xen/gnt{dev,alloc}: reserve event channels for notify
authorDaniel De Graaf <dgdegra@tycho.nsa.gov>
Thu, 27 Oct 2011 21:58:49 +0000 (17:58 -0400)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Mon, 21 Nov 2011 22:14:48 +0000 (17:14 -0500)
When using the unmap notify ioctl, the event channel used for
notification needs to be reserved to avoid it being deallocated prior to
sending the notification.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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