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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d5866269a8sm4324502a34.13.2026.02.27.06.07.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Feb 2026 06:07:03 -0800 (PST) From: Yuvraj Sakshith To: akpm@linux-foundation.org Cc: mst@redhat.com, david@kernel.org, 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, 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, virtualization@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 2/4] virtio_balloon: set default page reporting order Date: Fri, 27 Feb 2026 06:06:53 -0800 Message-Id: <20260227140655.360696-3-yuvraj.sakshith@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260227140655.360696-1-yuvraj.sakshith@oss.qualcomm.com> References: <20260227140655.360696-1-yuvraj.sakshith@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI3MDEyNSBTYWx0ZWRfX6xglV6wYrw7k SCP/tw4us58wcpZKVmYjl3N7+ptKumMr0tl6tdM0a2hbVusgsjzT9/kxnvzPGNmuuZu6BlCKk9a Xq+myZcZQTpbHtg3jML9igpUdVrUiBFMDG9zNq5GsbbKkoTOWcrYz4meIy7NkTWYgvz6gSWS7Ck 5U94IfAqwdFoQYoz3FcwwuETfBqDGo01A7QicB4kT51a1TvTvTZVeJfAUHsfPi+/agLVfCu0Pm6 /J9R3hqbiuoHC0vA2FOdh7EjXsDH679LhRa9DlN+29lOIWYDQdP5B0UfoPccGapu0PTv+ZNQY9h PbrWffRnTqUCQLO+obxb7vnGssI9qZC+1+5px/Bh7ASOPOc+Tu/Um+ii+oTpsMDjjlfLSxkO6gn 1yaL+mCZucZMiQiI1bPN45VW4buzWEhJdBezJ4n4cPpY/HCkmrZreAbsnoG/wLu1VZvZY1qYoFM 3zjWizWsUfzUijOoQjw== X-Authority-Analysis: v=2.4 cv=KL9XzVFo c=1 sm=1 tr=0 ts=69a1a508 cx=c_pps a=7uPEO8VhqeOX8vTJ3z8K6Q==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=EXS-LbY8YePsIyqnH6vw:22 X-Proofpoint-ORIG-GUID: F4sXcphGwk5OdDkgm5MffZ5C36yCqESF X-Proofpoint-GUID: F4sXcphGwk5OdDkgm5MffZ5C36yCqESF 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=2026-02-27_02,2026-02-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 adultscore=0 bulkscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602270125 X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 804121C0015 X-Stat-Signature: igphrw6oyz59bjcu6c74zqhgi6qdu886 X-Rspam-User: X-HE-Tag: 1772201225-779706 X-HE-Meta: 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 Irlz+rgD 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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_DEFAULT ORDER fallback value. 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..0616c03b2 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_DEFAULT_ORDER; + /* * The default page reporting order is @pageblock_order, which * corresponds to 512MB in size on ARM64 when 64KB base page -- 2.34.1