tree de3d614f3c0d694152e72eb882c0066b8436c124
parent 0475d94fffe4e5fda59e0334b6dd53df00c5deb6
author Paolo Bonzini <pbonzini@redhat.com> 1369823426 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1372952570 +0200

exec: remove cur_map

cur_map is not used anymore; instead, each AddressSpaceDispatch
has its own nodes/sections pair.  The priorities of the
MemoryListeners, and in the future RCU, guarantee that the
nodes/sections are not freed while they are still in use.

(In fact, next_map itself is not needed except to free the data on the
next update).

To avoid incorrect use, replace cur_map with a temporary copy that
is only valid while the topology is being updated.  If you use it,
the name prev_map makes it clear that you're doing something weird.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>