cvs commit: src/sys/ufs/ffs ffs_alloc.c ffs_softdep.c

[Brian Somers]

brian       2007-02-23 20:23:36 UTC

  FreeBSD src repository

  Modified files:
    sys/ufs/ffs          ffs_alloc.c ffs_softdep.c 
  Log:
  Account for di_blocks allocations when IN_SPACECOUNTED is set in an
  inode's i_flag.
  
  It's possible that after ufs_infactive() calls softdep_releasefile(),
  i_nlink stays >0 for a considerable amount of time (> 60 seconds here).
  During this period, any ffs allocation routines that alter di_blocks
  must also account for the blocks in the filesystem's fs_pendingblocks
  value.
  
  This change fixes an eventual df/du discrepency that will happen as
  the result of fs_pendingblocks being reduced to <0.
  
  The only manifestation of this that people may recognise is the
  following message on boot:
  
      /somefs: update error: blocks -N files M
  
  at which point the negative pending block count is adjusted to zero.
  
  Reviewed by:    tegge
  MFC after:      3 weeks
  
  Revision  Changes    Path
  1.145     +28 -3     src/sys/ufs/ffs/ffs_alloc.c
  1.204     +4 -4      src/sys/ufs/ffs/ffs_softdep.c