Messages in this thread | | | Subject | Re: Proposal for kernel change | Date | Mon, 24 Jan 2000 14:14:09 +0000 (GMT) | From | Alan Cox <> |
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> > read and write sometimes lock and DMA from user pages in new driver toys > > using Stephen's rawio and kiovec stuff. You would need to be careful how > > you arranged it to avoid shooting yourself in the foot on future optimisations > > Ouch... And what happens if we do write() _not_ from user page? I can't > think of a place that would write to character device from kernel space, > but...
I can't at the moment but it would be bad to preclude it.
Alan
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