cvs commit: src/sys/contrib/pf/net pf.c src/sys/netinet ip_fw2.c

[Robert Watson]

rwatson     2008-04-20 00:21:54 UTC

  FreeBSD src repository

  Modified files:
    sys/contrib/pf/net   pf.c 
    sys/netinet          ip_fw2.c 
  Log:
  Teach pf and ipfw to use read locks in inpcbs write than write locks
  when reading credential data from sockets.
  
  Teach pf to unlock the pcbinfo more quickly once it has acquired an
  inpcb lock, as the inpcb lock is sufficient to protect the reference.
  
  Assert locks, rather than read locks or write locks, on inpcbs in
  subroutines--this is necessary as the inpcb may be passed down with a
  write lock from the protocol, or may be passed down with a read lock
  from the firewall lookup routine, and either is sufficient.
  
  MFC after:      3 months
  
  Revision  Changes    Path
  1.53      +5 -6      src/sys/contrib/pf/net/pf.c
  1.185     +3 -3      src/sys/netinet/ip_fw2.c