Messages in this thread | | | Date | Mon, 14 Jul 2003 03:03:19 -0700 | From | William Lee Irwin III <> | Subject | Re: kmap_types.h (was: Re: Linux 2.4.22-pre3) |
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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.
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