cvs commit: src/sys/netinet ip_output.c

Robert Watson rwatson at
Wed Dec 22 01:31:07 PST 2004

rwatson     2004-12-22 09:31:07 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_5)
    sys/netinet          ip_output.c 
  Merge ip_output.c:1.233 (and forced commit MFC reminder
  ip_output.c:1.234) from HEAD to RELENG_5:
    date: 2004/12/05 19:11:09;  author: rwatson;  state: Exp;  lines: +13 -10
    Start working through inpcb locking for ip_ctloutput() by cleaning up
    modifications to the inpcb IP options mbuf:
    - Lock the inpcb before passing it into ip_pcbopts() in order to prevent
      simulatenous reads and read-modify-writes that could result in races.
    - Pass the inpcb reference into ip_pcbopts() instead of the option chain
      pointer in the inpcb.
    - Assert the inpcb lock in ip_pcbots.
    - Convert one or two uses of a pointer as a boolean or an integer
      comparison to a comparison with NULL for readability.
  Revision   Changes    Path  +13 -10    src/sys/netinet/ip_output.c

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