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From: Lawrence Stewart <lstewart@FreeBSD.org>
Date: Tue, 16 Nov 2010 07:57:56 +0000 (UTC)
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Subject: cvs commit: src/sys/netinet/cc cc.c
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lstewart    2010-11-16 07:57:56 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet/cc       cc.c 
  Log:
  SVN rev 215391 on 2010-11-16 07:57:56Z by lstewart
  
  On CC algorithm module unload, we walk the list of active TCP control blocks.
  Any found to be using the algorithm that is about to go away are switched back
  to NewReno to avoid leaving dangling pointers which would trigger a panic. For
  VIMAGE kernels, there is a list per vnet to walk, yet the implementation was
  only examining one of the vnet lists.
  
  Fix the implementation of the above feature for VIMAGE kernels by looping
  through all active TCP control blocks across all vnets.
  
  Sponsored by:   FreeBSD Foundation
  Tested by:      Mikolaj Golub <to.my.trociny at gmail com>
  Reviewed by:    bz (briefly)
  MFC after:      11 weeks
  
  Revision  Changes    Path
  1.3       +35 -24    src/sys/netinet/cc/cc.c