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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-67a1d603f31sm938666eaf.5.2026.03.03.01.33.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Mar 2026 01:33:47 -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 v3 2/5] virtio_balloon: set unspecified page reporting order Date: Tue, 3 Mar 2026 01:33:38 -0800 Message-Id: <20260303093341.2927482-3-yuvraj.sakshith@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260303093341.2927482-1-yuvraj.sakshith@oss.qualcomm.com> References: <20260303093341.2927482-1-yuvraj.sakshith@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDA3MSBTYWx0ZWRfX6RaIK23m+VKc Idv8N/DkkW6hsRiX538uak3N7384TGjT5P7DLPZY4rBZSw3a3qxE4Ytapw654igCnnUYSy1DdL8 2mklUEHrjFw7zt9fNFGlC16S/6t/Pf1URi0GA28SZ39COEeY3RUMBfwzQZXcE4U1a2Sy76U3XSu bbcT7a2S2vzdQ1prSarzxheOzzVBCuRAFkV5mRvzD4Ztd92RT9ji20mcAD3Rx6ovcYfAJ4ix3IU U3JPVGi40KDYpjf9xRNwTZsBqDqpAzEJPmXAm0DJSw32EWOXDOqHWrWwGdc3kJtyZ1e5KalJifA L90RV13zPcDTfZJbv/3r3iLGiVsdSx9V29Q5XjQDdgY65o+mzo4tdRczNnCBNmHTtVqGtBHt2bK Cqj12kX+eWGxgz8T9302jv3P9mIE0gOTa9i3WDX00/icdX0HjL5I7E0KjAkbdPEMAN0cR0/+E6L xtcbEIDjxxjZp0lBI+A== X-Proofpoint-ORIG-GUID: Tz9UDjufV7-llKy8hXnaxBaSQok0VIts X-Authority-Analysis: v=2.4 cv=S+HUAYsP c=1 sm=1 tr=0 ts=69a6aafc cx=c_pps a=V4L7fE8DliODT/OoDI2WOg==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=WZGXeFmKUf7gPmL3hEjn:22 X-Proofpoint-GUID: Tz9UDjufV7-llKy8hXnaxBaSQok0VIts 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 lowpriorityscore=0 bulkscore=0 suspectscore=0 clxscore=1015 spamscore=0 priorityscore=1501 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030071 X-Stat-Signature: nrbs6ef8kkkexq7dg83937tr4oyc3jg3 X-Rspam-User: X-Rspamd-Queue-Id: A687B8000D X-Rspamd-Server: rspam12 X-HE-Tag: 1772530429-987367 X-HE-Meta: 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 d4+5/H2A 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 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