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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		1 year ago
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access	Add default_char_signedness field to ControlFileData.	1 year ago
archive	Update copyright for 2025	1 year ago
backup	Update copyright for 2025	1 year ago
bootstrap	Update copyright for 2025	1 year ago
catalog	Add default_char_signedness field to ControlFileData.	1 year ago
commands	Don't lock partitions pruned by initial pruning	1 year ago
common	Add support for OAUTHBEARER SASL mechanism	1 year ago
datatype	Avoid using timezone Asia/Manila in regression tests.	1 year ago
executor	Don't lock partitions pruned by initial pruning	1 year ago
fe_utils	Specify the encoding of input to fmtId()	1 year ago
foreign	Update copyright for 2025	1 year ago
jit	Fix grammatical typos around possessive "its"	1 year ago
lib	Add new StringInfo APIs to allow callers to specify the buffer size.	1 year ago
libpq	Add support for OAUTHBEARER SASL mechanism	1 year ago
mb	Add pg_encoding_set_invalid()	1 year ago
nodes	Don't lock partitions pruned by initial pruning	1 year ago
optimizer	Implement Self-Join Elimination	1 year ago
parser	Virtual generated columns	1 year ago
partitioning	Move PartitionPruneInfo out of plan nodes into PlannedStmt	1 year ago
pch	Update copyright for 2025	1 year ago
port	Fix comment about AVX-512 popcount support.	1 year ago
portability	Update copyright for 2025	1 year ago
postmaster	backend launchers void * arguments for binary data	1 year ago
regex	Update copyright for 2025	1 year ago
replication	backend launchers void * arguments for binary data	1 year ago
rewrite	Implement Self-Join Elimination	1 year ago
snowball	Update to latest Snowball sources.	1 year ago
statistics	Update copyright for 2025	1 year ago
storage	Allow lwlocks to be disowned	1 year ago
tcop	backend launchers void * arguments for binary data	1 year ago
tsearch	Update copyright for 2025	1 year ago
utils	Don't lock partitions pruned by initial pruning	1 year ago
.gitignore	Use <stdint.h> and <inttypes.h> for c.h integers.	2 years ago
Makefile	Use <stdint.h> and <inttypes.h> for c.h integers.	2 years ago
c.h	IWYU widely useful pragmas	1 year ago
fmgr.h	Update copyright for 2025	1 year ago
funcapi.h	Update copyright for 2025	1 year ago
getopt_long.h	IWYU widely useful pragmas	1 year ago
meson.build	Update copyright for 2025	1 year ago
miscadmin.h	Use "ssize_t" not "long" in max_stack_depth-related code.	1 year ago
pg_config.h.in	Add support for OAUTHBEARER SASL mechanism	1 year ago
pg_config_manual.h	Update copyright for 2025	1 year ago
pg_getopt.h	IWYU widely useful pragmas	1 year ago
pg_trace.h	IWYU widely useful pragmas	1 year ago
pgstat.h	Move wal_buffers_full from PgStat_PendingWalStats to WalUsage	1 year ago
pgtar.h	Update copyright for 2025	1 year ago
pgtime.h	Seek zone abbreviations in the IANA data before timezone_abbreviations.	1 year ago
port.h	Avoid breaking SJIS encoding while de-backslashing Windows paths.	1 year ago
postgres.h	IWYU widely useful pragmas	1 year ago
postgres_ext.h	IWYU widely useful pragmas	1 year ago
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windowapi.h	Update copyright for 2025	1 year ago