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SubjectRe: [PATCH 13/23] Hibernation: Partial page I/O support.
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.


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