xfs: refactor xfs_reflink_find_shared

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Move lookup of the perag structure from the callers into the helpers,
and return the offset into the extent of the shared region instead of
the block number that needs post-processing.  This prepares the
callsites for the creation of an rt-specific variant in the next patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
[djwong: port to the middle of the rtreflink series for cleanliness]
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>

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Christoph Hellwig 2024-11-20 16:20:54 -08:00 • committed by Darrick J. Wong

parent f0415af60f

commit 4e87047539

2 changed files with 50 additions and 62 deletions

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110

fs/xfs/xfs_reflink.c

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2

fs/xfs/xfs_reflink.h

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