Hi all, I am trying to understand relations of root ZIO and children ZIO.
This is what I have understood.. Please correct me if I'm wrong. Usually whenever we want to do a series of IO operations like in sync thread. We create a root ZIO with zio_root(). Now this root ZIO becomes parent for every ZIO that we create while syncing the async data to disk (in dbuf_sync_leaf). All the child ZIO are issued using zio_nowait() After issuing all the children ZIO at the end we call zio_wait() on root ZIO. So the question that comes in my mind is that after zio_wait for root ZIO is over, are we guaranteed that all the children ZIO are complete.? complete in sense like block allocation and data write are done and io_done callback are complete. I may be wrong with my understanding. Please correct me. Thanks !!! Gaurav.
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