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migration: never fail in global_state_store()

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Actually global_state_store() can never fail. Let's get rid of extra
error paths.

To make things clear, use new runstate_get() and use same approach for
global_state_store() and global_state_store_running().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230517123752.21615-3-vsementsov@yandex-team.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2023-05-17 15:37:49 +03:00 • committed by Juan Quintela
parent 242b74eb69
commit c33f1829f8
4 changed files with 32 additions and 40 deletions
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6
migration/savevm.c
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@ -2919,11 +2919,7 @@ 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");
return false;
}
global_state_store();
vm_stop(RUN_STATE_SAVE_VM);
bdrv_drain_all_begin();