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Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org Subject: Re: [PATCH v1 10/36] mm: sanity-check maximum folio size in folio_set_order() Message-ID: <20250828073554.evipmbkxrint3tbs@master> References: <20250827220141.262669-1-david@redhat.com> <20250827220141.262669-11-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250827220141.262669-11-david@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) X-Mailman-Approved-At: Tue, 18 Nov 2025 17:23:16 +0000 X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Wei Yang Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" On Thu, Aug 28, 2025 at 12:01:14AM +0200, David Hildenbrand wrote: >Let's sanity-check in folio_set_order() whether we would be trying to >create a folio with an order that would make it exceed MAX_FOLIO_ORDER. > >This will enable the check whenever a folio/compound page is initialized >through prepare_compound_head() / prepare_compound_page(). > >Reviewed-by: Zi Yan >Signed-off-by: David Hildenbrand Reviewed-by: Wei Yang -- Wei Yang Help you, Help me