From 687433f61173a9ed80609f16f8bc4b9255bd815c Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 25 Sep 2017 12:29:16 +0100 Subject: [PATCH] migration: Route errors up through vmstate_save Route the errors from vsmtate_save_state back up through vmstate_save and out to the normal device state path. That's the normal error path done. Signed-off-by: Dr. David Alan Gilbert Message-Id: <20170925112917.21340-6-dgilbert@redhat.com> Reviewed-by: Peter Xu Reviewed-by: Cornelia Huck Reviewed-by: Juan Quintela Signed-off-by: Dr. David Alan Gilbert --- migration/savevm.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/migration/savevm.c b/migration/savevm.c index e9feade46a..4a88228614 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -768,14 +768,14 @@ static void vmstate_save_old_style(QEMUFile *f, SaveStateEntry *se, QJSON *vmdes } } -static void vmstate_save(QEMUFile *f, SaveStateEntry *se, QJSON *vmdesc) +static int vmstate_save(QEMUFile *f, SaveStateEntry *se, QJSON *vmdesc) { trace_vmstate_save(se->idstr, se->vmsd ? se->vmsd->name : "(old)"); if (!se->vmsd) { vmstate_save_old_style(f, se, vmdesc); - return; + return 0; } - vmstate_save_state(f, se->vmsd, se->opaque, vmdesc); + return vmstate_save_state(f, se->vmsd, se->opaque, vmdesc); } /* @@ -1171,7 +1171,11 @@ int qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only, json_prop_int(vmdesc, "instance_id", se->instance_id); save_section_header(f, se, QEMU_VM_SECTION_FULL); - vmstate_save(f, se, vmdesc); + ret = vmstate_save(f, se, vmdesc); + if (ret) { + qemu_file_set_error(f, ret); + return ret; + } trace_savevm_section_end(se->idstr, se->section_id, 0); save_section_footer(f, se); @@ -1313,6 +1317,8 @@ static int qemu_save_device_state(QEMUFile *f) cpu_synchronize_all_states(); QTAILQ_FOREACH(se, &savevm_state.handlers, entry) { + int ret; + if (se->is_ram) { continue; } @@ -1325,7 +1331,10 @@ static int qemu_save_device_state(QEMUFile *f) save_section_header(f, se, QEMU_VM_SECTION_FULL); - vmstate_save(f, se, NULL); + ret = vmstate_save(f, se, NULL); + if (ret) { + return ret; + } save_section_footer(f, se); }