Andreas Kling 163c9d5f8f Kernel: Thread::wait_on() must always leave interrupts enabled on exit ...

The short-circuit path added for waiting on a queue that already had a
pending wake was able to return with interrupts disabled, which breaks
the API contract of wait_on() always returning with IF=1.

Fix this by adding a way to override the restored IF in ScopedCritical.

2020-07-06 11:33:32 +02:00

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