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Bottomley" , Helge Deller , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Andreas Larsson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Chris Zankel , Max Filippov , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-csky@vger.kernel.org, loongarch@lists.linux.dev, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 2/3] mm: Pass vm_flags to generic_get_unmapped_area() Message-ID: References: <20240902-mm-generic-shadow-stack-guard-v1-0-9acda38b3dd3@kernel.org> <20240902-mm-generic-shadow-stack-guard-v1-2-9acda38b3dd3@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20240902-mm-generic-shadow-stack-guard-v1-2-9acda38b3dd3@kernel.org> X-Stat-Signature: gwhybkw3ypnqyiqgqrj51e6u91iygr3k X-Rspamd-Queue-Id: 7EC9318002E X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1725476031-706317 X-HE-Meta: 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 xns+V1Sp 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Sep 02, 2024 at 08:08:14PM +0100, Mark Brown wrote: >In preparation for using vm_flags to ensure guard pages for shadow stacks >supply them as an argument to generic_get_unmapped_area(). The only user >outside of the core code is the PowerPC book3s64 implementation which is >trivially wrapping the generic implementation in the radix_enabled() case. > >Signed-off-by: Mark Brown Reviewed-by: Deepak Gupta