From owner-cvs-all  Thu Sep 16 22:58: 1 1999
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From: Matt Dillon <dillon@FreeBSD.org>
Date: Thu, 16 Sep 1999 22:57:58 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/nfs nfs.h nfs_bio.c nfs_serv.c nfs_vnops.c
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dillon      1999/09/16 22:57:57 PDT

  Modified files:
    sys/nfs              nfs.h nfs_bio.c nfs_serv.c nfs_vnops.c 
  Log:
      Asynchronized client-side nfs_commit.  NFS commit operations were
      previously issued synchronously even if async daemons (nfsiod's) were
      available.  The commit has been moved from the strategy code to the doio
      code in order to asynchronize it.
  
      Removed use of lastr in preparation for removal of vnode->v_lastr.  It
      has been replaced with seqcount, which is already supported by the system
      and, in fact, gives us a better heuristic for sequential detection then
      lastr ever did.
  
      Made major performance improvements to the server side commit.  The
      server previously fsync'd the entire file for each commit rpc.  The
      server now bawrite()s only those buffers related to the offset/size
      specified in the commit rpc.
  
      Note that we do not commit the meta-data yet.  This works still needs
      to be done.
  
      Note that a further optimization can be done (and has not yet been done)
      on the client: we can merge multiple potential commit rpc's into a
      single rpc with a greater file offset/size range and greatly reduce
      rpc traffic.
  
  Reviewed by:	Alan Cox <alc@cs.rice.edu>, David Greenman <dg@root.com>
  
  Revision  Changes    Path
  1.49      +3 -1      src/sys/nfs/nfs.h
  1.78      +34 -4     src/sys/nfs/nfs_bio.c
  1.85      +73 -4     src/sys/nfs/nfs_serv.c
  1.141     +15 -12    src/sys/nfs/nfs_vnops.c



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