From: Yuvraj Sakshith <yuvraj.sakshith@oss.qualcomm.com>
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 [thread overview]
Message-ID: <20260227140655.360696-3-yuvraj.sakshith@oss.qualcomm.com> (raw)
In-Reply-To: <20260227140655.360696-1-yuvraj.sakshith@oss.qualcomm.com>
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 <yuvraj.sakshith@oss.qualcomm.com>
---
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
next prev parent reply other threads:[~2026-02-27 14:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-27 14:06 [PATCH v1 0/4] Allow order zero pages in page reporting Yuvraj Sakshith
2026-02-27 14:06 ` [PATCH v1 1/4] page_reporting: add PAGE_REPORTING_DEFAULT_ORDER Yuvraj Sakshith
2026-02-27 14:06 ` Yuvraj Sakshith [this message]
2026-02-27 14:06 ` [PATCH v1 3/4] hv_balloon: set default page reporting order Yuvraj Sakshith
2026-02-27 14:06 ` [PATCH v1 4/4] page_reporting: change PAGE_REPORTING_DEFAULT_ORDER to -1 Yuvraj Sakshith
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