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    SubjectRe: [PATCH 1/9] readahead: introduce PG_readahead
    On Thu, 2007-05-17 at 06:47 +0800, Fengguang Wu wrote:
    > plain text document attachment (mm-introduce-pg_readahead.patch)
    > Introduce a new page flag: PG_readahead.
    > It acts as a look-ahead mark, which tells the page reader:
    > Hey, it's time to invoke the read-ahead logic. For the sake of I/O pipelining,
    > don't wait until it runs out of cached pages!

    Hi Fengguang!

    I've been reading your patches, and I have some (possibly dumb!)

    For this patch: why set a bit in the page, rather than keep a value
    inside the "struct file_ra_state"?


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