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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d59785d8d5sm9311790a34.17.2026.03.03.03.30.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Mar 2026 03:30:37 -0800 (PST) From: Yuvraj Sakshith To: mst@redhat.com, david@kernel.org Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, longli@microsoft.com, jasowang@redhat.com, xuanzhuo@linux.alibaba.com, eperezma@redhat.com, akpm@linux-foundation.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, jackmanb@google.com, hannes@cmpxchg.org, ziy@nvidia.com, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, linux-mm@kvack.org Subject: [PATCH v4 2/5] virtio_balloon: set unspecified page reporting order Date: Tue, 3 Mar 2026 03:30:29 -0800 Message-Id: <20260303113032.3008371-3-yuvraj.sakshith@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260303113032.3008371-1-yuvraj.sakshith@oss.qualcomm.com> References: <20260303113032.3008371-1-yuvraj.sakshith@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=JaexbEKV c=1 sm=1 tr=0 ts=69a6c65f cx=c_pps a=yymyAM/LQ7lj/HqAiIiKTw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=efpaJB4zofY2dbm2aIRb:22 X-Proofpoint-ORIG-GUID: JxFeQsbjN5wgyMim6wWxCozbOm2UavPZ X-Proofpoint-GUID: JxFeQsbjN5wgyMim6wWxCozbOm2UavPZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDA4OSBTYWx0ZWRfX7flL8sxZ/jg9 IgtzimzC3m+AIBuzHYw5s/cIG50dDFi5fXLA2lltaK3RwJimV4Jg6s3k566Q6q9VjHrz0Yvt7n3 po3oOGzcnzwjsqQj8X2JRveMe8BuQ9MOVKBC6jwJsh1w0Ipcg1MDNEZ30PbPkZ7xex+CBveZ2nk WsE8PcGKry/CoOknQrXDgXMUYe85NjiUSF+cAFWtZVogCBDbK7MllWaALaC8AdcZxiQ9mysLSqC Aq04MQIIFbBD4trruzBd3TloR0cVVF/gEMATv2TDbiZNPRkxxYl5p7qDvyyrypBLA1xgfBaGkNj kDCCiiLZjwfQOXw1BAU3TcWwO4tOp3iUEQtCpH7f5CWpFk5T420e9dUvaQ5qz6240EFLmWtZ7/J 6HKz0G+++VBHtHSB7RfO3HMxNWEDiTkTOxsVbK4TNlqKfgbqJEmNRWsZFDPhHwrsCfgzJXqMpDo l4yzVWDKwPuwVPHWoJg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-02_05,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 priorityscore=1501 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030089 X-Stat-Signature: cic91t58nsb6ghi9t4nsz8w33su3z9d1 X-Rspam-User: X-Rspamd-Queue-Id: 474E31A0012 X-Rspamd-Server: rspam12 X-HE-Tag: 1772537440-174270 X-HE-Meta: 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 jc1BYd+e EDCRfNvRFG6AFAIpBQlln6yj0pP1UMRkRk5hJGm6Ptnjv+obJS+Vdfu6gLGJnMp6WBbzkRT6oKBHKRMRuV/IL3HQyu8ioPbHHumjygkWERxctA87CCmVshYbwgNPcgKZN7nlE3aiB/2zK/+jTr3PIRL9CMkv4gRlKJlFPUApWcgg/rjVfMpvJJIenQ4DabZ9hgPf+Hev0flAEy526luhVS5kUTkaYiOW3H/1oaCnSKTNXNxdgeGx9/F6PHNbZW8fqRDJIEeKeIGvMPumZQ6RUtUx65IRMfouq9Oqs/VuqnJpORCAWGBd+S/B+bffsqYQ9FK7//flPvrQ8RINiJQVYpvsdx698k6de4ugofC7nu02dhsfAQyYEFW4aQZVlWz+EL9NFEzHxjPidRZPZadeylH/a+p2Hlrb7L7DRdjFJW+6ZX/aAXN7CZMbLYe6YnUl3c7EXgpCOh4hEMrtFPE1TJ5ST3y8noAbuNqxreoNIMlAYwU1Pp7fckNHq5/RC1QvQNad5D5v0c8IrCgDJ1sCqy4mkIw6Z2VpVpcO7lrtT5oh+dGKlF2qSoXfBTtkXZTGi7VU5FQ0mPy6HIblRw8HIVqhoTg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: virtio_balloon page reporting order is set to MAX_PAGE_ORDER implicitly as vb->prdev.order is never initialised and is auto-set to zero. Explicitly mention usage of default page order by making use of PAGE_REPORTING_ORDER_UNSPECIFIED fallback value. Acked-by: David Hildenbrand (Arm) Signed-off-by: Yuvraj Sakshith --- drivers/virtio/virtio_balloon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 74fe59f5a..2dfe2bcd8 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -1044,6 +1044,8 @@ static int virtballoon_probe(struct virtio_device *vdev) goto out_unregister_oom; } + vb->pr_dev_info.order = PAGE_REPORTING_ORDER_UNSPECIFIED; + /* * The default page reporting order is @pageblock_order, which * corresponds to 512MB in size on ARM64 when 64KB base page -- 2.34.1