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David Alan Gilbert" , Eric Blake , Markus Armbruster , "Michael S . Tsirkin" , Stefan Hajnoczi Cc: Zhang Chen Subject: [PATCH V5 10/13] virtio-balloon: Update tracking iothread users with holder name Date: Thu, 5 Mar 2026 22:24:56 +0800 Message-ID: <20260305142459.52559-11-zhangckid@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260305142459.52559-1-zhangckid@gmail.com> References: <20260305142459.52559-1-zhangckid@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=zhangckid@gmail.com; helo=mail-pl1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1772720762309154100 Content-Type: text/plain; charset="utf-8" Replace raw object_ref/unref calls with iothread_get/put_aio_context. Signed-off-by: Zhang Chen --- hw/virtio/virtio-balloon.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 38bf1e84a1..4eeae48b50 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -895,14 +895,18 @@ static void virtio_balloon_device_realize(DeviceState= *dev, Error **errp) s->svq =3D virtio_add_queue(vdev, 128, virtio_balloon_receive_stats); =20 if (virtio_has_feature(s->host_features, VIRTIO_BALLOON_F_FREE_PAGE_HI= NT)) { + char *path =3D object_get_canonical_path(OBJECT(s)); + s->free_page_vq =3D virtio_add_queue(vdev, VIRTQUEUE_MAX_SIZE, virtio_balloon_handle_free_page= _vq); precopy_add_notifier(&s->free_page_hint_notify); =20 - object_ref(OBJECT(s->iothread)); - s->free_page_bh =3D aio_bh_new_guarded(iothread_get_aio_context(s-= >iothread), - virtio_ballloon_get_free_page= _hints, s, - &dev->mem_reentrancy_guard); + s->free_page_bh =3D aio_bh_new_guarded( + iothread_get_aio_context(s->iothread, path), + virtio_ballloon_get_free_page_hints, s, + &dev->mem_reentrancy_guard); + + g_free(path); } =20 if (virtio_has_feature(s->host_features, VIRTIO_BALLOON_F_REPORTING)) { @@ -922,10 +926,13 @@ static void virtio_balloon_device_unrealize(DeviceSta= te *dev) =20 qemu_unregister_resettable(OBJECT(dev)); if (s->free_page_bh) { + char *path =3D object_get_canonical_path(OBJECT(s)); + qemu_bh_delete(s->free_page_bh); - object_unref(OBJECT(s->iothread)); virtio_balloon_free_page_stop(s); + iothread_put_aio_context(s->iothread, path); precopy_remove_notifier(&s->free_page_hint_notify); + g_free(path); } balloon_stats_destroy_timer(s); qemu_remove_balloon_handler(s); --=20 2.49.0