d_map_single - how should it work?

Reply: Konstantin Belousov : "Re: d_map_single - how should it work?"
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From: Marcin Cieslak <saper_at_saper.info>
Date: Wed, 25 Oct 2023 07:58:41 UTC

Hello,

is there any documentation for cdevsw methods?
I am interested in knowing how d_map_single should
be written.

Most specifically, I want to know if the driver
has a chance to track mmaped allocations on its own
(as far as I can see there unmap(2) does not call
any of the driver's methods).

Marcin