vfs: refactor clone/dedupe_file_range common functions

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Hoist both the XFS reflink inode state and preparation code and the XFS
file blocks compare functions into the VFS so that ocfs2 can take
advantage of it for reflink and dedupe.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Darrick J. Wong 2016-12-09 16:18:30 -08:00

parent a76b5b0437

commit 876bec6f9b

3 changed files with 219 additions and 204 deletions

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204

fs/read_write.c

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213

fs/xfs/xfs_reflink.c

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6

include/linux/fs.h

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