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 X-Spam-Level: X-Spam-Status: No, score=-15.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50BC5C433ED for ; Wed, 14 Apr 2021 05:59:43 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B2AAB610E8 for ; Wed, 14 Apr 2021 05:59:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B2AAB610E8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rgqcrw6ppAPoofrciR2+YYJs67m4dXazHXvS/LMX0K0=; b=FwaVsGzQcnQ8GBGR9X77koxTM a3ufc/SkVyWgT059bBMf+NBAlmW9/J9MC7vabUMUjY9AcQfpt8Pc+0wOKMzdcvbMoaIRtMubAjGva Ndvwpodz4y6tiZ7qUpRQhtNxxyRDXdAjTz6MuQrQjk6Nv2J84bcQbyMHyHxYJ8kbSvef2B+U8EshR OnsTo6dnzNfUKIP2rI9T14VLPd6kIaYcQSwnKtDXcdE9KyvQtMm+O8XpkQykkSkmc5H8oORo5P/M9 mXQSSPofYKHuxAwm62IUHgfeFndHryYhNZz4vLarFNqjJm2FfyFSyWj8iYrrerc108vpBxIXt/92y dsICjW41w==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lWYYh-00BbLv-I2; Wed, 14 Apr 2021 05:59:27 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lWYYO-00BbIT-EF; Wed, 14 Apr 2021 05:59:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Sender:Reply-To:Content-ID:Content-Description; bh=1d0aSoe9a2jPxCdgUE/FZrTTuOj38+fjPPB5G6gZmiM=; b=LfLoPZcx7rEqtfdDYwXr7sftc8 moIgq18vzI42uzfEYLDuYhSBrHlf3LxXwtjAdUTcHL5NrGU+N2nOR+8Tmzg5VQJ353AhwZaBrTN8w XDASxNuqsldcFM1UgZrq4hmoCmAkOB6jbXygakPohsYHLO04/yKCSvrzJ95G6akDHiHSmB0fSRfpD jlL3OBVPpimjuDxvIPhSa2WZsfHYe+FQXYsqsGdSNIaNiPuyiZUewmEHwwRKE6oNXgbp5UhnXvsMj OSclogJqNFo9HWOjNaoFG7h4BvbGMvLmvkxb7wsdb9suv5x5dmfp3TMaJ/PJUnA8rEW6DtREUKP6e CRaMLF8Q==; Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lWYYL-007Vjn-ED; Wed, 14 Apr 2021 05:59:07 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A4E4B106F; Tue, 13 Apr 2021 22:58:57 -0700 (PDT) Received: from [10.163.72.181] (unknown [10.163.72.181]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E76123F694; Tue, 13 Apr 2021 22:58:50 -0700 (PDT) Subject: Re: [PATCH] mm: Define ARCH_HAS_FIRST_USER_ADDRESS To: Christophe Leroy , linux-mm@kvack.org, akpm@linux-foundation.org Cc: linux-s390@vger.kernel.org, x86@kernel.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, linux-mips@vger.kernel.org, linux-csky@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, linux-snps-arc@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org References: <1618368899-20311-1-git-send-email-anshuman.khandual@arm.com> From: Anshuman Khandual Message-ID: <6d24d3cc-b2df-f0d7-f4bf-f505f679c77e@arm.com> Date: Wed, 14 Apr 2021 11:29:40 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210413_225905_580988_9164F0FF X-CRM114-Status: GOOD ( 15.96 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org CgpPbiA0LzE0LzIxIDEwOjUyIEFNLCBDaHJpc3RvcGhlIExlcm95IHdyb3RlOgo+IAo+IAo+IExl IDE0LzA0LzIwMjEgw6AgMDQ6NTQsIEFuc2h1bWFuIEtoYW5kdWFsIGEgw6ljcml0wqA6Cj4+IEN1 