File 704dfd6b-block-job.patch of Package libvirt.3100

commit 704dfd6b0fafe7eafca93a03793389239f8ab869
Author: Michael Chapman <mike@very.puzzling.org>
Date:   Wed Jan 27 13:24:51 2016 +1100

    virsh: avoid unnecessary progress updates
    
    There is no need to call virshPrintJobProgress() unless the block job's
    cur or end cursors have changed since the last iteration.
    
    Signed-off-by: Michael Chapman <mike@very.puzzling.org>

Index: libvirt-1.2.18.4/tools/virsh-domain.c
===================================================================
--- libvirt-1.2.18.4.orig/tools/virsh-domain.c
+++ libvirt-1.2.18.4/tools/virsh-domain.c
@@ -1846,7 +1846,7 @@ vshBlockJobWait(vshBlockJobWaitDataPtr d
 
     unsigned int abort_flags = 0;
     int ret = -1;
-    virDomainBlockJobInfo info;
+    virDomainBlockJobInfo info, last;
     int result;
 
     if (!data)
@@ -1869,6 +1869,8 @@ vshBlockJobWait(vshBlockJobWaitDataPtr d
         return -1;
     }
 
+    last.cur = last.end = 0;
+
     while (true) {
         pthread_sigmask(SIG_BLOCK, &sigmask, &oldsigmask);
         result = virDomainGetBlockJobInfo(data->dom, data->dev, &info, 0);
@@ -1900,8 +1902,9 @@ vshBlockJobWait(vshBlockJobWaitDataPtr d
             goto cleanup;
         }
 
-        if (data->verbose)
+        if (data->verbose && (info.cur != last.cur || info.end != last.end))
             vshPrintJobProgress(data->job_name, info.end - info.cur, info.end);
+        last = info;
 
         if (data->timeout && virTimeMillisNow(&curr) < 0) {
             vshSaveLibvirtError();