Re: [PATCH 0/4] block: update inserted/removed nodes from BlockRAMRegistrar

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Tue, Sep 30, 2025 at 04:45:51PM -0400, Stefan Hajnoczi wrote:
> This patch series fixes a bug in BlockRAMRegistrar: it currently doesn't react
> to block graph changes and newly inserted nodes lack RAMBlock information
> needed to map I/O buffers. This is important for vdpa-blk devices because they
> rely on the ability to map I/O buffers.
> 
> Stefan Hajnoczi (4):
>   block: add BdrvChildClass->propagate_attach/detach() callbacks
>   block: add blk_add_attach/detach_notifier() APIs
>   block: rename RAMBlockRegistrar->notifier field
>   block: update inserted/removed nodes from BlockRAMRegistrar
> 
>  include/block/block_int-common.h            |  11 ++
>  include/system/block-backend-global-state.h |   9 ++
>  include/system/block-ram-registrar.h        |   4 +-
>  block.c                                     |  56 +++++--
>  block/block-backend.c                       |  44 ++++++
>  block/block-ram-registrar.c                 |  75 ++++++++-
>  tests/unit/test-block-backend.c             | 164 ++++++++++++++++++++
>  7 files changed, 344 insertions(+), 19 deletions(-)

I need to send a v2 because I forgot to squash in a compiler warning
fix.

Stefan

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