cnJlbnRseSBtb3N0IHBsYXRmb3JtcyBkZWZpbmUgRklSU1RfVVNFUl9BRERSRVNTIGFzIDBVTCBk dXBsaWNhdGluZyB0aGUKPj4gc2FtZSBjb2RlIGFsbCBvdmVyLiBJbnN0ZWFkIGRlZmluZSBhIG5l dyBvcHRpb24gQVJDSF9IQVNfRklSU1RfVVNFUl9BRERSRVNTCj4+IGZvciB0aG9zZSBwbGF0Zm9y bXMgd2hpY2ggd291bGQgb3ZlcnJpZGUgZ2VuZXJpYyBkZWZhdWx0IEZJUlNUX1VTRVJfQUREUkVT Uwo+PiB2YWx1ZSAwVUwuIFRoaXMgbWFrZXMgaXQgbXVjaCBjbGVhbmVyIHdpdGggcmVkdWNlZCBj b2RlLgo+Pgo+PiBDYzogbGludXgtYWxwaGFAdmdlci5rZXJuZWwub3JnCj4+IENjOiBsaW51eC1z bnBzLWFyY0BsaXN0cy5pbmZyYWRlYWQub3JnCj4+IENjOiBsaW51eC1hcm0ta2VybmVsQGxpc3Rz LmluZnJhZGVhZC5vcmcKPj4gQ2M6IGxpbnV4LWNza3lAdmdlci5rZXJuZWwub3JnCj4+IENjOiBs aW51eC1oZXhhZ29uQHZnZXIua2VybmVsLm9yZwo+PiBDYzogbGludXgtaWE2NEB2Z2VyLmtlcm5l bC5vcmcKPj4gQ2M6IGxpbnV4LW02OGtAbGlzdHMubGludXgtbTY4ay5vcmcKPj4gQ2M6IGxpbnV4 LW1pcHNAdmdlci5rZXJuZWwub3JnCj4+IENjOiBvcGVucmlzY0BsaXN0cy5saWJyZWNvcmVzLm9y Zwo+PiBDYzogbGludXgtcGFyaXNjQHZnZXIua2VybmVsLm9yZwo+PiBDYzogbGludXhwcGMtZGV2 QGxpc3RzLm96bGFicy5vcmcKPj4gQ2M6IGxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcK Pj4gQ2M6IGxpbnV4LXMzOTBAdmdlci5rZXJuZWwub3JnCj4+IENjOiBsaW51eC1zaEB2Z2VyLmtl cm5lbC5vcmcKPj4gQ2M6IHNwYXJjbGludXhAdmdlci5rZXJuZWwub3JnCj4+IENjOiBsaW51eC11 bUBsaXN0cy5pbmZyYWRlYWQub3JnCj4+IENjOiBsaW51eC14dGVuc2FAbGludXgteHRlbnNhLm9y Zwo+PiBDYzogeDg2QGtlcm5lbC5vcmcKPj4gQ2M6IGxpbnV4LW1tQGt2YWNrLm9yZwo+PiBDYzog bGludXgta2VybmVsQHZnZXIua2VybmVsLm9yZwo+PiBTaWduZWQtb2ZmLWJ5OiBBbnNodW1hbiBL aGFuZHVhbCA8YW5zaHVtYW4ua2hhbmR1YWxAYXJtLmNvbT4KPj4gLS0tCj4+IMKgIGFyY2gvYWxw aGEvaW5jbHVkZS9hc20vcGd0YWJsZS5owqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHwgMSAtCj4+ IMKgIGFyY2gvYXJjL2luY2x1ZGUvYXNtL3BndGFibGUuaMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqAgfCA2IC0tLS0tLQo+PiDCoCBhcmNoL2FybS9LY29uZmlnwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgfCAxICsKPj4gwqAgYXJjaC9h cm02NC9pbmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgfCAyIC0t Cj4+IMKgIGFyY2gvY3NreS9pbmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoCB8IDEgLQo+PiDCoCBhcmNoL2hleGFnb24vaW5jbHVkZS9hc20vcGd0YWJsZS5owqDC oMKgwqDCoMKgwqDCoMKgwqAgfCAzIC0tLQo+PiDCoCBhcmNoL2lhNjQvaW5jbHVkZS9hc20vcGd0 YWJsZS5owqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgfCAxIC0KPj4gwqAgYXJjaC9tNjhrL2lu Y2x1ZGUvYXNtL3BndGFibGVfbW0uaMKgwqDCoMKgwqDCoMKgwqDCoMKgIHwgMSAtCj4+IMKgIGFy Y2gvbWljcm9ibGF6ZS9pbmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDCoMKgwqDCoCB8IDIgLS0K Pj4gwqAgYXJjaC9taXBzL2luY2x1ZGUvYXNtL3BndGFibGUtMzIuaMKgwqDCoMKgwqDCoMKgwqDC oMKgIHwgMSAtCj4+IMKgIGFyY2gvbWlwcy9pbmNsdWRlL2FzbS9wZ3RhYmxlLTY0LmjCoMKgwqDC oMKgwqDCoMKgwqDCoCB8IDEgLQo+PiDCoCBhcmNoL25kczMyL0tjb25maWfCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHwgMSArCj4+IMKgIGFyY2gv bmlvczIvaW5jbHVkZS9hc20vcGd0YWJsZS5owqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHwgMiAt LQo+PiDCoCBhcmNoL29wZW5yaXNjL2luY2x1ZGUvYXNtL3BndGFibGUuaMKgwqDCoMKgwqDCoMKg