xfs: factor out a helper to calculate the end_fsb

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We have lots of places that want to calculate the final fsb for
a offset + count in bytes and check that the result fits into
s_maxbytes.  Factor out a helper for that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
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 2019-10-19 09:09:44 -07:00 • committed by Darrick J. Wong

parent 36adcbace2

commit 43568226a4

1 changed files with 20 additions and 20 deletions

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fs/xfs/xfs_iomap.c

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