Re: query regarding 'map_user_kiobuf'

From: David Woodhouse (dwmw2@infradead.org)
Date: Wed May 30 2001 - 10:37:50 EST

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csbwaddington@att.net said:
> I have a couple of user DMA drivers up and running, but in light of
> your comment, I am not so sure.

I'm sorry, it seems I lied. Although map_user_kiobuf in 2.2 used to lock
the pages, apparently that's no longer necessary. You just need to make
sure they're marked dirty before you unmap the kiobuf.

-- dwmw2

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