29f60cace1
Previously, mmurelease() was always called with palloc spinlock held. This is unneccesary for some mmurelease() implementations as they wont release pages to the palloc pool. This change removes pagechainhead() and pagechaindone() and replaces them with just freepages() call, which aquires the palloc lock internally as needed. freepages() avoids holding the palloc lock while walking the linked list of pages, avoding some lock contention. |
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