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Fix fallback implementation for pg_atomic_test_set_flag().

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The fallback implementation of pg_atomic_test_set_flag() that uses
atomic-exchange gives pg_atomic_exchange_u32_impl() an extra
argument.  This issue has been present since the introduction of
the atomics API in commit b64d92f1a5.

Reviewed-by: Andres Freund
Discussion: https://postgr.es/m/20231114035439.GA1809032%40nathanxps13
Backpatch-through: 12
This commit is contained in:
Nathan Bossart 2023-11-15 15:04:18 -06:00
parent c532be99d7
commit a54129e8b6
1 changed files with 1 additions and 1 deletions
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src/include/port/atomics/generic.h
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@ -83,7 +83,7 @@ pg_atomic_init_flag_impl(volatile pg_atomic_flag *ptr)
static inline bool
pg_atomic_test_set_flag_impl(volatile pg_atomic_flag *ptr)
{
return pg_atomic_exchange_u32_impl(ptr, &value, 1) == 0;
return pg_atomic_exchange_u32_impl(ptr, 1) == 0;
}
#define PG_HAVE_ATOMIC_UNLOCKED_TEST_FLAG