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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d5866269a8sm4324502a34.13.2026.02.27.06.07.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Feb 2026 06:07:06 -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 4/4] page_reporting: change PAGE_REPORTING_DEFAULT_ORDER to -1 Date: Fri, 27 Feb 2026 06:06:55 -0800 Message-Id: <20260227140655.360696-5-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-Authority-Analysis: v=2.4 cv=BOC+bVQG c=1 sm=1 tr=0 ts=69a1a50c cx=c_pps a=+3WqYijBVYhDct2f5Fivkw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=6q7Fjfde3VlTRWJJNBIA:9 a=eYe2g0i6gJ5uXG_o6N4q:22 X-Proofpoint-GUID: rtCuneLJCKDgI9V9ePFmKtcQ-a5YmWog X-Proofpoint-ORIG-GUID: rtCuneLJCKDgI9V9ePFmKtcQ-a5YmWog X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI3MDEyNSBTYWx0ZWRfX1Myk+dxhPF9J N+ShYwx9ve7yaHSvV3KGOJ8+a8V3uTCPkycEMhOwN/sj0v1ErDpZx9C8sxXMQ4FSNVZIlJxhnqu 2CFs5e+ni/Spa/bMHL3n6JHrnsUMxd0LhJAr/YcnP2oB+8SFfj8B27qGm0IDFxjM4KoCnJoKqKU /nFdOG1QW1UIklMT6FxaPUZQwvlWu7SVaAdoK67LvY7IBu3bRt2l3bno+4yrCg7tXa/712weuQB DuqW2bDtvIh41D2Da/IxPychyrdIlUBpQYhlZbMSruOoDVtKpMMGD9xpPQqZX71e7xtwYQh4oFk QPApqNbaaqB5SOMc4ng4LXLOILLhiDvgpDsrENJAANyGZy7YIl/j/RLHud90gubi7QSAehOfwa9 qWcDWts6JTrfOrChW5b0bSrsaxHt6UKeWGcBHHAElOxAKj33SfcHNmcbT12lXFaRK0QYBsMQmJA zKjjzviQQeBb2JC/uaQ== 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 malwarescore=0 impostorscore=0 spamscore=0 suspectscore=0 phishscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602270125 X-Rspam-User: X-Stat-Signature: 8t7g39i8cip863bnen5sj5aoesyuaeir X-Rspamd-Queue-Id: 50C684000D X-Rspamd-Server: rspam10 X-HE-Tag: 1772201229-744359 X-HE-Meta: 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 WN2ZRTZu 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: PAGE_REPORTING_DEFAULT_ORDER is now set to zero. This means, pages of order zero cannot be reported to a client/driver -- as zero is used to signal a fallback to MAX_PAGE_ORDER. Change PAGE_REPORTING_DEFAULT_ORDER to (-1), so that zero can be used as a valid order with which pages can be reported. Signed-off-by: Yuvraj Sakshith --- include/linux/page_reporting.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/page_reporting.h b/include/linux/page_reporting.h index a7e3e30f2..3eb3e26d8 100644 --- a/include/linux/page_reporting.h +++ b/include/linux/page_reporting.h @@ -7,7 +7,7 @@ /* This value should always be a power of 2, see page_reporting_cycle() */ #define PAGE_REPORTING_CAPACITY 32 -#define PAGE_REPORTING_DEFAULT_ORDER 0 +#define PAGE_REPORTING_DEFAULT_ORDER (-1) struct page_reporting_dev_info { /* function that alters pages to make them "reported" */ -- 2.34.1