[libvirt] wrong path of domblkstat

Hi all: I tried to use virsh domblkstat to get block information of a vm(xen para-virtualized), and it returns error message like this error: Failed to get block stats vm1 hda error: internal error read_bd_stats: Failed to read any block statistics I found the code in \src\xen\block_stats.c is wrong in line 121              "/sys/devices/xen-backend/vbd-%d-%d/statistics/%s", should be             "/sys/devices/vbd-%d-%d/statistics/%s", in line 127 should be "/sys/devices/tap-%d-%d/statistics/%s", After modified and rebuild the soure code,the domblkstat can work fine. Anyone can help to update the code in the git?