wqDCoCB8IDEgLQo+PiDCoCBhcmNoL3BhcmlzYy9pbmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDC oMKgwqDCoMKgwqDCoMKgIHwgMiAtLQo+PiDCoCBhcmNoL3Bvd2VycGMvaW5jbHVkZS9hc20vYm9v azNzL3BndGFibGUuaMKgwqDCoCB8IDEgLQo+PiDCoCBhcmNoL3Bvd2VycGMvaW5jbHVkZS9hc20v bm9oYXNoLzMyL3BndGFibGUuaCB8IDEgLQo+PiDCoCBhcmNoL3Bvd2VycGMvaW5jbHVkZS9hc20v bm9oYXNoLzY0L3BndGFibGUuaCB8IDIgLS0KPj4gwqAgYXJjaC9yaXNjdi9pbmNsdWRlL2FzbS9w Z3RhYmxlLmjCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgfCAyIC0tCj4+IMKgIGFyY2gvczM5MC9p bmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCB8IDIgLS0KPj4g wqAgYXJjaC9zaC9pbmNsdWRlL2FzbS9wZ3RhYmxlLmjCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqAgfCAyIC0tCj4+IMKgIGFyY2gvc3BhcmMvaW5jbHVkZS9hc20vcGd0YWJsZV8zMi5owqDC oMKgwqDCoMKgwqDCoMKgIHwgMSAtCj4+IMKgIGFyY2gvc3BhcmMvaW5jbHVkZS9hc20vcGd0YWJs ZV82NC5owqDCoMKgwqDCoMKgwqDCoMKgIHwgMyAtLS0KPj4gwqAgYXJjaC91bS9pbmNsdWRlL2Fz bS9wZ3RhYmxlLTJsZXZlbC5owqDCoMKgwqDCoMKgwqDCoCB8IDEgLQo+PiDCoCBhcmNoL3VtL2lu Y2x1ZGUvYXNtL3BndGFibGUtM2xldmVsLmjCoMKgwqDCoMKgwqDCoMKgIHwgMSAtCj4+IMKgIGFy Y2gveDg2L2luY2x1ZGUvYXNtL3BndGFibGVfdHlwZXMuaMKgwqDCoMKgwqDCoMKgwqAgfCAyIC0t Cj4+IMKgIGFyY2gveHRlbnNhL2luY2x1ZGUvYXNtL3BndGFibGUuaMKgwqDCoMKgwqDCoMKgwqDC oMKgwqAgfCAxIC0KPj4gwqAgaW5jbHVkZS9saW51eC9tbS5owqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCB8IDQgKysrKwo+PiDCoCBtbS9LY29uZmln wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqAgfCA0ICsrKysKPj4gwqAgMjkgZmlsZXMgY2hhbmdlZCwgMTAgaW5zZXJ0aW9u cygrKSwgNDMgZGVsZXRpb25zKC0pCj4+Cj4+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L21t LmggYi9pbmNsdWRlL2xpbnV4L21tLmgKPj4gaW5kZXggOGJhNDM0Mjg3Mzg3Li40NzA5OGNjZDcx NWUgMTAwNjQ0Cj4+IC0tLSBhL2luY2x1ZGUvbGludXgvbW0uaAo+PiArKysgYi9pbmNsdWRlL2xp bnV4L21tLmgKPj4gQEAgLTQ2LDYgKzQ2LDEwIEBAIGV4dGVybiBpbnQgc3lzY3RsX3BhZ2VfbG9j a191bmZhaXJuZXNzOwo+PiDCoCDCoCB2b2lkIGluaXRfbW1faW50ZXJuYWxzKHZvaWQpOwo+PiDC oCArI2lmbmRlZiBBUkNIX0hBU19GSVJTVF9VU0VSX0FERFJFU1MKPiAKPiBJIGd1ZXNzIHlvdSBk aWRuJ3QgdGVzdCBpdCAuLi4uLiA6KQoKSW4gZmFjdCBJIGRpZCA6KSBUaG91Z2gganVzdCBib290 ZWQgaXQgb24gYXJtNjQgYW5kIGNyb3NzIGNvbXBpbGVkIG9uCm11bHRpcGxlIG90aGVycyBwbGF0 Zm9ybXMuCgo+IAo+IHNob3VsZCBiZSAjaWZuZGVmIENPTkZJR19BUkNIX0hBU19GSVJTVF9VU0VS X0FERFJFU1MKClJpZ2h0LCBtZWFudCB0aGF0IGluc3RlYWQuCgo+IAo+PiArI2RlZmluZSBGSVJT VF9VU0VSX0FERFJFU1PCoMKgwqAgMFVMCj4+ICsjZW5kaWYKPiAKPiBCdXQgd2h5IGRvIHdlIG5l ZWQgYSBjb25maWcgb3B0aW9uIGF0IGFsbCBmb3IgdGhhdCA/Cj4gCj4gV2h5IG5vdCBqdXN0Ogo+ IAo+ICNpZm5kZWYgRklSU1RfVVNFUl9BRERSRVNTCj4gI2RlZmluZSBGSVJTVF9VU0VSX0FERFJF U1PCoMKgwqAgMFVMCj4gI2VuZGlmCgpUaGlzIHNvdW5kcyBzaW1wbGVyLiBCdXQganVzdCB3b25k ZXJpbmcsIHdvdWxkIG5vdCB0aGVyZSBiZSBhbnkgcG9zc2liaWxpdHkKb2YgYnVpbGQgcHJvYmxl bXMgZHVlIHRvIGNvbXBpbGF0aW9uIHNlcXVlbmNlIGJldHdlZW4gYXJjaCBhbmQgZ2VuZXJpYyBj b2RlID8KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK