From: Markus Armbruster <armbru@redhat.com>
To: Zhang Chen <zhangckid@gmail.com>
Cc: qemu-devel <qemu-devel@nongnu.org>,
"Eric Blake" <eblake@redhat.com>,
"'Michael S . Tsirkin'" <mst@redhat.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"'Daniel P . Berrangé'" <berrange@redhat.com>,
"Jason Wang" <jasowangio@gmail.com>
Subject: Re: [PATCH V12 03/15] iothread: track users with holder name
Date: Mon, 24 Aug 2026 08:41:39 +0200 [thread overview]
Message-ID: <87a4qcvx3w.fsf@pond.sub.org> (raw)
In-Reply-To: <20260814174830.1691540-4-zhangckid@gmail.com> (Zhang Chen's message of "Sat, 15 Aug 2026 01:48:17 +0800")
Zhang Chen <zhangckid@gmail.com> writes:
> 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>
Does this add tracking, or just the tracking infrastructure?
If the latter, the subject is misleading.
next prev parent reply other threads:[~2026-08-24 7:24 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-14 17:48 [PATCH V12 00/15] iothread: Support tracking and querying IOThread holders Zhang Chen
2026-08-14 17:48 ` [PATCH V12 01/15] qapi/misc: Fix missed query-iothreads items Zhang Chen
2026-08-14 17:48 ` [PATCH V12 02/15] iothread: introduce holder tracking Zhang Chen
[not found] ` <20260819182509.GC222512@fedora>
2026-08-21 9:02 ` Zhang Chen
2026-08-14 17:48 ` [PATCH V12 03/15] iothread: track users with holder name Zhang Chen
2026-08-18 20:31 ` Stefan Hajnoczi
2026-08-24 6:41 ` Markus Armbruster [this message]
2026-08-24 8:50 ` Zhang Chen
2026-08-14 17:48 ` [PATCH V12 04/15] iothread: introduce iothread_unsafe_get_aio_context() Zhang Chen
2026-08-14 17:48 ` [PATCH V12 05/15] block/export: track IOThread references Zhang Chen
2026-08-18 20:49 ` Stefan Hajnoczi
2026-08-19 18:31 ` Stefan Hajnoczi
2026-08-21 9:59 ` Zhang Chen
2026-08-14 17:48 ` [PATCH V12 06/15] monitor: track IOThread users with QOM paths Zhang Chen
2026-08-19 19:12 ` Stefan Hajnoczi
2026-08-22 20:14 ` Zhang Chen
2026-08-14 17:48 ` [PATCH V12 07/15] virtio-vq-mapping: track iothread-vq-mapping references using device path Zhang Chen
2026-08-19 19:16 ` Stefan Hajnoczi
2026-08-21 14:11 ` Zhang Chen
2026-08-14 17:48 ` [PATCH V12 08/15] virtio: track IOThread references for thread pinning Zhang Chen
2026-08-14 17:48 ` [PATCH V12 09/15] net/colo: track IOThread references using path-based holder Zhang Chen
2026-08-14 17:48 ` [PATCH V12 10/15] virtio-balloon: Update tracking iothread users with holder Zhang Chen
2026-08-14 17:48 ` [PATCH V12 11/15] vfio-user/proxy: Update tracking iothread users with holder name Zhang Chen
2026-08-14 17:48 ` [PATCH V12 12/15] xen-block: " Zhang Chen
2026-08-14 17:48 ` [PATCH V12 13/15] monitor/hmp: display IOThread holders Zhang Chen
2026-08-20 8:17 ` Markus Armbruster
2026-08-22 21:04 ` Zhang Chen
2026-08-24 6:55 ` Markus Armbruster
2026-08-24 9:19 ` Zhang Chen
2026-08-25 8:30 ` Markus Armbruster
2026-08-14 17:48 ` [PATCH V12 14/15] iothread: remove legacy iothread_get_aio_context() Zhang Chen
2026-08-14 17:48 ` [PATCH V12 15/15] tests/unit/iothread: update AioContext ref/put helpers Zhang Chen
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