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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5614622812f47-464bb59b66fsm7354528b6e.10.2026.03.02.03.18.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2026 03:18:02 -0800 (PST) From: Yuvraj Sakshith To: akpm@linux-foundation.org, mst@redhat.com, david@kernel.org, jasowang@redhat.com, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com Cc: linux-mm@kvack.org, virtualization@lists.linux.dev, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, xuanzhuo@linux.alibaba.com, eperezma@redhat.com, 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 Subject: [PATCH v2 2/4] virtio_balloon: set unspecified page reporting order Date: Mon, 2 Mar 2026 03:17:55 -0800 Message-Id: <20260302111757.2191056-3-yuvraj.sakshith@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260302111757.2191056-1-yuvraj.sakshith@oss.qualcomm.com> References: <20260302111757.2191056-1-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=BI++bVQG c=1 sm=1 tr=0 ts=69a571ec 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=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=efpaJB4zofY2dbm2aIRb:22 X-Proofpoint-GUID: TlB9BxjRltVFQ6Q6MHyzLgGywk4OU4aw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAyMDA5MyBTYWx0ZWRfX8Vw4lw2YOCO6 btxBUWqiNOqw6Cu2c72avlu+ZRdu3SCSXNl30ZrtBruvEHZU0Z6mqUTDSKuY1W3+5Xb+HzZPcZX pFndH1ltIXlQ2fPUaN/TDlFNIkVQSvbuo1+NAAc7NE2A81jWAvFnS1Aq7WCqpE0X4qGA+sAV5KL H511+KQwt1lnWJi0qwXvN4YnXEXBOq7+untcJ5h3F0T8VL5wklBBawX7+3hHC4PCkGNWGQ++z0N PPs7jUU3G3OrCpfnzv/bYyGNq5xPU0qCerkoCZnyhHwqj2aBuXBdiRu1X3po9OmRRRGfBGaN4hW ZWO0IKJij8e0oANm9OYUsmLYaRCAT2jPe+y1LF29GXqD8pcLn8sbFNK91n4JjKG+AYwCdWo61P7 T6zOjmUcIR7/QzyyVHlOAidLlQCR7XFBeKGLzSB9keh4H7eZT082UJlNXagwFYh2NzrSu3ziCmw gVEA+i/2Pyp9dFTSn8g== X-Proofpoint-ORIG-GUID: TlB9BxjRltVFQ6Q6MHyzLgGywk4OU4aw 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_03,2026-02-27_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 bulkscore=0 phishscore=0 spamscore=0 adultscore=0 impostorscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603020093 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. Signed-off-by: Yuvraj Sakshith Acked-by: David Hildenbrand (Arm) --- 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