cvs commit: src/sys/sys proc.h src/sys/ufs/ffs ffs_softdep.c

[David Schultz]

das         2005-03-25 17:30:31 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              proc.h 
    sys/ufs/ffs          ffs_softdep.c 
  Log:
  When the softupdates worklist gets too long, threads that attempt to
  add more work are forced to process two worklist items first.
  However, processing an item may generate additional work, causing the
  unlucky thread to recursively process the worklist.  Add a per-thread
  flag to detect this situation and avoid the recursion.  This should
  fix the stack overflows that could occur while removing large
  directory trees.
  
  Tested by:      kris
  Reviewed by:    mckusick
  
  Revision  Changes    Path
  1.422     +1 -0      src/sys/sys/proc.h
  1.179     +5 -2      src/sys/ufs/ffs/ffs_softdep.c