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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-67a1d603f31sm938666eaf.5.2026.03.03.01.33.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Mar 2026 01:33:50 -0800 (PST) From: Yuvraj Sakshith To: mst@redhat.com, david@kernel.org Cc: 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, akpm@linux-foundation.org, 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, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, linux-mm@kvack.org Subject: [PATCH v3 4/5] mm/page_reporting: change PAGE_REPORTING_ORDER_UNSPECIFIED to -1 Date: Tue, 3 Mar 2026 01:33:40 -0800 Message-Id: <20260303093341.2927482-5-yuvraj.sakshith@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260303093341.2927482-1-yuvraj.sakshith@oss.qualcomm.com> References: <20260303093341.2927482-1-yuvraj.sakshith@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=Pv2ergM3 c=1 sm=1 tr=0 ts=69a6ab00 cx=c_pps a=V4L7fE8DliODT/OoDI2WOg==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=6q7Fjfde3VlTRWJJNBIA:9 a=WZGXeFmKUf7gPmL3hEjn:22 X-Proofpoint-ORIG-GUID: sBQ9aqRvWvPo06rzkdmP1S2Q9_U0tAf5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAzMDA3MSBTYWx0ZWRfX8cCHKmbcPZQZ pquQ37Qn8ZzS+cCdRKZ5EUPUCJwaL0PW74YOKfQpWe6gFw4Fh/FV0pLG+hy7OEkw0KHvMrqHhRe laWv68UCSg+tLLeVaknJuXGaXon4VY9n7gnu+50zKJtA5e8m7yODk8jK1FA1Iw1s1Iq60QnCl3A p4pp60FGhQNpEtLPLSW894Ji8TUJCBTp760SpfwSmlRQ6sIODvxhD5Kb57kRjuh5XI1E9Zu88iS V8QUUaRgJV0avP/iBeURKY3wAlRP/c80lbxAoONw2TqnLvd+UubuRR1/BQgYsQ/UrdoXlO1RYRP xXbS7idkEKQtWqW6YlouktWitnIxkLd2Nd+fLjQa0Y4mDBefiYvFsSmlG9d+Xk5ERB2F5MGOEfQ nNp0LHmn2l8nPW08I7YSkl7j4501IXNA1z86RcjYHI1PStZLVGjTef+aDlwDS5am7pcclHd2nPB FmhJxc35A0SqfjlOiXQ== X-Proofpoint-GUID: sBQ9aqRvWvPo06rzkdmP1S2Q9_U0tAf5 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_05,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 malwarescore=0 spamscore=0 suspectscore=0 adultscore=0 priorityscore=1501 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030071 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: EA76E40007 X-Stat-Signature: dsjpgjw5f6wsrywjtc5omxfopycy45kk X-Rspam-User: X-HE-Tag: 1772530433-100699 X-HE-Meta: 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 FihoFW/V 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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_ORDER_UNSPECIFIED 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_ORDER_UNSPECIFIED 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 d1886c657..9d4ca5c21 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_ORDER_UNSPECIFIED 0 +#define PAGE_REPORTING_ORDER_UNSPECIFIED -1 struct page_reporting_dev_info { /* function that alters pages to make them "reported" */ -- 2.34.1