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migration/vmstate: Introduce vmstate_save_state_with_err

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Currently, a few code paths exist in the function vmstate_save_state_v,
which ultimately leads to a migration failure. However, an update in the
current MigrationState for the error description is never done.

vmstate.c somehow doesn't seem to allow	the use	of migrate_set_error due
to some	dependencies for unit tests. Hence, this patch introduces a new
function vmstate_save_state_with_err, which will eventually propagate
the error message to savevm.c where a migrate_set_error	call can be
eventually done.

Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Tejus GK <tejus.gk@nutanix.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231003065538.244752-2-tejus.gk@nutanix.com>
This commit is contained in:
Tejus GK 2023-10-03 06:55:37 +00:00 • committed by Juan Quintela
parent da1034094d
commit 969298f9d7
3 changed files with 13 additions and 5 deletions
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2
migration/savevm.c
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@ -1000,7 +1000,7 @@ static int vmstate_save(QEMUFile *f, SaveStateEntry *se, JSONWriter *vmdesc)
if (!se->vmsd) {
vmstate_save_old_style(f, se, vmdesc);
} else {
ret = vmstate_save_state(f, se->vmsd, se->opaque, vmdesc);
ret = vmstate_save_state_with_err(f, se->vmsd, se->opaque, vmdesc, &local_err);
if (ret) {
return ret;
}