> And we'll need to actually *be* in-atomic. That means we need an > open-coded inc_preempt_count() and dec_preempt_count() in there and I don't > see them. > .. > Why is VM_LOCKED being set? (It needs a comment). > > Where does it get unset? if this is an attempt to make the copy_in_atomic to be atomic, then it is a bug; the user can unset this bit after all via mprotect, even from another thread, and concurrently. UnGood(tm). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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