Horton

spinlock emulation: Fix bug when more than INT_MAX spinlocks are initialized.

Andres Freund <andres@anarazel.de>

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Commit: dcf3cb60cbefe6f752c8a1aac5e24d869fd5c52c
Author: Andres Freund <andres@anarazel.de>
Date: 2020-06-17T19:51:29Z
Releases: 9.5.23 
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-

Files

PathChange+/−
src/backend/storage/lmgr/spin.c modified +1 −1

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