qemu: Cancel migration if guest encoutners I/O error while migrating
qemu: Cancel migration if guest encoutners I/O error while migrating

During a live migration the guest may receive a disk access I/O error.
In this state the guest is unable to continue running on a remote host
after migration as some state may be present in the kernel and not
migrated.

With this patch, the migration is canceled in such case so it can either
continue on the source if the I/O issues are recovered or has to be
destroyed anyways.

rlaager/libvirt,crobinso/libvirt,nertpinx/libvirt,shugaoye/libvirt,shugaoye/libvirt,zhlcindy/libvirt-1.1.4-maintain,jardasgit/libvirt,zhlcindy/libvirt-1.1.4-maintain,shugaoye/libvirt,elmarco/libvirt,jfehlig/libvirt,datto/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,cbosdo/libvirt,andreabolognani/libvirt,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,rlaager/libvirt,elmarco/libvirt,elmarco/libvirt,rlaager/libvirt,eskultety/libvirt,cbosdo/libvirt,rlaager/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,rlaager/libvirt,andreabolognani/libvirt,crobinso/libvirt,olafhering/libvirt,eskultety/libvirt,jfehlig/libvirt,zippy2/libvirt,olafhering/libvirt,elmarco/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,jfehlig/libvirt,libvirt/libvirt,eskultety/libvirt,andreabolognani/libvirt,nertpinx/libvirt,taget/libvirt,cbosdo/libvirt,taget/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,zippy2/libvirt,libvirt/libvirt,andreabolognani/libvirt,shugaoye/libvirt,agx/libvirt,eskultety/libvirt,cbosdo/libvirt,agx/libvirt,jfehlig/libvirt,taget/libvirt,elmarco/libvirt,jardasgit/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,zippy2/libvirt,crobinso/libvirt,datto/libvirt,cbosdo/libvirt,agx/libvirt,olafhering/libvirt,agx/libvirt,agx/libvirt,nertpinx/libvirt,eskultety/libvirt,zippy2/libvirt,VenkatDatta/libvirt,datto/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,taget/libvirt,taget/libvirt,olafhering/libvirt,shugaoye/libvirt,datto/libvirt,fabianfreyer/libvirt,libvirt/libvirt,crobinso/libvirt