K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2004-03-22T15:43:14.000000Z
K 7
svn:log
V 534
Lock down global variables in if_gif:

- Add gif_mtx, which protects globals.
- Hold gif_mtx around manipulation of gif_softc_list.
- Abstract gif destruction code into gif_destroy(), which tears down
  a softc after it's been removed from the global list by either module
  unload or clone destroy.
- Lock gif_called, even though we know gif_called is broken with reentrant
  network processing.
- Document an event ordering problem in gif_set_tunnel() that will need
  to be fixed.

gif_softc fields not locked down in this commit.

END