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b=mx2DtyDJxOxcvJtkTJ14WZx+n43p0eMn2oSshRNuNg6xwLQVfmgPttBACZ9PwVrH0 +0LeBAbi+mclNpvLi78y5IAI2qQ7SPxlrfe9YCx9K/SdDivgyIyZX7BoMfQzpZcjYl mAysBAWJUiT3Ecf4vSaLx2I04WFhFPLMT/akz67y5gXR7QFLPKSFXBIfzXBeJ47rUJ vfFiPqltsncVw0olAEdOkoQWp7CLijdZJ40iSlwTA5ON+P3VV0s/pJVsY1DCWgIMuE bo/MYkqphL7BjK2EMT5ojcNjMMZnmU5kKII1gwJMXmE3xqjvN+gddFEEjGbn9c+hHb bXVzVyHiDdM4w== Message-ID: <2d11be07-c142-4cc7-9fa9-f6f3243b5c72@kernel.org> Date: Tue, 3 Mar 2026 11:04:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 4/5] mm/page_reporting: change PAGE_REPORTING_ORDER_UNSPECIFIED to -1 To: Yuvraj Sakshith , mst@redhat.com 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 References: <20260303093341.2927482-1-yuvraj.sakshith@oss.qualcomm.com> <20260303093341.2927482-5-yuvraj.sakshith@oss.qualcomm.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: uj6qtyicm5xp7xje7topc4bpq1wecif3 X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: C938F80009 X-HE-Tag: 1772532279-741474 X-HE-Meta: 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 Z1g9ZyuK xvUiZYkej3EQw9U7MXDZ7bR5eGCC9sFP/Uk270Hscioi/wzQJYp5GRZl2o2hGOHH6/I/ScRFb6OUuXK6g33C4AVo2JIkfwOpSrOkJ//gApqtBWz+ZSV3yK1lwTWtNr+tqxih4y9SFoWjPpxwOxueNYL/06497RgSzAkYXZ7BbZBNSXqbrUAtJclm/mKGygFjMEEfWnkRG2Opv6sgmORrej61L+ko/MAOgO/OaLQQ97uEGt9HtJWVoqNjIgZpsQ5zmS997SlQRzmKAYuF3VujUlzs88m6+VcAaMphs/74tkeaJxWeQdmR3ebBcLYhG3FeHq+2ZtcWaHkFcB83n9TgWuiZg1qhEPVpj+14F Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/3/26 10:33, Yuvraj Sakshith wrote: > 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 > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David