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Philippe Gerum authored
ret_from_fork is always entered with hw interrupts off, which prevents real-time domains to preempt the Linux kernel during part of the initial context switch to the new task, which could in turn raise the worst-case latency figures. To avoid this, stall the root domain stage in the interrupt pipeline to keep the scheduling tail code free from Linux-handled IRQs, then enable hardware interrupts again. Signed-off-by:
Philippe Gerum <rpm@xenomai.org> Signed-off-by:
Mike Frysinger <vapier@gentoo.org>
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