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Rev 1822 Rev 1888
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{
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{
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    ipl_t ipl;
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    ipl_t ipl;
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    int rc;
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    int rc;
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    ASSERT(THREAD);
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    ASSERT(THREAD);
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    ASSERT(!THREAD->in_copy_from_uspace);
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    ASSERT(!THREAD->in_copy_to_uspace);
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    if (!KERNEL_ADDRESS_SPACE_SHADOWED) {
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    if (!KERNEL_ADDRESS_SPACE_SHADOWED) {
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        if (overlaps((uintptr_t) uspace_dst, size,
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        if (overlaps((uintptr_t) uspace_dst, size,
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            KERNEL_ADDRESS_SPACE_START, KERNEL_ADDRESS_SPACE_END-KERNEL_ADDRESS_SPACE_START)) {
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            KERNEL_ADDRESS_SPACE_START, KERNEL_ADDRESS_SPACE_END-KERNEL_ADDRESS_SPACE_START)) {
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            /*
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            /*
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            return EPERM;
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            return EPERM;
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        }
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        }
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    }
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    }
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    ipl = interrupts_disable();
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    ipl = interrupts_disable();
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    THREAD->in_copy_from_uspace = true;
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    THREAD->in_copy_to_uspace = true;
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    rc = memcpy_to_uspace(uspace_dst, src, size);
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    rc = memcpy_to_uspace(uspace_dst, src, size);
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    THREAD->in_copy_from_uspace = false;
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    THREAD->in_copy_to_uspace = false;
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    interrupts_restore(ipl);
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    interrupts_restore(ipl);
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    return !rc ? EPERM : 0;
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    return !rc ? EPERM : 0;
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}
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}
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