Toward non-blocking asynchronous I/O
Toward non-blocking asynchronous I/O
Posted Jun 2, 2017 6:19 UTC (Fri) by ssmith32 (subscriber, #72404)Parent article: Toward non-blocking asynchronous I/O
I'm assuming older kernels throw an error if they check the new flag, and it's set? Otherwise I can't understand why that matters...
Posted Jun 2, 2017 7:06 UTC (Fri)
by peter-b (guest, #66996)
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Toward non-blocking asynchronous I/O
I think the problem is that older kernels ignore those bits entirely, rather than forcing them to be zeroed. So there's no reliable way to find out whether the flag's having any effect.