Messages in this thread | | | Date | Thu, 05 Apr 2007 17:14:34 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH] Bugfix for VMI paravirt ops |
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Zachary Amsden wrote: > No, they are totally dependent. The reason interrupts are disabled is > to stop kmap_atomic in interrupt handlers. With the kmap_atomic_pte > changes, the whole interrupt disable jibberish goes away.
But kmap_atomic_pte is a special case of kmap_atomic for ptes. Interrupt routines can still use plain kmap_atomic for bouncebuffers and so on.
A more general patch would be to make kmap/unmap_atomic pv_ops, and then they can all be rolled together. I.e: check the type to see if special pte handling needs to happen, etc.
J
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