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 7DAFFC433F5 for ; Wed, 19 Jan 2022 13:33:36 +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-Type: Content-Transfer-Encoding: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=lZUsiFWLwNPsDKjvfuaCawtlVvjWpQsCCdN/mIPO7sY=; b=VUWfbc1iCJISXI SmsHmWaKfwMziGi+puTM3e10mxZtfSKtHARgEYKX1YyxLML7/qy/B848xDZ6DGw9pU3bHNT0MEhY4 ncMtjxdUTnp2SPGcRc5odmkVbf2whb2/IfDwAIu/lqkOB9U8o1r7r9orS5udpbxKSjxjQabZF9d7v llDoEXU0N/fFSSpwBa7SRk4NeqiMrjFZfXpUG4bsqsA8OYml5AMevDCTxu+MCc2OEYAsDAKZZymQG k/I4d0o63jzHy4Y0gihFiWVnUA3OkUOhnCBEVl9Z16RvVlvxToHuQDdhOwgMm7o3FR9fF7HFk/kRo CgwxXYovTV0CHoKovq8Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAB4b-005dAk-8u; Wed, 19 Jan 2022 13:32:25 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAB4X-005d6p-9j for linux-arm-kernel@lists.infradead.org; Wed, 19 Jan 2022 13:32:23 +0000 Received: from dggpemm500023.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Jf60Y3G8kzZfHP; Wed, 19 Jan 2022 21:28:29 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500023.china.huawei.com (7.185.36.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 19 Jan 2022 21:32:15 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.21; Wed, 19 Jan 2022 21:32:14 +0800 Message-ID: Date: Wed, 19 Jan 2022 21:32:13 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v2 3/3] x86: Support huge vmalloc mappings Content-Language: en-US To: Nicholas Piggin , Andrew Morton , Jonathan Corbet , Dave Hansen , , , , , , CC: Benjamin Herrenschmidt , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , "H. Peter Anvin" , Ingo Molnar , "Michael Ellerman" , Paul Mackerras , "Thomas Gleixner" , Will Deacon , Matthew Wilcox References: <20211227145903.187152-1-wangkefeng.wang@huawei.com> <20211227145903.187152-4-wangkefeng.wang@huawei.com> <70ff58bc-3a92-55c2-2da8-c5877af72e44@intel.com> <3858de1f-cdbc-ff52-2890-4254d0f48b0a@huawei.com> <31a75f95-6e6e-b640-2d95-08a95ea8cf51@intel.com> <1642472965.lgfksp6krp.astroid@bobo.none> <4488d39f-0698-7bfd-b81c-1e609821818f@intel.com> <1642565468.c0jax91tvn.astroid@bobo.none> From: Kefeng Wang In-Reply-To: <1642565468.c0jax91tvn.astroid@bobo.none> X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggeme705-chm.china.huawei.com (10.1.199.101) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_053221_766117_5197BDDC X-CRM114-Status: GOOD ( 26.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIwMjIvMS8xOSAxMjoxNywgTmljaG9sYXMgUGlnZ2luIHdyb3RlOgo+IEV4Y2VycHRzIGZy b20gRGF2ZSBIYW5zZW4ncyBtZXNzYWdlIG9mIEphbnVhcnkgMTksIDIwMjIgMzoyOCBhbToKPj4g T24gMS8xNy8yMiA2OjQ2IFBNLCBOaWNob2xhcyBQaWdnaW4gd3JvdGU6Cj4+Pj4gVGhpcyBhbGwg c291bmRzIHZlcnkgZnJhZ2lsZSB0byBtZS4gIEV2ZXJ5IHRpbWUgYSBuZXcgYXJjaGl0ZWN0dXJl IHdvdWxkCj4+Pj4gZ2V0IGFkZGVkIGZvciBodWdlIHZtYWxsb2MoKSBzdXBwb3J0LCB0aGUgZGV2 ZWxvcGVyIG5lZWRzIHRvIGtub3cgdG8gZ28KPj4+PiBmaW5kIHRoYXQgYXJjaGl0ZWN0dXJlJ3Mg bW9kdWxlX2FsbG9jKCkgYW5kIGFkZCB0aGlzIGZsYWcuCj4+PiBUaGlzIGlzIGRvY3VtZW50ZWQg aW4gdGhlIEtjb25maWcuCj4+Pgo+Pj4gICAjCj4+PiAgICMgIEFyY2hzIHRoYXQgc2VsZWN0IHRo 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