+ hv_balloon-change-default-page-reporting-order.patch added to mm-new branch

+ hv_balloon-change-default-page-reporting-order.patch added to mm-new branch

[Andrew Morton]

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The patch titled
     Subject: hv_balloon: change default page reporting order
has been added to the -mm mm-new branch.  Its filename is
     hv_balloon-change-default-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/hv_balloon-change-default-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: hv_balloon: change default page reporting order
Date: Wed, 25 Feb 2026 23:01:24 -0800

page_reporting_order used to fall back to default value (passed as
parameter or MAX_PAGE_ORDER) if the driver wishes to not provide it.

The way the driver used to do this was by passing the order as zero.

Now that zero is a valid order that can be passed by a driver to page
reporting, we use -1 to signal default value to be used.

Link: https://lkml.kernel.org/r/20260226070125.3732265-3-yuvraj.sakshith@oss.qualcomm.com
Signed-off-by: Yuvraj Sakshith <yuvraj.sakshith@oss.qualcomm.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@kernel.org>
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: Long Li <longli@microsoft.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
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/hv/hv_balloon.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hv/hv_balloon.c~hv_balloon-change-default-page-reporting-order
+++ a/drivers/hv/hv_balloon.c
@@ -1663,7 +1663,7 @@ static void enable_page_reporting(void)
 	 * We let the page_reporting_order parameter decide the order
 	 * in the page_reporting code
 	 */
-	dm_device.pr_dev_info.order = 0;
+	dm_device.pr_dev_info.order = -1;
 	ret = page_reporting_register(&dm_device.pr_dev_info);
 	if (ret < 0) {
 		dm_device.pr_dev_info.report = NULL;
_

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

mm-page_reporting-allow-zero-page_reporting_order.patch
hv_balloon-change-default-page-reporting-order.patch
virtio_balloon-set-pr_devorder-to-new-default.patch