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authorMark Fasheh <mark.fasheh@oracle.com>2007-03-07 16:46:57 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 15:02:37 -0700
commite48edee2d8eab812f31f0ff62c6ba635ca2e1e21 (patch)
tree6afb9fe59a06ce621cb11d570e432e7d739376ff /fs/ocfs2/extent_map.h
parent6af67d8205cf65fbaaa743edc7ebb46e486e34ff (diff)
ocfs2: make room for unwritten extents flag
Due to the size of our group bitmaps, we'll never have a leaf node extent record with more than 16 bits worth of clusters. Split e_clusters up so that leaf nodes can get a flags field where we can mark unwritten extents. Interior nodes whose length references all the child nodes beneath it can't split their e_clusters field, so we use a union to preserve sizing there. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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