xfs: merge COW handling into xfs_file_iomap_begin_delay

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Besides simplifying the code a bit this allows to actually implement
the behavior of using COW preallocation for non-COW data mentioned
in the current comments.

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

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Christoph Hellwig 2019-02-18 09:38:47 -08:00 • committed by Darrick J. Wong

parent 12df89f28f

commit db46e604ad

4 changed files with 94 additions and 111 deletions

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133

fs/xfs/xfs_iomap.c

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67

fs/xfs/xfs_reflink.c

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2

fs/xfs/xfs_reflink.h

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3

fs/xfs/xfs_trace.h

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