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3 Commits

Author SHA1 Message Date
Darrick J. Wong
33ba612920 xfs: connect refcount adjust functions to upper layers 
Plumb in the upper level interface to schedule and finish deferred
refcount operations via the deferred ops mechanism.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
 2016-10-03 09:11:22 -07:00
Darrick J. Wong
3172725814 xfs: adjust refcount of an extent of blocks in refcount btree 
Provide functions to adjust the reference counts for an extent of
physical blocks stored in the refcount btree.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
 2016-10-03 09:11:21 -07:00
Darrick J. Wong
bdf28630b7 xfs: add refcount btree operations 
Implement the generic btree operations required to manipulate refcount
btree blocks.  The implementation is similar to the bmapbt, though it
will only allocate and free blocks from the AG.

Since the refcount root and level fields are separate from the
existing roots and levels array, they need a separate logging flag.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
[hch: fix logging of AGF refcount btree fields]
Signed-off-by: Christoph Hellwig <hch@lst.de>
 2016-10-03 09:11:19 -07:00