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Re: [libvirt] [PATCH 1/6] conf: net: Fix helper for applying new network definition

On 10/25/12 22:34, Laine Stump wrote:
On 10/25/2012 11:18 AM, Peter Krempa wrote:
When there's no new definition the helper overwrote the old one with
  src/conf/network_conf.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 8976f2a..93d1b4c 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -359,7 +359,7 @@ virNetworkObjSetDefTransient(virNetworkObjPtr network, bool live)
  virNetworkObjUnsetDefTransient(virNetworkObjPtr network)
-    if (network->def) {
+    if (network->newDef) {
          network->def = network->newDef;
          network->newDef = NULL;

Yes. ACK. (/raises hand acknowledging the screwup)


BTW, although the change is correct, it currently is a NOP:

1) in the case of a persistent network, but def and newDef are always
non-NULL when this is called,
2) in the case of a transient network, when this is called, the very
next thing that happens is always to delete the entire networkObj.

In a patch 4/6 of this series, I added code that accesses the definition right before tne network object is discarded. This caused segfault of the daemon when I tried to get rid of the dnsmasq and radvd status files when removing a network completely.


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