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| author | Noah Misch <noah@leadboat.com> | 2024-11-02 09:04:55 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2024-11-02 09:05:04 -0700 |
| commit | 6d5b4031b927328e548088ebcc24781223b3b803 (patch) | |
| tree | afe2642c3ab682edaa84649b9b884ada6b3158ec /src/backend/jit/llvm/SectionMemoryManager.cpp | |
| parent | 27642d89081ec5ec2949b1a52cb707adce5798e8 (diff) | |
| download | postgresql-6d5b4031b927328e548088ebcc24781223b3b803.tar.gz postgresql-6d5b4031b927328e548088ebcc24781223b3b803.zip | |
Move I/O before the index_update_stats() buffer lock region.
Commit a07e03fd8fa7daf4d1356f7cb501ffe784ea6257 enlarged the work done
here under the pg_class heap buffer lock. Two preexisting actions are
best done before holding that lock. Both RelationGetNumberOfBlocks()
and visibilitymap_count() do I/O, and the latter might exclusive-lock a
visibility map buffer. Moving these reduces contention and risk of
undetected LWLock deadlock. Back-patch to v12, like that commit.
Discussion: https://postgr.es/m/20241031200139.b4@rfd.leadboat.com
Diffstat (limited to 'src/backend/jit/llvm/SectionMemoryManager.cpp')
0 files changed, 0 insertions, 0 deletions