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    SubjectRe: [PATCH 13/23] Hibernation: Partial page I/O support.
    Date
    On Wednesday, October 13, 2010, Pavel Machek wrote:
    > Hi!
    >
    > > Add functions that can be used for coalescing and splitting buffers
    > > that are smaller than PAGE_SIZE. These functions provide no method
    > > of determining where the boundaries of the smaller buffers are to
    > > be found - that is the caller's problem.
    >
    > I don't get it; why do we need that support?

    This is related to compression. This way we can put data from two or more
    compressed pages into one page frame.

    Thanks,
    Rafael


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