On 03/20/2015 10:39 PM, Pavel Hrdina wrote:
From: Luyao Huang <lhu...@redhat.com>

We will ignore --maximum option when only use setvcpus with
this option, like this (this error is another issue):

  # virsh setvcpus test3 --maximum 10
  error: Failed to create controller cpu for group: No such file or directory

this is because we do not set it in flags before we check if there is
a flags set.

Refactor these code and fix the logic.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1204033

Signed-off-by: Luyao Huang <lhu...@redhat.com>
Signed-off-by: Pavel Hrdina <phrd...@redhat.com>
---
  tools/virsh-domain.c | 30 ++++++------------------------
  1 file changed, 6 insertions(+), 24 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 1d8225c..9430ad9 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -6735,6 +6735,8 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
      VSH_EXCLUSIVE_OPTIONS_VAR(current, live);
      VSH_EXCLUSIVE_OPTIONS_VAR(current, config);
      VSH_EXCLUSIVE_OPTIONS_VAR(guest, config);
+    VSH_EXCLUSIVE_OPTIONS_VAR(guest, maximum);
+    VSH_EXCLUSIVE_OPTIONS_VAR(config, maximum);

'maximum' should be used with 'config', and 'live' and 'maximum' are mutually exclusive


      if (config)
          flags |= VIR_DOMAIN_AFFECT_CONFIG;
@@ -6742,9 +6744,8 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
          flags |= VIR_DOMAIN_AFFECT_LIVE;
      if (guest)
          flags |= VIR_DOMAIN_VCPU_GUEST;
-    /* none of the options were specified */
-    if (!current && flags == 0)
-        flags = -1;
+    if (maximum)
+        flags |= VIR_DOMAIN_VCPU_MAXIMUM;

      if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
          return false;
@@ -6754,30 +6755,11 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
          goto cleanup;
      }

-    if (flags == -1) {
+    /* none of the options were specified */
+    if (!current && flags == 0) {
          if (virDomainSetVcpus(dom, count) != 0)
              goto cleanup;
      } else {
-        /* If the --maximum flag was given, we need to ensure only the
-           --config flag is in effect as well */
-        if (maximum) {
-            vshDebug(ctl, VSH_ERR_DEBUG, "--maximum flag was given\n");
-
-            flags |= VIR_DOMAIN_VCPU_MAXIMUM;
-
-            /* If neither the --config nor --live flags were given, OR
-               if just the --live flag was given, we need to error out
-               warning the user that the --maximum flag can only be used
-               with the --config flag */
-            if (live || !config) {
-
-                /* Warn the user about the invalid flag combination */
-                vshError(ctl, _("--maximum must be used with --config only"));
-                goto cleanup;
-            }
-        }
-
-        /* Apply the virtual cpu changes */
          if (virDomainSetVcpusFlags(dom, count, flags) < 0)
              goto cleanup;
      }


--
Regards,
Yanbing Du

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