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authorDr. David Alan Gilbert <dgilbert@redhat.com>2015-11-11 14:02:27 +0000
committerJuan Quintela <quintela@redhat.com>2015-11-12 17:52:29 +0100
commit1c0d249ddf3c75c3992847d0af67f79a1cfd23d2 (patch)
tree62174193bfdc725959c8f843fcc97b8ee3fce105 /migration/migration.c
parent80e60c6e1c417aa50a4fed1cb1a2f73885be3bef (diff)
Finish non-postcopiable iterative devices before package
Where we have iterable, but non-postcopiable devices (e.g. htab or block migration), complete them before forming the 'package' but with the CPUs stopped. This stops them filling up the package. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/migration.c')
-rw-r--r--migration/migration.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/migration/migration.c b/migration/migration.c
index c5c977e737..5df490adf6 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1429,6 +1429,12 @@ static int postcopy_start(MigrationState *ms, bool *old_vm_running)
}
/*
+ * Cause any non-postcopiable, but iterative devices to
+ * send out their final data.
+ */
+ qemu_savevm_state_complete_precopy(ms->file, true);
+
+ /*
* in Finish migrate and with the io-lock held everything should
* be quiet, but we've potentially still got dirty pages and we
* need to tell the destination to throw any pages it's already received
@@ -1471,7 +1477,7 @@ static int postcopy_start(MigrationState *ms, bool *old_vm_running)
*/
qemu_savevm_send_postcopy_listen(fb);
- qemu_savevm_state_complete_precopy(fb);
+ qemu_savevm_state_complete_precopy(fb, false);
qemu_savevm_send_ping(fb, 3);
qemu_savevm_send_postcopy_run(fb);
@@ -1538,7 +1544,7 @@ static void migration_completion(MigrationState *s, int current_active_state,
ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
if (ret >= 0) {
qemu_file_set_rate_limit(s->file, INT64_MAX);
- qemu_savevm_state_complete_precopy(s->file);
+ qemu_savevm_state_complete_precopy(s->file, false);
}
}
qemu_mutex_unlock_iothread();