cvs commit: src/sys/netgraph ng_bpf.c

Alexander Motin mav at
Thu Jul 26 18:15:03 UTC 2007

mav         2007-07-26 18:15:02 UTC

  FreeBSD src repository

  Modified files:
    sys/netgraph         ng_bpf.c 
  Reduce stack usage by 256 bytes per call. It helps to avoid kernel
  stack overflow in complicated traffic filtering setups.
  There can be minor performance degradation for the MHLEN < len <= 256 case
  due to additional buffer allocation, but it is a rare case.
  Approved by:    re (rwatson), glebius (mentor)
  MFC after:      1 week
  Revision  Changes    Path
  1.22      +11 -5     src/sys/netgraph/ng_bpf.c

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