Re: [PATCH] make radix tree gang lookup faster by using a bitmap search

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Nick Piggin <[email protected]> wrote:
>
> But of course gang lookup is only useful if a single read() call
>  asks for more than 1 page - is that a performance critical path?

readahead should do gang lookups (or, preferably, find-next, when it's
implemented).  But nobody got around to it.
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