Re: [PATCH/RFC 2.6.20-rc4 1/1] fbdev, mm: hecuba/E-Ink fbdev driver

On 1/12/07, Nick Piggin [off-list ref] wrote:

Jaya Kumar wrote:

quoted

- write so get page_mkwrite where we add this page to a list
- also schedules a workqueue task to be run after a delay
- app continues writing to that page with no additional cost
- the workqueue task comes in and unmaps the pages on the list, then
 completes the work associated with updating the framebuffer

Have you thought about implementing a traditional write-back cache using
the dirty bits, rather than unmapping the page?

Ah, sorry, I erred in my description. I'm not unmapping pages, I'm
calling page_mkclean which uses the dirty bits.

Thanks,
jaya

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