This is an incremental step in converting vmstate loading code to report via Error objects instead of printing directly to the console/monitor.
Signed-off-by: Daniel P. Berrangé <[email protected]> --- include/migration/global_state.h | 2 +- migration/global_state.c | 6 +++--- migration/migration.c | 8 ++++++-- migration/savevm.c | 5 ++--- 4 files changed, 12 insertions(+), 9 deletions(-) diff --git a/include/migration/global_state.h b/include/migration/global_state.h index 945eb35d5b..eeade88ef8 100644 --- a/include/migration/global_state.h +++ b/include/migration/global_state.h @@ -16,7 +16,7 @@ #include "qapi/qapi-types-run-state.h" void register_global_state(void); -int global_state_store(void); +int global_state_store(Error **errp); void global_state_store_running(void); bool global_state_received(void); RunState global_state_get_runstate(void); diff --git a/migration/global_state.c b/migration/global_state.c index a33947ca32..36fda38aad 100644 --- a/migration/global_state.c +++ b/migration/global_state.c @@ -29,13 +29,13 @@ typedef struct { static GlobalState global_state; -int global_state_store(void) +int global_state_store(Error **errp) { if (!runstate_store((char *)global_state.runstate, sizeof(global_state.runstate))) { - error_report("runstate name too big: %s", global_state.runstate); + error_setg(errp, "runstate name too big: %s", global_state.runstate); trace_migrate_state_too_big(); - return -EINVAL; + return -1; } return 0; } diff --git a/migration/migration.c b/migration/migration.c index b9cf56e61f..395a1b10f5 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2811,6 +2811,7 @@ static int postcopy_start(MigrationState *ms) int64_t bandwidth = migrate_max_postcopy_bandwidth(); bool restart_block = false; int cur_state = MIGRATION_STATUS_ACTIVE; + Error *local_err = NULL; if (!migrate_pause_before_switchover()) { migrate_set_state(&ms->state, MIGRATION_STATUS_ACTIVE, MIGRATION_STATUS_POSTCOPY_ACTIVE); @@ -2821,9 +2822,10 @@ static int postcopy_start(MigrationState *ms) trace_postcopy_start_set_run(); qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); - global_state_store(); + global_state_store(&local_err); ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); if (ret < 0) { + error_report_err(local_err); goto fail; } @@ -3030,11 +3032,12 @@ static void migration_completion(MigrationState *s) int current_active_state = s->state; if (s->state == MIGRATION_STATUS_ACTIVE) { + Error *local_err = NULL; qemu_mutex_lock_iothread(); s->downtime_start = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); s->vm_was_running = runstate_is_running(); - ret = global_state_store(); + ret = global_state_store(&local_err); if (!ret) { bool inactivate = !migrate_colo_enabled(); @@ -3055,6 +3058,7 @@ static void migration_completion(MigrationState *s) qemu_mutex_unlock_iothread(); if (ret < 0) { + error_report_err(local_err); goto fail; } } else if (s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) { diff --git a/migration/savevm.c b/migration/savevm.c index 289a3d55bb..c18b7e6033 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2828,9 +2828,8 @@ bool save_snapshot(const char *name, bool overwrite, const char *vmstate, saved_vm_running = runstate_is_running(); - ret = global_state_store(); - if (ret) { - error_setg(errp, "Error saving global state"); + ret = global_state_store(errp); + if (ret < 0) { return false; } vm_stop(RUN_STATE_SAVE_VM); -- 2.29.2
