Re: kmap_types.h (was: Re: Linux 2.4.22-pre3)

William Lee Irwin III (
Mon, 14 Jul 2003 03:03:19 -0700

On Sat, 5 Jul 2003, Marcelo Tosatti wrote:
>> o [CRYPTO-2.4]: Add dummy kmap_types.h header for sparc64

On Mon, Jul 14, 2003 at 11:55:40AM +0200, Geert Uytterhoeven wrote:
> What are the actual purpose and semantics of the KM_* types? I need to add them
> for m68k to make crypto compile.
> Gr{oetje,eeting}s,
> Geert

They're per-cpu virtualspace reservations for predetermined purposes.
It's for a variant of kmap() usable under spinlocks and in interrupt
handlers. If you don't have highmem, you just don't care.

-- wli
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