Messages in this thread | | | Date | Mon, 6 Mar 2006 21:07:36 -0500 | From | Benjamin LaHaise <> | Subject | Re: Status of AIO |
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On Tue, Mar 07, 2006 at 04:04:11AM +0200, Dan Aloni wrote: > This somehow resembles the scatter-gatter lists already used in some > subsystems such as the SCSI sg driver.
None of the iovecs are particularly special. What's special here is that particulars of the container make the fast path *cheap*.
> BTW you have to make these pages Copy-On-Write before this procedure > starts because you wouldn't want it to accidently fill the zero page, > i.e. the VM will have to supply a unique set of pages otherwise it > messes up.
No, that would be insanely expensive. There's no way this would be done transparently to the user unless we know that we're blocking until the transmit is complete.
-ben -- "Time is of no importance, Mr. President, only life is important." Don't Email: <dont@kvack.org>. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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