Evgeniy Polyakov wrote:
Kernel does not put there a new entry, it is only done inside
kevent_wait(). Entries are put into queue (in any context), where they can be obtained
from only kevent_wait() or kevent_get_events().
I know this is how it's done now. But it is not where it has to end.
IMO we have to get to a solution where new events are posted to the ring
buffer asynchronously, i.e., without a thread calling kevent_wait. And
then you need the extra parameter and verification. Even if it's today
not needed we have to future-proof the interface since it cannot be
changed once in use.
--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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