Lock down IP-layer encapsulation library:

 - Add encapmtx to protect ip_encap.c global variables (encapsulation
   list).
 - Unifdef #ifdef 0 pieces of encap_init() which was (and now really
   is) basically a no-op.
 - Lock encapmtx when walking encaptab, modifying it, comparing
   entries, etc.
 - Remove spl's.

Note that currently there's no facilite to make sure outstanding
use of encapsulation methods on a table entry have drained bfore
we allow a table entry to be removed.  As such, it's currently the
caller's responsibility to make sure that draining takes place.

Reviewed by:	mlaier

0 files changed, 0 insertions, 0 deletions