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Andres Freund f8d7f29b3e Allow lwlocks to be disowned ... To implement AIO writes, the backend initiating writes needs to transfer the lock ownership to the AIO subsystem, so the lock held during the write can be released in another backend. Other backends need to be able to "complete" an asynchronously started IO to avoid deadlocks (consider e.g. one backend starting IO for a buffer and then waiting for a heavyweight lock held by another relation followed by the current holder of the heavyweight lock waiting for the IO to complete). To that end, this commit adds LWLockDisown() and LWLockReleaseDisowned(). If code uses LWLockDisown() it's the code's responsibility to ensure that the lock is released in case of errors. Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Discussion: https://postgr.es/m/1f6b50a7-38ef-4d87-8246-786d39f46ab9@iki.fi		10 months ago
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access	Add default_char_signedness field to ControlFileData.	10 months ago
archive	Update copyright for 2025	12 months ago
backup	Update copyright for 2025	12 months ago
bootstrap	Remove unnecessary (char *) casts [mem]	10 months ago
catalog	Drop opcintype from index AM strategy translation API	10 months ago
commands	Avoid race condition between "GRANT role" and "DROP ROLE".	10 months ago
executor	Drop opcintype from index AM strategy translation API	10 months ago
foreign	Update copyright for 2025	12 months ago
jit	Simplify executor's handling of CaseTestExpr & CoerceToDomainValue.	11 months ago
lib	Update copyright for 2025	12 months ago
libpq	Remove various unnecessary (char *) casts	10 months ago
main	Update copyright for 2025	12 months ago
nodes	Remove various unnecessary (char *) casts	10 months ago
optimizer	Fix freeing a child join's SpecialJoinInfo	10 months ago
parser	Add ATAlterConstraint struct for ALTER .. CONSTRAINT	10 months ago
partitioning	Track unpruned relids to avoid processing pruned relations	10 months ago
po	Update copyright for 2025	12 months ago
port	Update copyright for 2025	12 months ago
postmaster	backend launchers void * arguments for binary data	10 months ago
regex	Support PG_UNICODE_FAST locale in the builtin collation provider.	11 months ago
replication	Drop opcintype from index AM strategy translation API	10 months ago
rewrite	Implement Self-Join Elimination	10 months ago
snowball	Update to latest Snowball sources.	10 months ago
statistics	Fix for pg_restore_attribute_stats().	10 months ago
storage	Allow lwlocks to be disowned	10 months ago
tcop	backend launchers void * arguments for binary data	10 months ago
tsearch	Add is_analyze parameter to vacuum_delay_point().	10 months ago
utils	Add default_char_signedness field to ControlFileData.	10 months ago
.gitignore	…
Makefile	Update copyright for 2025	12 months ago
common.mk	…
meson.build	Update copyright for 2025	12 months ago
nls.mk	Return yyparse() result not via global variable	11 months ago