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migration/savevm: split qemu_savevm_state_complete_precopy() into two parts

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This is a preparation patch for further cleanup.

No functional change, just wrap two major part of
qemu_savevm_state_complete_precopy() into function.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190709140924.13291-3-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Yang 2019-07-09 22:09:23 +08:00 committed by Dr. David Alan Gilbert
parent 4e455d51ef
commit 622a80c955
1 changed files with 49 additions and 17 deletions
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66
migration/savevm.c
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@ -1246,23 +1246,12 @@ void qemu_savevm_state_complete_postcopy(QEMUFile *f)
qemu_fflush(f);
}
int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
bool inactivate_disks)
static
int qemu_savevm_state_complete_precopy_iterable(QEMUFile *f, bool in_postcopy,
bool iterable_only)
{
QJSON *vmdesc;
int vmdesc_len;
SaveStateEntry *se;
int ret;
bool in_postcopy = migration_in_postcopy();
Error *local_err = NULL;
if (precopy_notify(PRECOPY_NOTIFY_COMPLETE, &local_err)) {
error_report_err(local_err);
}
trace_savevm_state_complete_precopy();
cpu_synchronize_all_states();
QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
if (!se->ops ||
@ -1291,9 +1280,18 @@ int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
}
}
if (iterable_only) {
goto flush;
}
return 0;
}
static
int qemu_savevm_state_complete_precopy_non_iterable(QEMUFile *f,
bool in_postcopy,
bool inactivate_disks)
{
QJSON *vmdesc;
int vmdesc_len;
SaveStateEntry *se;
int ret;
vmdesc = qjson_new();
json_prop_int(vmdesc, "page_size", qemu_target_page_size());
@ -1353,6 +1351,40 @@ int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
}
qjson_destroy(vmdesc);
return 0;
}
int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only,
bool inactivate_disks)
{
int ret;
Error *local_err = NULL;
bool in_postcopy = migration_in_postcopy();
if (precopy_notify(PRECOPY_NOTIFY_COMPLETE, &local_err)) {
error_report_err(local_err);
}
trace_savevm_state_complete_precopy();
cpu_synchronize_all_states();
ret = qemu_savevm_state_complete_precopy_iterable(f, in_postcopy,
iterable_only);
if (ret) {
return ret;
}
if (iterable_only) {
goto flush;
}
ret = qemu_savevm_state_complete_precopy_non_iterable(f, in_postcopy,
inactivate_disks);
if (ret) {
return ret;
}
flush:
qemu_fflush(f);
return 0;