Re: [PATCH] Support transient attribute on vmware disks

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Hi Eric,

thank you very much for your assistance! I'll take a look at writing that test tomorrow.

Wout.


On Tue, Dec 17, 2013 at 10:24 PM, Eric Blake <eblake@xxxxxxxxxx> wrote:
On 12/17/2013 01:45 PM, Eric Blake wrote:
> On 12/17/2013 01:42 PM, Eric Blake wrote:
>> On 12/17/2013 10:04 AM, Wout Mertens wrote:
>>> From: Wout Mertens <Wout.Mertens@xxxxxxxxx>
>>>
>>> vmx/vmx.c ignores the transient attribute on the disk xml format. This patch
>>> adds a 1-1 relationship between it and [disk].mode = "independent-nonpersistent".
>>>
>>> The other modes are ignored as before. It works in my testing.
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1044023
>>>
>>> ---
>>>  src/vmx/vmx.c | 17 ++++++++++++++++-
>>>  1 file changed, 16 insertions(+), 1 deletion(-)
>>
>> Congrats on your first libvirt patch.  It failed 'make syntax-check':
>>
>
>>
>> But I don't mind fixing those on a first-time submission.
>
> Oh, I spoke too soon.  It also fails 'make check':
>
> ../build-aux/test-driver: line 95: 19280 Segmentation fault      (core
> dumped) "$@" > $log_file 2>&1
> FAIL: vmx2xmltest
>
> Not a good sign.  I can still try and fix that before pushing, but for
> now your patch is not upstream.

Found it.  Would you also be willing to do a followup patch to enhance
the testsuite to add a case of a vmx file that gets translated into the
<transient> libvirt xml?  Pushed now, with this added:

diff --git i/src/vmx/vmx.c w/src/vmx/vmx.c
index c04e397..8fb2a93 100644
--- i/src/vmx/vmx.c
+++ w/src/vmx/vmx.c
@@ -2181,7 +2181,9 @@ virVMXParseDisk(virVMXContext *ctx,
virDomainXMLOptionPtr xmlopt, virConfPtr con
             (*def)->src = "" ctx->opaque);
             (*def)->cachemode = writeThrough ?
VIR_DOMAIN_DISK_CACHE_WRITETHRU
                                              :
VIR_DOMAIN_DISK_CACHE_DEFAULT;
-            (*def)->transient = STRCASEEQ(mode,
"independent-nonpersistent");
+            if (mode)
+                (*def)->transient = STRCASEEQ(mode,
+                                              "independent-nonpersistent");

             if ((*def)->src == NULL) {
                 goto cleanup;
@@ -2300,6 +2302,7 @@ virVMXParseDisk(virVMXContext *ctx,
virDomainXMLOptionPtr xmlopt, virConfPtr con
     VIR_FREE(deviceType);
     VIR_FREE(fileType);
     VIR_FREE(fileName);
+    VIR_FREE(mode);

     return result;

--
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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