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Commitbb39bad

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nmischpull[bot]
authored andcommitted
Warn if LOCKTAG_TUPLE is held at commit, under debug_assertions.
The current use always releases this locktag. A planned use willcontinue that intent. It will involve more areas of code, making unlockomissions easier. Warn under debug_assertions, like we do for variousresource leaks. Back-patch to v12 (all supported versions), the planfor the commit of the new use.Reviewed by Heikki Linnakangas.Discussion:https://postgr.es/m/20240512232923.aa.nmisch@google.com
1 parent0911063 commitbb39bad

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  • src/backend/storage/lmgr

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‎src/backend/storage/lmgr/lock.c

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@@ -2305,6 +2305,16 @@ LockReleaseAll(LOCKMETHODID lockmethodid, bool allLocks)
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locallock->numLockOwners=0;
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}
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#ifdefUSE_ASSERT_CHECKING
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/*
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* Tuple locks are currently held only for short durations within a
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* transaction. Check that we didn't forget to release one.
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*/
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if (LOCALLOCK_LOCKTAG(*locallock)==LOCKTAG_TUPLE&& !allLocks)
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elog(WARNING,"tuple lock held at commit");
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#endif
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/*
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* If the lock or proclock pointers are NULL, this lock was taken via
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* the relation fast-path (and is not known to have been transferred).

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