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Hallvard Furuseth 7030ad16e2 Clean up mdb_page_touch(), mdb_page_copy().
When copying, round up/down to aligned sizes. Skip the unused portion,
this was not done when touching a page dirty in the parent txn.
No other change in behavior.

Simplify mdb_page_touch(), including: Drop test m3==mc, the condition
is caught below. Don't "modify" the parent's pgno into the same pgno,
when a nested txn copies a parent's page into its freelist.
2013-06-13 08:58:24 +02:00
libraries/liblmdb Clean up mdb_page_touch(), mdb_page_copy(). 2013-06-13 08:58:24 +02:00