore_decompress functions using crypto compress API.
    2) drop compress, decompress, allocate, free functions in pstore_zbackend,
    and add zbufsize function to get each different compress buffer size.
    3) use late_initcall to call ramoops_init later, to make sure the crypto
    subsystem has already initialized.
    4) use 'unsigned int' type instead of 'size_t' in pstore_compress,
    pstore_decompress functions' length arguments.
    5) rename 'zlib' to 'deflate' to follow the crypto API's name convention.
    Signed-off-by: default avatarGeliang Tang <geliangtang@gmail.com>
    [kees: tweaked error messages on allocation failures and Kconfig help]
    Signed-off-by: default avatarKees Cook <keescook@chromium.org>
    cb3bee03
Kconfig 3.96 KB