a42e337ede
The following sequence in the scheduler may potentially lead to deadlock: - globrunqget() -> runqput() -> runqputslow() -> globrunqputbatch() However, according to the current logic of the scheduler it is not possible to face the deadlock. The patch explicitly excludes the deadlock, even though it is impossible situation at the moment. Additionally, the "runq" and "globrunq" APIs were partially refactored, which allowed to minimize the usage of these APIs by each other. This will prevent situations described in the CL. Change-Id: I7318f935d285b95522998e0903eaa6193af2ba48 Reviewed-on: https://go-review.googlesource.com/c/go/+/662216 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
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