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  1. WiredTiger
  2. WT-104

memory barrier after reading page's write generation

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    • Task
    • Status: Closed
    • Resolution: Done
    • None
    • WT1.0
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    Description

      It occurred to me – in the page-search code, we copy the page's write generation, then search the page.

      It occurs to me we should probably have a memory barrier instruction after we copy the write generation, otherwise the compiler might re-order that read after we've actually searched the page? (Or make page->write_gen volatile?)

      --keith

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              keith.bostic@mongodb.com Keith Bostic (Inactive)
              wiredtiger WiredTiger
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