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(parent: 4f01103) | patch
spinlock emulation: Fix bug when more than INT_MAX spinlocks are initialized.
authorAndres Freund <andres@anarazel.de>
Mon, 8 Jun 2020 22:25:49 +0000 (15:25 -0700)
committerAndres Freund <andres@anarazel.de>
Wed, 17 Jun 2020 19:51:29 +0000 (12:51 -0700)
commitdcf3cb60cbefe6f752c8a1aac5e24d869fd5c52c
tree288e2e93df8a204d18df6f1c46c1b4a22a0a5b9ctree
parent4f01103d647b9b01fbd87fbfb9fcb52b6a01573acommit | diff
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-
src/backend/storage/lmgr/spin.c diff | blob | blame | history
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