[roll] Roll fuchsia [kernel][sched][wait] Make deferred reschedule IPIs stateful. Avoid passing around CPU accumulator masks when deferring reschedule IPIs. Instead, add a stateful facility to Thread that accumulates pending reschedules generated on local CPU to be flushed later. - Move remaining mp bitmasks to atomics to reduce dependence on the thread lock. - Remove obsolete realtime mp bits. - Add support for pendable reschedule IPIs and tidy up the logic that generates reschedule IPIs. - Clean up the WaitQueue/OwnedWaitQueue that passed around CPU masks to use the new pending reschedule facility. Also clean up some bool return values that were ultimately not used for anything. Test: fx core-tests --qemu -k (100 iterations) Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/436998 Original-Revision: 35790dfb7448d81e893859a06a463c9eabf5f7eb GitOrigin-RevId: 02ebd767a15ce374fb94ad83788ea6053ccc87ef Change-Id: Id31ca7068a5effa4f4b8352496a0135304c6b5f8
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Next run:
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