[lkml]   [2005]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 01/04] Adding cipher mode context information to crypto_tfm
Am Mittwoch, den 09.02.2005, 17:19 -0800 schrieb Andrew Morton:

> > It must be
> > possible to process more than 2 mappings in softirq context.
> Adding a few more fixmap slots wouldn't hurt anyone. But if you want an
> arbitrarily large number of them then no, we cannot do that.
> Possibly one could arrange for the pages to not be in highmem at all.

In the case of the LRW use in dm-crypt only plain- and ciphertext need
to be accessible through struct page (both are addressed through BIO
vectors). The LRW tweaks could simply be kmalloced. So instead of
passing "struct scatterlist *tweaksg" we could just pass a "void

Some of the hard work on the generic scatterlist walker would be for
nothing then. :(

[unhandled content-type:application/pgp-signature]
 \ /
  Last update: 2005-03-22 14:10    [W:0.147 / U:32.508 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site