Andres Freund 6cc2866c4c Fix deadlock danger when atomic ops are done under spinlock. ...

This was a danger only for --disable-spinlocks in combination with
atomic operations unsupported by the current platform.

While atomics.c was careful to signal that a separate semaphore ought
to be used when spinlock emulation is active, spin.c didn't actually
implement that mechanism. That's my (Andres') fault, it seems to have
gotten lost during the development of the atomic operations support.

Fix that issue and add test for nesting atomic operations inside a
spinlock.

Author: Andres Freund
Discussion: https://postgr.es/m/20200605023302.g6v3ydozy5txifji@alap3.anarazel.de
Backpatch: 9.5-

2020-06-18 14:13:06 -07:00

..

backend

Fix deadlock danger when atomic ops are done under spinlock.

2020-06-18 14:13:06 -07:00

bin

pg_upgrade: set vacuum_defer_cleanup_age to zero

2020-06-15 20:59:40 -04:00

common

Fix command-line colorization on Windows with VT100-compatible environments

2020-03-02 15:46:24 +09:00

fe_utils

Fix parallel restore of FKs to partitioned tables

2019-10-17 09:58:01 +02:00

include

Avoid need for valgrind suppressions for pg_atomic_init_u64 on some platforms.

2020-06-08 20:02:52 -07:00

interfaces

Try to read data from the socket in pqSendSome's write_failed paths.

2020-06-07 13:44:13 -04:00

makefiles

Select CFLAGS_SL at configure time, not in platform-specific Makefiles.

2019-10-21 12:32:35 -04:00

pl

Translation updates

2020-05-11 13:19:18 +02:00

port

Stamp 12.3.

2020-05-11 17:08:58 -04:00

template

Select CFLAGS_SL at configure time, not in platform-specific Makefiles.

2019-10-21 12:32:35 -04:00

test

Fix deadlock danger when atomic ops are done under spinlock.

2020-06-18 14:13:06 -07:00

timezone

Sync our copy of the timezone library with IANA release tzcode2020a.

2020-06-17 18:29:44 -04:00

tools

Avoid need for valgrind suppressions for pg_atomic_init_u64 on some platforms.

2020-06-08 20:02:52 -07:00

tutorial

Phase 2 pgindent run for v12.

2019-05-22 13:04:48 -04:00

.gitignore

…

DEVELOPERS

…

Makefile

…

Makefile.global.in

Select CFLAGS_SL at configure time, not in platform-specific Makefiles.

2019-10-21 12:32:35 -04:00

Makefile.shlib

Ensure static libraries have correct mod time even if ranlib messes it up.

2018-11-29 15:53:44 -05:00

nls-global.mk

NLS: Fix backend gettext triggers

2019-09-23 09:05:50 +02:00