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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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=Br+QAIX5 c=1 sm=1 tr=0 ts=69a6c65f cx=c_pps a=AKZTfHrQPB8q3CcvmcIuDA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=pF_qn-MSjDawc0seGVz6:22 X-Proofpoint-ORIG-GUID: U-EJAEJWemKJSnB-vK85bldt0QWtxy9y X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDA4OSBTYWx0ZWRfXwbdIgdphBxv8 e6BdDvrCiIiBUglOgGgyVWRLANYbdkYeBRPNpPA/nOoH2wWl3k3aNgOckj9IH/qiaL9OsLLo4jm RZ4GgGmZNYewf5XUg/HhE+dlTVpnyADAJYHozfxoMJsR15GHZxdsEfNRPH8n2kYFeqdrwNiUWEE 0PFcCmQXTG4Ar4z1gOb5IP9FVUKc0b2DXp3WYr//N7iZWF1JB/sEYTeHB8Y4Oa6pt8jYhjmax8l jbN4+O7rwcGxaezoZZ5sL725JtXc//J2DbtG1Xt9kFbiw/V5KZXTibArAQGcUiB6gO3Bqp09OT5 Beti7yzMjb88DHqlurQ1WzbOCdAQY3NH65yQe0LnWTtRRGcy/ZB2B/joTyzi+5HWKygJqYZBl9G 0MQf1PONfHWTVDm6rsuLNvZGTs4Jl+2GZBIQmdOgsHgzqTQ+5vkyaqcGpqKUPC60I91yjH7NuIT n300oxiLCFJif6GpW4Q== X-Proofpoint-GUID: U-EJAEJWemKJSnB-vK85bldt0QWtxy9y 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 phishscore=0 malwarescore=0 clxscore=1015 bulkscore=0 spamscore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030089 Content-Type: text/plain; charset="utf-8" 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_balloo= n.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 *vd= ev) goto out_unregister_oom; } =20 + vb->pr_dev_info.order =3D PAGE_REPORTING_ORDER_UNSPECIFIED; + /* * The default page reporting order is @pageblock_order, which * corresponds to 512MB in size on ARM64 when 64KB base page --=20 2.34.1