xfs: simplify mappedbno handling in xfs_da_{get,read}_buf

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Shortcut the creation of xfs_bmbt_irec and xfs_buf_map for the case
where the callers passed an already mapped xfs_daddr_t.  This is in
preparation for splitting these cases out entirely later.  Also reject
the mappedbno case for xfs_da_reada_buf as no callers currently uses
it and it will be removed soon.

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 2019-11-20 09:46:00 -08:00 • committed by Darrick J. Wong

parent 6519f708cc

commit fa0d44ec7f

1 changed files with 51 additions and 52 deletions

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103

fs/xfs/libxfs/xfs_da_btree.c

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