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authorDavid Vrabel <david.vrabel@citrix.com>2015-06-25 14:10:28 +0300
committerDavid Vrabel <david.vrabel@citrix.com>2015-10-23 16:20:04 +0300
commitb2ac6aa8f71bf57b948ee68cd913c350b932da88 (patch)
tree265cb770cf581da01049c6bc6acc696a03467411 /include/xen
parentde5a77d8422fc7ed0b2f4349bceb65a1a639e5b2 (diff)
downloadlinux-b2ac6aa8f71bf57b948ee68cd913c350b932da88.tar.xz
xen/balloon: only hotplug additional memory if required
Now that we track the total number of pages (included hotplugged regions), it is easy to determine if more memory needs to be hotplugged. Add a new BP_WAIT state to signal that the balloon process needs to wait until kicked by the memory add notifier (when the new section is onlined by userspace). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> --- v3: - Return BP_WAIT if enough sections are already hotplugged. v2: - New BP_WAIT status after adding new memory sections.
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