Re: [RFC PATCH V2 09/13] block: use per-task poll context to implement bio based io poll

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Well, when it will failover, it will probably be directed to the poll
queues. Maybe I'm missing something...

In this patchset, because it isn't submitted directly from FS, there
isn't one polling context associated with this bio, so its HIPRI flag
will be cleared, then fallback to irq mode.

I think that's fine for failover I/O...

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