+ virtio_balloon-set-unspecified-page-reporting-order.patch added to mm-new branch

+ virtio_balloon-set-unspecified-page-reporting-order.patch added to mm-new branch

[Andrew Morton]

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The patch titled
     Subject: virtio_balloon: set unspecified page reporting order
has been added to the -mm mm-new branch.  Its filename is
     virtio_balloon-set-unspecified-page-reporting-order.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/virtio_balloon-set-unspecified-page-reporting-order.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

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------------------------------------------------------
From: Yuvraj Sakshith <yuvraj.sakshith@oss.qualcomm.com>
Subject: virtio_balloon: set unspecified page reporting order
Date: Tue, 3 Mar 2026 03:30:29 -0800

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.

Link: https://lkml.kernel.org/r/20260303113032.3008371-3-yuvraj.sakshith@oss.qualcomm.com
Signed-off-by: Yuvraj Sakshith <yuvraj.sakshith@oss.qualcomm.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Long Li <longli@microsoft.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/virtio/virtio_balloon.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/virtio/virtio_balloon.c~virtio_balloon-set-unspecified-page-reporting-order
+++ a/drivers/virtio/virtio_balloon.c
@@ -1022,6 +1022,8 @@ static int virtballoon_probe(struct virt
 			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
_

Patches currently in -mm which might be from yuvraj.sakshith@oss.qualcomm.com are

mm-page_reporting-add-page_reporting_order_unspecified.patch
virtio_balloon-set-unspecified-page-reporting-order.patch
hv_balloon-set-unspecified-page-reporting-order.patch
mm-page_reporting-change-page_reporting_order_unspecified-to-1.patch
mm-page_reporting-change-page_reporting_order-to-page_reporting_order_unspecified.patch