On 07/23/2012 02:19 PM, Rafael Aquini wrote:

In a glance, I believe this whole dance you're suggesting might just be too much
of an overcomplication, and the best approach would be simply teaching the
hotplug bits about the ballooned corner case just like it's being done to
compaction/migration. However, I'll look at it carefully before making any other
adjustments/propositions over here.

Compaction and hotplug do essentially the same thing
here: "collect all the movable pages from a page block,
and move them elsewhere".

Whether or not it is easier for them to share code, or
to duplicate a few lines of code, is something that can
be looked into later.

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