atomic64 on i386 arch

Discussion in 'HOWTO-Related Questions' started by binpackcz, Apr 25, 2013.

  1. binpackcz

    binpackcz New Member

    This could be a basic question.
    I am using an atomic64_t variable for a counter in a kernel module. This compiled fine on x86_64 machines but not on i386, so included the atomic64_32.h header :

    if defined(__i386__)
    #include <asm/atomic64_32.h>

    This is helping to get the module compiled but fails to load the module saying the atomic64_* symbols are not found?
    Unknown symbol atomic64_inc
    Unknown symbol atomic64_set

    What is the correct way to use atomic64_t types in a kernel module?

    I tried looking up the exported kernel symbols and it does not list the atomic64* smbols both on i386 and x86_64 archs
    cat /proc/kallsyms | grep atomic64_inc

    I guess my basic understanding of kernel symbols and loading is poor. Please refer me to any good documentation if any.

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