Merge pull request #1436 from YanhuiMa/qemu_output

fio_perf: fix qemu version output error

qemu/tests/cfg/fio_perf.cfg

@@ -8,7 +8,7 @@
     threads = "16"
     rw = "read write randread randwrite randrw"
     Host_RHEL:
-        kvm_ver_chk_cmd = "rpm -qa qemu-kvm-rhev && rpm -qa qemu-kvm"
+        kvm_ver_chk_cmd = "rpm -q qemu-kvm-rhev || rpm -q qemu-kvm"
     Linux:
         no ide
         pattern = ".*[read|write].*bw=(\d+(?:\.\d+)?[\w|\s]B/s),\siops=(\d+).*"

qemu/tests/fio_perf.py

@@ -61,7 +61,7 @@ def get_version(session, result_file, kvm_ver_chk_cmd, guest_ver_cmd, type, driv
     :param timeout: Timeout in seconds
     """
 
-    kvm_ver = process.system_output(kvm_ver_chk_cmd)
+    kvm_ver = process.system_output(kvm_ver_chk_cmd, shell=True)
     host_ver = os.uname()[2]
 
     result_file.write("### kvm-userspace-ver : %s\n" % kvm_ver)