Optimize the read speed of the Page Store #18390
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Lazy init PagedUfsBlockReader#mLastPage Avoid unnecessary allocation of PagedUfsBlockReader#mLastPage when the entire block is cached
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What changes are proposed in this pull request?
Lazy init PagedUfsBlockReader#mLastPage
Why are the changes needed?
Avoid unnecessary allocation of PagedUfsBlockReader#mLastPage when the entire block is cached
Does this PR introduce any user facing changes?
no