xfs: allow merging ioends over append boundaries

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There is no real problem merging ioends that go beyond i_size into an
ioend that doesn't.  We just need to move the append transaction to the
base ioend.  Also use the opportunity to use a real error code instead
of the magic 1 to cancel the transactions, and write a comment
explaining the scheme.

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 2019-06-28 19:31:37 -07:00 • committed by Darrick J. Wong

parent 0290d9c1e5

commit 7dbae9fbde

1 changed files with 21 additions and 7 deletions

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fs/xfs/xfs_aops.c

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