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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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=V4NwEOni 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=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=Jvdq4yWlxvBRgq3Xg-wA:9 a=efpaJB4zofY2dbm2aIRb:22 X-Proofpoint-GUID: emqv7oypXt5pnlTKTCrz_bjWVkog7tPQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAyMDA5MyBTYWx0ZWRfX44CJ5mhfbnCY I84I5BBqorytyvS9hRUA8UKnnGoUOJnf5K4qiN5M2tvWiPuaUxja3CsPJfGAHA1WdBOgbDmCxMR x1EwmujlsMBc99dxvo6VpbJvG2Urcdz5XUhBUGdbdXraYj7kTyGcUBkEpMRP2QvBzmHyifce/At 2YxrzjMzdxW+VGW6pekZKuWq12Tgcb9GoUETS0OVAXxUPd9rCbRehNQyUaQj12O8O5nF3mPsAiB dEW0sNPVpn6QMJkcELadT7MTwJl5ZZoKY47UZAdH5CPLeicm8l0uM5ApZoRZk9r7AwrTFRWRL+v pUWPxQkM44Igpd2jgX/bAyA9IFIOWpUN1hgkro44K6LOmEUpMQ9rO9ujy+TK27L4l6SBndvFXtS HQ1U8pEps7yMbnNj8dQf0yeb26fmSJiyrgvPTjD/TmZyTSsTwxuU5PhNz1J/fCMaNon7gI/5vMi W7QbhQ/j7c0kvnXsLFQ== X-Proofpoint-ORIG-GUID: emqv7oypXt5pnlTKTCrz_bjWVkog7tPQ 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 clxscore=1015 suspectscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 bulkscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603020093 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 28340180006 X-Stat-Signature: a983wu8sj876d1b4346z9bdjaic54n5n X-Rspam-User: X-HE-Tag: 1772450284-36088 X-HE-Meta: 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 hOoR/iiH 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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. 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