Avoiding page reference-count overflows

Posted Apr 16, 2019 15:08 UTC (Tue) by willy (subscriber, #9762)
In reply to: Avoiding page reference-count overflows by nivedita76
Parent article: Avoiding page reference-count overflows

That's right. There are now essentially four ranges for the page refcount -- 0 (unreferenced), up to 2^31 (normal), 2^31 to 2^32-127 (heavily used) and -127 to -1 (underflow)

The macro is misnamed, I now realise.