Jason wrote:
> Any recommendations on where to start hacking? Would
> it be a good idea to add O_DIRECT to a mmaped PCI space?
> The kernel should not be doing any buffering whatsoever,
> as we will be coming close to filling the pci bus up
> with transfers from direct disk->fb already. (We are
> already doing buffering on the FB card as well)
Jason,
Here is a less general solution that I worked on some
time ago involving the scsi generic driver.
http://www.torque.net/sg/mem2disk.html
It worked ok for one application in the early 2.4 series.
Doug Gilbert
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This archive was generated by hypermail 2b29 : Sun Dec 15 2002 - 22:00:31 EST