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Author SHA1 Message Date
Tristan Ye 53069d4e76 Ocfs2/move_extents: move/defrag extents within a certain range. 
the basic logic of moving extents for a file is pretty like punching-hole
sequence, walk the extents within the range as user specified, calculating
an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to
do the actual moving.

This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation
gets done successfully.

Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
 2011-05-25 15:17:12 +08:00
Tristan Ye 028ba5df63 Ocfs2/move_extents: Add basic framework and source files for extent moving. 
Adding new files move_extents.[c|h] and fill it with nothing but
only a context structure.

Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
 2011-05-25 15:17:08 +08:00