]> git.ipfire.org Git - thirdparty/postgresql.git/commit
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 19:51:20 +0000 (12:51 -0700)
commitb295f666b7f0d613cf3c9fef211408a2ac4ed1f6
treed47873cc67b0956fd825e5c2e0e3cec87aed251c
parent44a6a82c791df00c2db7c64f26a63e64ae94bd46
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