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postgres/src/backend
Andres Freund b91cfaa34f spinlock emulation: Fix bug when more than INT_MAX spinlocks are initialized.
Once the counter goes negative we ended up with spinlocks that errored
out on first use (due to check in tas_sema).

Author: Andres Freund
Reviewed-By: Robert Haas
Discussion: https://postgr.es/m/20200606023103.avzrctgv7476xj7i@alap3.anarazel.de
Backpatch: 9.5-
2020-06-17 12:51:12 -07:00
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