From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ECE57CA0FFD for ; Fri, 30 Aug 2024 15:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=aLbK/W0ke+XbBQdHjiSLLsonkrIrsW3kYAzwq6g9c5Q=; b=eN7glnMBVBlOI2 5Wb7GlgY7HfABSIeEIbLRqoteN9KwK3wIoN1T8R+vbZ2WSAPzCsyqcw/gNdEGnzn1wcC/Zm2vvBzP aBkL66h339bVFBe2xevLUogb0UZIYCFzVdanvfVK2v8OqmjPR2Q7qSjdLN/jiS9FG6QpiYrpPc0Cx nXfar1vog4/yJuyr+I/ZRh37y/U4vGqVAHURupN7EyRb52WC7IdsTYU8faeoUxOsswnxL3Czz8rFA h0itVCvhsTw/AcO9hg61OikCCfF6RkH4d9mu9cO0BUH89NlW/raPiJRgHclKarxb8+o23xT66zEXC 4IteWMbwttxANfMTOEpQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk3AB-00000006iJF-0Ark; Fri, 30 Aug 2024 15:03:47 +0000 Received: from mgamail.intel.com ([192.198.163.14]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk3A7-00000006iI6-3sph; Fri, 30 Aug 2024 15:03:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1725030224; x=1756566224; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=6o7JyR5HGx7yBW/bLFYB5UEEz+m8g4pL6Cmsk6vGPS4=; b=mu657u52KDgbM4KgBJbasN97uFNPsHOyXmHE7UVbMr6LFz1rEj5zhmSk GrrRjC1hRV9EjyCLxTGynAwsHRykieqPS0PjV18rzHGmZwxj/H6ThR6E5 3jL2D1vXSlgG1UUc4iSUbX48eCdYZnxm8zsapJmqjO7+N2YvyTvQcF96d hV2BF+gKEa2Afbic5I6D9cuCX844l/Z/zPbUPwHWxeHYShJARJXDlRvri 4obYgt1eugCP+dssKUXig7pyiNBCrbodUuQQd/8xs7Nl1rsF44yyI9lhe lqQToSaFc2tk5YPFpd9rN8oiDUST76NUhcVOvsv4av0yovAoiJ8MFKdnO Q==; X-CSE-ConnectionGUID: WRwY9xm+TGmuBaKhIjGJwQ== X-CSE-MsgGUID: YIdi7CssTUGPQzkfltKuZQ== X-IronPort-AV: E=McAfee;i="6700,10204,11180"; a="23859102" X-IronPort-AV: E=Sophos;i="6.10,189,1719903600"; d="scan'208";a="23859102" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Aug 2024 08:03:41 -0700 X-CSE-ConnectionGUID: r7q0CKUlTQC3x1miP8LLtw== X-CSE-MsgGUID: eXfyfPtHSKSD6y5ZoE14uw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,189,1719903600"; d="scan'208";a="64273994" Received: from cmdeoliv-mobl.amr.corp.intel.com (HELO [10.125.108.69]) ([10.125.108.69]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Aug 2024 08:03:40 -0700 Message-ID: Date: Fri, 30 Aug 2024 08:03:25 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v2 0/4] mm: Introduce MAP_BELOW_HINT To: Lorenzo Stoakes , 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, "Kirill A. Shutemov" References: <20240829-patches-below_hint_mmap-v2-0-638a28d9eae0@rivosinc.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; keydata= xsFNBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABzUVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT7CwXgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lczsFNBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABwsFfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_080344_100988_029FC718 X-CRM114-Status: GOOD ( 11.30 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org T24gOC8yOS8yNCAwMTo0MiwgTG9yZW56byBTdG9ha2VzIHdyb3RlOgo+PiBUaGVzZSBhcHBsaWNh dGlvbnMgd29yayBvbiB4ODYgYmVjYXVzZSB4ODYgZG9lcyBhbiBpbXBsaWNpdCA0Ny1iaXQKPj4g cmVzdHJpY3Rpb24gb2YgbW1hcCgpIGFkZHJlc3MgdGhhdCBjb250YWluIGEgaGludCBhZGRyZXNz IHRoYXQgaXMgbGVzcwo+PiB0aGFuIDQ4IGJpdHMuCj4gWW91IG1lYW4geDg2IF9oYXNfIHRvIGxp bWl0IHRvIHBoeXNpY2FsbHkgYXZhaWxhYmxlIGJpdHMgaW4gYSBjYW5vbmljYWwKPiBmb3JtYXQg 8J+ZgiB0aGlzIHdpbGwgbm90IGJlIHRoZSBjYXNlIGZvciA1LXBhZ2UgdGFibGUgbGV2ZWxzIHRo b3VnaC4uLgoKQnkgInBoeXNpY2FsbHkgYXZhaWxhYmxlIGJpdHMiIGFyZSB5b3UgcmVmZXJyaW5n IHRvIHRoZSBiaXRzIHRoYXQgY2FuIGJlCnVzZWQgYXMgYSBwYXJ0IG9mIHRoZSB2aXJ0dWFsIGFk ZHJlc3M/ICAiUGh5c2ljYWxseSIgbWF5IG5vdCBoYXZlIGJlZW4KdGhlIGJlc3QgY2hvaWNlIG9m IHdvcmRzLiA7KQoKVGhlcmUncyBhIGNhbm9uaWNhbCBob2xlIGluIDQtbGV2ZWwgcGFnaW5nIGFu ZCA1LWxldmVsIHBhZ2luZyBvbiB4ODYuClRoZSA1LWxldmVsIGNhbm9uaWNhbCBob2xlIGlzIGp1 c3Qgc21hbGxlci4KCkFsc28sIEkgc2hvdWxkIHByb2JhYmx5IHNheSB0aGF0IHRoZSA+NDctYml0 IG1tYXAoKSBhY2Nlc3MgaGludCB3YXMgbW9yZQpvZiBhIGNydXRjaCB0aGFuIHNvbWV0aGluZyB0 aGF0IHdlIHdhbnRlZCB0byBtYWtlIEFCSSBmb3JldmVyLiAgV2Uga25ldwp0aGF0IGhpZ2ggYWRk cmVzc2VzIG1pZ2h0IGJyZWFrIHNvbWUgYXBwcyBhbmQgd2UgaG9wZWQgdGhhdCB0aGUgbGlzdCBv Zgp0aGluZ3MgaXQgd291bGQgYnJlYWsgd291bGQgZ28gZG93biBvdmVyIHRpbWUgc28gdGhhdCB3 ZSBjb3VsZApldmVudHVhbGx5IGp1c3QgbGV0IG1tYXAoKSBhY2Nlc3MgdGhlIHdob2xlIGFkZHJl c3Mgc3BhY2UgYnkgZGVmYXVsdC4KClRoYXQgb3B0aW1pc20gbWF5IGhhdmUgYmVlbiBtaXNwbGFj ZWQuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51 eC1zbnBzLWFyYyBtYWlsaW5nIGxpc3QKbGludXgtc25wcy1hcmNAbGlzdHMuaW5mcmFkZWFkLm9y ZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXNucHMt YXJjCg==