tree 72cb03ef930fcc2798b1030d77bb36f0f7fdd218
parent 03cf077ac9c02ccc192b9011ced12cc74f9151bb
author Cornelia Huck <cornelia.huck@de.ibm.com> 1375370820 +0200
committer Cornelia Huck <cornelia.huck@de.ibm.com> 1400583958 +0200

s390x/virtio-ccw: reference-counted indicators

Make code using the same indicators point to a single allocated structure
that is freed when the last user goes away.

This will be used by the irqfd code to unmap addresses after the last user
is gone.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>