On Tue, 20 Dec 2005, Jens Axboe wrote:
>
> There _was_ a bug in the SCSI layer, because it had logic like this:
>
> if (rq_data_dir(req) == WRITE)
> DMA_TO_DEVICE
> else if (req->data_len)
> DMA_FROM_DEVICE
> else
> DMA_NONE
>
> which was buggy, because for it to transfer data to the device, both the
> direction bit _and_ a data length must be set.
So this is fixed? Is that the iPod panic fix, or something else?
If so, I'll drop that patch (although the "allow_removal" part of it
sounds sane to me still.. comments?)
Linus
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