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    ocfs2: Add directory block trailers. · 87d35a74
    Mark Fasheh 提交于
    Future ocfs2 features metaecc and indexed directories need to store a
    little bit of data in each dirblock.  For compatibility, we place this
    in a trailer at the end of the dirblock.  The trailer plays itself as an
    empty dirent, so that if the features are turned off, it can be reused
    without requiring a tunefs scan.
    
    This code adds the trailer and validates it when the block is read in.
    
    [ Mark is the original author, but I reinserted this code before his
      dir index work.  -- Joel ]
    Signed-off-by: NJoel Becker <joel.becker@oracle.com>
    Signed-off-by: NMark Fasheh <mfasheh@suse.com>
    87d35a74
ocfs2.h 16.8 KB