[libvirt] [PATCH 5/8] qemu: blockjob: Allow NULL 'mirror' for block copy jobs due to migration

[Peter Krempa]

The non-shared-storage migration tracks the storage source used
explicitly in the migration data so we must allow for processing of the
block job which has NULL mirror as the mirror will not be populated.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/qemu/qemu_blockjob.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index baa79ea80c..2773acc990 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -1139,7 +1139,9 @@ qemuBlockJobProcessEventConcludedCopyPivot(virQEMUDriverPtr driver,
 {
     VIR_DEBUG("copy job '%s' on VM '%s' pivoted", job->name, vm->def->name);

-    if (!job->disk)
+    /* mirror may be NULL for copy job corresponding to migragion */
+    if (!job->disk ||
+        !job->disk->mirror)
         return;

     /* for shallow copy without reusing external image the user can either not
@@ -1166,7 +1168,9 @@ qemuBlockJobProcessEventConcludedCopyAbort(virQEMUDriverPtr driver,
 {
     VIR_DEBUG("copy job '%s' on VM '%s' aborted", job->name, vm->def->name);

-    if (!job->disk)
+    /* mirror may be NULL for copy job corresponding to migragion */
+    if (!job->disk ||
+        !job->disk->mirror)
         return;

     qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob, job->disk->mirror);
@@ -1383,7 +1387,8 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
         break;

     case QEMU_BLOCKJOB_STATE_READY:
-        if (job->disk && job->disk->mirror) {
+        /* mirror may be NULL for copy job corresponding to migragion */
+        if (job->disk) {
             job->disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_READY;
             qemuBlockJobEmitEvents(driver, vm, job->disk, job->type, job->newstate);
         }
-- 
2.23.0