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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A77BC38A02 for ; Fri, 28 Oct 2022 14:02:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A90616B0071; Fri, 28 Oct 2022 10:02:37 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A40056B0073; Fri, 28 Oct 2022 10:02:37 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 907D26B0074; Fri, 28 Oct 2022 10:02:37 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 806E66B0071 for ; Fri, 28 Oct 2022 10:02:37 -0400 (EDT) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 004F7121248 for ; Fri, 28 Oct 2022 14:02:36 +0000 (UTC) X-FDA: 80070523554.06.2CE0594 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf21.hostedemail.com (Postfix) with ESMTP id 6F05F1C0037 for ; Fri, 28 Oct 2022 14:02:36 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A4A496289A; Fri, 28 Oct 2022 14:02:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 702B6C433D6; Fri, 28 Oct 2022 14:02:31 +0000 (UTC) Date: Fri, 28 Oct 2022 15:02:28 +0100 From: Catalin Marinas To: "Kirill A. Shutemov" Cc: Dave Hansen , Andy Lutomirski , Peter Zijlstra , x86@kernel.org, Kostya Serebryany , Andrey Ryabinin , Andrey Konovalov , Alexander Potapenko , Taras Madan , Dmitry Vyukov , "H . J . Lu" , Andi Kleen , Rick Edgecombe , Bharata B Rao , Jacob Pan , Ashok Raj , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "David S. Miller" , Will Deacon Subject: Re: [PATCHv11 09/16] mm: Expose untagging mask in /proc/$PID/status Message-ID: References: <20221025001722.17466-1-kirill.shutemov@linux.intel.com> <20221025001722.17466-10-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221025001722.17466-10-kirill.shutemov@linux.intel.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666965756; a=rsa-sha256; cv=none; b=JiBYkLLoPsLWjwColR/59rAeirU8JCW9GtJWPg4Na8WD3Fxx654acKQZG5oLOdgpHEg8tZ hKwnMLg4615jwHTQ3NbdoWKTBKAG8ITI4Y46lBfLLTd5cULaoEmnhoic2gZ6mZL1d861G/ ZSiioPUPSGm7H4RV4H59Y4+l0rjbn2c= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=none; spf=pass (imf21.hostedemail.com: domain of cmarinas@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=cmarinas@kernel.org; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666965756; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2R8b6x9QBYKivqAVra+Xy2UftB0zVREwUG/HNswcLLM=; b=ZCbB7doR7BKlSoje54AalDlflda4r1ldBmiwVY+68R+I5ln9fBWYJGzgZ/XOM5zdyBqAP1 SDUF3cRUMwQHT6WLkveNqV7tandtsh3ZZx6ct6S6mgASxyXipzzxPelHBElCz92bjIR/7u 9xECJvDjAV7aIAk2ab3kuFbKcGbBA+U= Authentication-Results: imf21.hostedemail.com; dkim=none; spf=pass (imf21.hostedemail.com: domain of cmarinas@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=cmarinas@kernel.org; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none) X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 6F05F1C0037 X-Stat-Signature: bijjzspats64kqifns8za3j6wb5sjinw X-Rspam-User: X-HE-Tag: 1666965756-265417 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: On Tue, Oct 25, 2022 at 03:17:15AM +0300, Kirill A. Shutemov wrote: > diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h > index d3f8b5df0c1f..81ac12d69795 100644 > --- a/arch/arm64/include/asm/mmu_context.h > +++ b/arch/arm64/include/asm/mmu_context.h > @@ -278,6 +278,12 @@ void post_ttbr_update_workaround(void); > unsigned long arm64_mm_context_get(struct mm_struct *mm); > void arm64_mm_context_put(struct mm_struct *mm); > > +#define mm_untag_mask mm_untag_mask > +static inline unsigned long mm_untag_mask(struct mm_struct *mm) > +{ > + return -1UL >> 8; > +} > + > #include For arm64: Acked-by: Catalin Marinas