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authorAndrey Gruzdev <andrey.gruzdev@virtuozzo.com>2021-04-01 12:22:24 +0300
committerDr. David Alan Gilbert <dgilbert@redhat.com>2021-04-06 18:56:01 +0100
commit1a8e44a89f1976e06300393337f78d561f95b339 (patch)
tree3d0fc9a3ed4453a02bc02b6c3c8aa867b1835b2d /migration
parentecb23efea0899be6723f4ea9636de5cf7de90cfe (diff)
downloadqemu-1a8e44a89f1976e06300393337f78d561f95b339.zip
migration: Inhibit virtio-balloon for the duration of background snapshot
The same thing as for incoming postcopy - we cannot deal with concurrent RAM discards when using background snapshot feature in outgoing migration. Fixes: 8518278a6af589ccc401f06e35f171b1e6fae800 (migration: implementation of background snapshot thread) Signed-off-by: Andrey Gruzdev <andrey.gruzdev@virtuozzo.com> Reported-by: David Hildenbrand <david@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20210401092226.102804-3-andrey.gruzdev@virtuozzo.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/migration.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c
index 00e13f9d58..be4729e7c8 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1976,6 +1976,14 @@ bool migration_in_incoming_postcopy(void)
return ps >= POSTCOPY_INCOMING_DISCARD && ps < POSTCOPY_INCOMING_END;
}
+bool migration_in_bg_snapshot(void)
+{
+ MigrationState *s = migrate_get_current();
+
+ return migrate_background_snapshot() &&
+ migration_is_setup_or_active(s->state);
+}
+
bool migration_is_idle(void)
{
MigrationState *s = current_migration;