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Date:      Fri, 13 Aug 1999 09:29:28 -0700 (PDT)
From:      Poul-Henning Kamp <phk@FreeBSD.org>
To:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   cvs commit: src/sys/miscfs/specfs spec_vnops.c src/sys/sys conf.h
Message-ID:  <199908131629.JAA74524@freefall.freebsd.org>
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phk         1999/08/13 09:29:28 PDT

  Modified files:
    sys/miscfs/specfs    spec_vnops.c 
    sys/sys              conf.h 
  Log:
  Add support for device drivers which want to track all open/close
  operations.  This allows a device driver better insight into
  what is going on that the current:
  
          proc1:  open /dev/foo R/O
                          devsw->open( R/O, proc1 )
          proc2:  open /dev/foo R/W
                          devsw->open( R/W, proc2 )
          proc2:  close
                          /* nothing, but device is
                             really only R/O open */
          proc1:  close
                          devsw->close( R/O, proc1 )
  
  Revision  Changes    Path
  1.95      +18 -59    src/sys/miscfs/specfs/spec_vnops.c
  1.72      +3 -2      src/sys/sys/conf.h



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