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    SubjectRe: compat ioctl32 for /dev/snapshot?
    Arnd Bergmann wrote:
    > On Monday 04 May 2009, Rafael J. Wysocki wrote:
    >> In fact I don't think the 32-bit user space will work with 64-bit kernels as is
    >> in this particular case, because of the different pointer size.
    >> Having a quick look at the code (I don't remember the details right now)
    >> I think most probably it could be modified to handle this case too, but I'm not
    >> really sure.
    > I don't see anything in the snapshot code that passes pointers to the
    > kernel, so why should the pointer size matter?

    It's the userspace part (uswsusp). In particular it parses swap
    on-disk data structures.

    But in any case, without compat_ioctl32 in kernel userspace part
    can not be fixed.


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      Last update: 2009-05-05 13:45    [W:0.020 / U:15.096 seconds]
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