xfs: introduce reflink utility functions

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These functions will be used by the other reflink functions to find
the maximum length of a range of shared blocks.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.coM>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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Darrick J. Wong 2016-10-03 09:11:25 -07:00

parent d0e853f360

commit 350a27a6a6

2 changed files with 106 additions and 0 deletions

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102

fs/xfs/libxfs/xfs_refcount.c

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4

fs/xfs/libxfs/xfs_refcount.h

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