[PATCH 1/2] qemu: fix qemuMigrationSrcCleanup to use qemuMigrationJobFinish

Nikolay Shirokovskiy nshirokovskiy at virtuozzo.com
Tue Aug 18 10:26:35 UTC 2020


qemuMigrationSrcCleanup uses qemuDomainObjDiscardAsyncJob currently. But
discard does not reduce jobs_queued counter so it leaks. Also discard does not
notify other threads that job condition is available. Discard does reset nested
job but nested job is not possible in this conditions.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy at virtuozzo.com>
---
 src/qemu/qemu_migration.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 142faa2..301475a 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2026,7 +2026,6 @@ qemuMigrationSrcCleanup(virDomainObjPtr vm,
     switch ((qemuMigrationJobPhase) priv->job.phase) {
     case QEMU_MIGRATION_PHASE_BEGIN3:
         /* just forget we were about to migrate */
-        qemuDomainObjDiscardAsyncJob(driver, vm);
         break;
 
     case QEMU_MIGRATION_PHASE_PERFORM3_DONE:
@@ -2036,7 +2035,6 @@ qemuMigrationSrcCleanup(virDomainObjPtr vm,
         qemuMigrationParamsReset(driver, vm, QEMU_ASYNC_JOB_MIGRATION_OUT,
                                  jobPriv->migParams, priv->job.apiFlags);
         /* clear the job and let higher levels decide what to do */
-        qemuDomainObjDiscardAsyncJob(driver, vm);
         break;
 
     case QEMU_MIGRATION_PHASE_PERFORM3:
@@ -2053,8 +2051,9 @@ qemuMigrationSrcCleanup(virDomainObjPtr vm,
     case QEMU_MIGRATION_PHASE_NONE:
     case QEMU_MIGRATION_PHASE_LAST:
         /* unreachable */
-        ;
+        return;
     }
+    qemuMigrationJobFinish(driver, vm);
 }
 
 
-- 
1.8.3.1




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