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From: Jeff Roberson <jeff@FreeBSD.org>
Date: Mon, 4 Jul 2011 20:53:55 +0000 (UTC)
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Subject: cvs commit: src/sys/ufs/ffs ffs_softdep.c
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jeff        2011-07-04 20:53:55 UTC

  FreeBSD src repository

  Modified files:
    sys/ufs/ffs          ffs_softdep.c 
  Log:
  SVN rev 223770 on 2011-07-04 20:53:55Z by jeff
  
   - It is impossible to run request_cleanup() while doing a copyonwrite.
     This will most likely cause new block allocations which can recurse
     into request cleanup.
   - While here optimize the ufs locking slightly.  We need only acquire and
     drop once.
   - process_removes() and process_truncates() also is only needed once.
   - Attempt to flush each item on the worklist once but do not loop forever
     if some can not be completed.
  
  Discussed with: mckusick
  
  Revision  Changes    Path
  1.283     +21 -25    src/sys/ufs/ffs/ffs_softdep.c