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    SubjectRe: [PATCH 17/19] y2038: use __kernel_timespec in sys_futex
    On Wed, 6 May 2015, Arnd Bergmann wrote:

    > Conversion for sys_futex is particularly easy, we can use the unmodified
    > compat_sys_futex on 32-bit systems to provide compatibility for 32-bit
    > time_t, and change sys_futex to pass a __kernel_timespec, which matches
    > what future libc implementations will use as their struct timespec.

    Unless I'm missing something I doubt that you get away that easy. It
    works on 32bit, but not on 64 bit with 32bit app support:

    Native 64bit: sys_futex()
    32bit timespec32: compat_sys_futex()
    32bit timespec64: ?????

    You cannot map that to sys_futex() because the pointer size differs.

    Thanks,

    tglx


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