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SubjectRe: Linux Buffer Cache Does Not Support Mirroring

Alan,

I'll try this.

Jeff

Alan Cox wrote:
>
> > I looked at the brw_page code. While everyone calls this an "async"
> > interface, in fact, it uses the same semantic as a sync interface and
> > does not allow support for callbacks.
>
> Its a function pointer. What else do you need other than passing a parameter
> void * or similar to get more flexibility.
>
> You can use the callback to wake a thread, you can schedule a task after
> IRQ completion, you can do stuff directly on the IRQ callback if you are
> careful about deadlocks.
>
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