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Thu, 29 Aug 2024 08:48:47 +0000 Received: from SJ0PR10MB5613.namprd10.prod.outlook.com ([fe80::4239:cf6f:9caa:940e]) by SJ0PR10MB5613.namprd10.prod.outlook.com ([fe80::4239:cf6f:9caa:940e%5]) with mapi id 15.20.7918.017; Thu, 29 Aug 2024 08:48:47 +0000 Date: Thu, 29 Aug 2024 09:48:44 +0100 From: Lorenzo Stoakes To: Charlie Jenkins Cc: Arnd Bergmann , Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Guo Ren , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , "James E.J. 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" , Andy Lutomirski , Peter Zijlstra , Muchun Song , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Shuah Khan , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, 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, linux-kselftest@vger.kernel.org Subject: Re: [PATCH RFC v2 2/4] mm: Add hint and mmap_flags to struct vm_unmapped_area_info Message-ID: <0454187e-3e01-4af7-b193-07468ffa8934@lucifer.local> References: <20240829-patches-below_hint_mmap-v2-0-638a28d9eae0@rivosinc.com> <20240829-patches-below_hint_mmap-v2-2-638a28d9eae0@rivosinc.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240829-patches-below_hint_mmap-v2-2-638a28d9eae0@rivosinc.com> X-ClientProxiedBy: LO4P123CA0699.GBRP123.PROD.OUTLOOK.COM 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 Y1i1GUPl 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file *filp, unsigned long addr, > struct vm_unmapped_area_info info = {}; > const unsigned long mmap_end = arch_get_mmap_end(addr, len, flags); > > + info.hint = addr; > + info.mmap_flags = flags; > + > if (len > mmap_end - mmap_min_addr) > return -ENOMEM; > > @@ -1841,6 +1844,9 @@ generic_get_unmapped_area_topdown(struct file *filp, unsigned long addr, > struct vm_unmapped_area_info info = {}; > const unsigned long mmap_end = arch_get_mmap_end(addr, len, flags); > > + info.hint = addr; > + info.mmap_flags = flags; > + > /* requested length too big for entire address space */ > if (len > mmap_end - mmap_min_addr) > return -ENOMEM; > These line numbers suggest you're working against Linus's tree, mm/mmap.c has changed a lot recently, so to avoid conflicts please base your changes on mm-unstable in Andrew's tree (if looking to go through that) or at least -next. > -- > 2.45.0 >