tree 115515bb474f7cc7c95f1d3ddbe96dd0ef38daac
parent 872f323612170574fe7fdfd1b98c54d09235abde
author Darrick J. Wong <djwong@kernel.org> 1706648669 -0800
committer Darrick J. Wong <djwong@kernel.org> 1711311552 -0700

xfs: support in-memory btrees

Adapt the generic btree cursor code to be able to create a btree whose
buffers come from a (presumably in-memory) buftarg with a header block
that's specific to in-memory btrees.  We'll connect this to other parts
of online scrub in the next patches.

Note that in-memory btrees always have a block size matching the system
memory page size for efficiency reasons.  There are also a few things we
need to do to finalize a btree update; that's covered in the next patch.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>