xfs: fix double ijoin in xfs_reflink_cancel_cow_range

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xfs_reflink_cancel_cow_range joins an inode twice to the same
transaction.  This is not allowed, so fix it and document that the
callers of xfs_reflink_cancel_cow_blocks() must have already joined the
inode to the permanent transaction passed in.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
[darrick: edited the commit log to remove trace for nonexistent ASSERT]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Dave Chinner 2018-05-09 07:49:09 -07:00 • committed by Darrick J. Wong

parent 3565b660e5

commit c5295c6aad

1 changed files with 4 additions and 2 deletions

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fs/xfs/xfs_reflink.c

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