Messages in this thread | | | Date | Fri, 21 Oct 2005 14:12:49 -0400 | From | Luben Tuikov <> | Subject | Re: ioctls, etc. (was Re: [PATCH 1/4] sas: add flag for locally attached PHYs) |
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On 10/21/05 14:04, Christoph Hellwig wrote: >>How about this: Why not as a char device? > > you can implement a char device using the block layer. See > drivers/scsi/{ch.c,osst.c,sg.c,st.c} for examples.
Christoph, you failed to see that my question was _rhetorical_.
> That beeing said I tried this approach. It looks pretty cool when you > think about it, but the block layer is quite a bit too heavyweight for > queueing up a few SMP requests, and we need to carry too much useless > code around for it.
That's the last reason not to implement SMP as a block device. But this is good that you tried it and it "flopped". This way people will stop repeating "SMP... block device".
Luben -- http://linux.adaptec.com/sas/ http://www.adaptec.com/sas/ - 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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