Re: [PATCH V12 03/15] iothread: track users with holder name

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Sat, Aug 15, 2026 at 01:48:17AM +0800, Zhang Chen wrote:
> Introduce iothread_ref_and_get_aio_context() with a holder argument
> and its counterpart iothread_unref_and_put_aio_context().
> 
> Previously, users of an IOThread AioContext did not explicitly record
> their identity, making it difficult to debug which devices or
> subsystems were pinning an IOThread.
> 
> Registering a holder takes an IOThread object reference so that the
> IOThread and its AioContext stay alive until the matching put
> operation. Document the ownership and BQL requirements.
> 
> Signed-off-by: Zhang Chen <zhangckid@gmail.com>
> ---
>  include/system/iothread.h | 22 ++++++++++++++++++++++
>  iothread.c                | 24 +++++++++++++++++++++++-
>  2 files changed, 45 insertions(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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