Re: [PATCH 7/8] readahead: basic support for backwards prefetching

[Andrew Morton]

On Mon, 21 Nov 2011 17:18:26 +0800
Wu Fengguang <fengguang.wu@xxxxxxxxx> wrote:

> Add the backwards prefetching feature. It's pretty simple if we don't
> support async prefetching and interleaved reads.

Well OK, but I wonder how many applications out there read files in
reverse order.  Is it common enough to bother special-casing in the
kernel like this?


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