K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2005-03-10T14:36:35.000000Z
K 7
svn:log
V 1003
Merge ipx_input.c:1.48, spx_srreq.c:1.61 from HEAD to RELENG_5:

  Use the IPX PCB list mutex and IPX PCB mutexes to lock down the SPX
  portion of IPX/SPX:

  - Protect IPX PCB lists with the IPX PCB list mutex, in particular
    when calling PCB and PCB list manipulation routines in ipx_pcb.c.
  - Protect both IPX PCB state and SPX PCB state using the IPX PCB
    mutex.
  - Generally annotate locking, as well as adding liberal use of lock
    assertions to document locking requirements.
  - Where possible, use unlocked reads when reading integer or smaller
    sized socket options on SPX sockets.
  - De-spl throughout.

  Notes:

  - spx_input() expects both the list mutex and PCB mutex to be held
    on entry, but will release both on return.  Because sonewconn() is
    called from spx_input(), it may actually drop one PCB lock and
    acquire another during generation of a new connection, meaning the
    caller is not in a position to unlock the PCB mutex.

Approved by:	re (kensmith)

END