[PATCH v2 05/10] qemu: add note for outdated legacy block job events

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Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@xxxxxxxxxxxxx>
---
 src/qemu/qemu_process.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 9bbc9dc..8706de3 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8214,6 +8214,12 @@ qemuProcessRefreshLegacyBlockjobs(virQEMUDriverPtr driver,
     if (virHashForEach(blockJobs, qemuProcessRefreshLegacyBlockjob, vm) < 0)
         goto cleanup;
 
+    /*
+     * At this point we can have outdated pending events in job->newstate.
+     * These events can arise from qemu events received before we get
+     * reply to query-block-jobs command. So the code that handle legacy
+     * block job events should handle outdated events correctly.
+     */
     for (i = 0; i < vm->def->ndisks; i++) {
         virDomainDiskDefPtr disk = vm->def->disks[i];
         qemuBlockJobDataPtr job =  qemuBlockJobDiskGetJob(disk);
-- 
1.8.3.1




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