K 10
svn:author
V 8
lstewart
K 8
svn:date
V 27
2009-08-13T13:17:50.469194Z
K 7
svn:log
V 602
Import variable length ALQ(9) work from my user branch/SIFTR development
repository. This is a prerequisite for importing SIFTR into the tree.

This patch allows the ALQ(9) framework to be compiled as a kernel module. It
also extends the KPI to support logging variable length messages by replacing
the underlying storage with a circular byte based buffer and adding new
alq_writen/alq_getn functions.

Some additional minor structural work is required to remove the patch's current
use of malloc in alq_getn.

Sponsored by:	FreeBSD Foundation
Discussed with:	jeff@, rwatson@ (quite some time ago now)

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