Re: current pointer question/suggestion

David S. Miller (davem@dm.cobaltmicro.com)
Wed, 15 Jul 1998 02:05:31 -0700


Date: Wed, 15 Jul 1998 10:46:08 +0200
From: Alexander Kjeldaas <astor@guardian.no>

This just occurred to me. Would it be possible to have current point
to a location within the kernel area that was mapped individually for
each task?

There are severe performance penalties for this technique on SMP, and
to a lesser extent on uniprocessors as well. This method is old hat
and was investigated by us a year or two ago, it was found to be
inferior to the current scheme.

Later,
David S. Miller
davem@dm.cobaltmicro.com

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