Jason Miu 6b0dd42d76 kho: remove finalize state and clients ...

Eliminate the `kho_finalize()` function and its associated state from the
KHO subsystem.  The transition to a radix tree for memory tracking makes
the explicit "finalize" state and its serialization step obsolete.

Remove the `kho_finalize()` and `kho_finalized()` APIs and their stub
implementations.  Update KHO client code and the debugfs interface to no
longer call or depend on the `kho_finalize()` mechanism.

Complete the move towards a stateless KHO, simplifying the overall design
by removing unnecessary state management.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Jason Miu <[email protected]>
Reviewed-by: Pasha Tatashin <[email protected]>
Reviewed-by: Mike Rapoport (Microsoft) <[email protected]>
Cc: Alexander Graf <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Changyuan Lyu <[email protected]>
Cc: David Matlack <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Pratyush Yadav <[email protected]>
Cc: Ran Xiaokai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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abi.rst

kho: adopt radix tree for preserved memory tracking

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index.rst

kho: remove finalize state and clients

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