cvs commit: src/sys/kern uipc_usrreq.c

[Robert Watson]

rwatson     2007-05-08 08:32:30 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/kern             uipc_usrreq.c 
  Log:
  Merge uipc_usrreq.c:1.171 from HEAD to RELENG_6:
  
    Reduce periods of simultaneous acquisition of various socket buffer
    locks and the unplock during uipc_rcvd() and uipc_send() by caching
    certain values from one structure while its locks are held, and
    applying them to a second structure while its locks are held.  If
    done carefully, this should be correct, and will reduce the amount
    of work done with the global unp lock held.
  
    Tested by:      kris (earlier version)
  
  Revision    Changes    Path
  1.155.2.12  +24 -18    src/sys/kern/uipc_usrreq.c