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    SubjectRe: [PATCH] Fix argument checking in sched_setaffinity
    Looks good - thanks, Andi.

    I notice that you didn't bother with the fractional byte that is handled
    by 'endmask' in mm/mempolicy.c:get_nodes(). But I really don't give a
    hoot - either way is fine by me.

    I've written a couple of code snippets that manage to intuit the size of
    the kernel's cpumask dynamically from user space, by probing with
    various sched_getaffinity() calls. But since your patch only changes
    the errors generated by sched_setaffinity() [that's "set", not "get"], I
    will not experience any grief from this subtle change in the kernel's

    Should you lock hotplug before calling get_user_cpu_mask(), since
    get_user_cpu_mask() depends on cpu_online_mask()?

    I won't rest till it's the best ...
    Programmer, Linux Scalability
    Paul Jackson <> 1.650.933.1373
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