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 CBC81C433F5 for ; Thu, 30 Dec 2021 19:11:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5BC376B0075; Thu, 30 Dec 2021 14:11:49 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 51E9E6B0078; Thu, 30 Dec 2021 14:11:49 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 324696B007B; Thu, 30 Dec 2021 14:11:49 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 1ECCA6B0075 for ; Thu, 30 Dec 2021 14:11:49 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id CE91682499B9 for ; Thu, 30 Dec 2021 19:11:48 +0000 (UTC) X-FDA: 78975405096.16.534E876 Received: from mail-io1-f52.google.com (mail-io1-f52.google.com [209.85.166.52]) by imf26.hostedemail.com (Postfix) with ESMTP id 7592D140006 for ; Thu, 30 Dec 2021 19:11:48 +0000 (UTC) Received: by mail-io1-f52.google.com with SMTP id i14so29783031ioj.12 for ; Thu, 30 Dec 2021 11:11:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rrhmOz+RWOitrnUQCMaMCSKwtj1JoPe3FFZpv8eycXk=; b=eukBzX8N02HpGqLlUkM+JYIlCmS26eqZjqdJOnIrt0PbIj1YnC8TqiKP3Isx3fgEyu 2wVU810MwxzuDSfXfFtcqp5bVhUxrnqx63Pc8xUREB6hx+8VN10eByOjhokBHpIOXaE9 5BNXlkwwk1xF+f9FqRhvKHVZLoTAW7LMinOoUGzonBjTSH4uTEuVZVD3aPL7+LR6X435 gafNfwDI9cbFWaK3TVPyH2Pwpl5ZtSYrWPjM1+9Yb3egXJ794iTHlfqLGwFfoRqhSBNa NaHhmgjV4UlipZobOzoZS95UmBgJpD9chYA3ZpN7r8L3TGYShV+2ZekVkAsSzqUwzgTp YyBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rrhmOz+RWOitrnUQCMaMCSKwtj1JoPe3FFZpv8eycXk=; b=WkLrsbQEBE5syslz+33imVzjo4mvyJ53ZJh8L9S5oh5j7GzIrf30cGwR98/R55yv9I Nm9CpJAtwdk6Sk4CxS8xVaDcQPelUHg5yHSRQ8OI8XgeD4Aot6v4T1NgTeuRChbhFAWF 74fHkEmN7r+TOv4V0AOMyL99MMdvAvOf9Z1UT1NamHNI1yIzzKpvaZUlgilEB1xa6ROP BqPTUzzeOTUWJ82UVou/2a1pbNJJiY9afsAmmr+5gGBTlacvsFHhuXnDdpRGpjg+dqk7 ZCbQtpudq0vXkLhewtdfGci1m5g7LMwH0SJuiPNbuVGdJGLDp8hcwXEIrQjBaaaPf86R mt1Q== X-Gm-Message-State: AOAM531yh+LhSVHs/d+OWqRvj8TgmAANfZHaehtrynZB9jJXhVtwvgy4 GnN85QLXXTeEkvnuJUx4Bo88fVXelAIP9uQSUl0= X-Google-Smtp-Source: ABdhPJw2GBQhTSP5t4LHhC2FzGVDRxWuMl52NmFS9MImlEOpRI7vQ5djis8y2IGXBbwfA+BUZlTH6g8lYyFt0siciBg= X-Received: by 2002:a5e:d502:: with SMTP id e2mr14473843iom.118.1640891507994; Thu, 30 Dec 2021 11:11:47 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Andrey Konovalov Date: Thu, 30 Dec 2021 20:11:37 +0100 Message-ID: Subject: Re: [PATCH mm v4 29/39] kasan, page_alloc: allow skipping memory init for HW_TAGS To: Marco Elver Cc: andrey.konovalov@linux.dev, Alexander Potapenko , Andrew Morton , Dmitry Vyukov , Andrey Ryabinin , kasan-dev , Linux Memory Management List , Vincenzo Frascino , Catalin Marinas , Will Deacon , Mark Rutland , Linux ARM , Peter Collingbourne , Evgenii Stepanov , LKML , Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=eukBzX8N; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf26.hostedemail.com: domain of andreyknvl@gmail.com designates 209.85.166.52 as permitted sender) smtp.mailfrom=andreyknvl@gmail.com X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 7592D140006 X-Stat-Signature: 5pyt6xk6daarjcwcg98nhp7w4fcxknis X-HE-Tag: 1640891508-469990 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, Dec 21, 2021 at 1:30 PM Marco Elver wrote: > > On Mon, Dec 20, 2021 at 11:02PM +0100, andrey.konovalov@linux.dev wrote: > [...] > > /* Room for N __GFP_FOO bits */ > > #define __GFP_BITS_SHIFT (24 + \ > > + IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \ > > IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \ > > IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \ > > IS_ENABLED(CONFIG_LOCKDEP)) > > Does '3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS)' work? Yes, will do in v5.