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 51B5DC433EF for ; Thu, 21 Jul 2022 13:48:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7AC036B0071; Thu, 21 Jul 2022 09:48:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 75AAB8E0001; Thu, 21 Jul 2022 09:48:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6222D6B0074; Thu, 21 Jul 2022 09:48:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 4F1ED6B0071 for ; Thu, 21 Jul 2022 09:48:25 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 2870C140883 for ; Thu, 21 Jul 2022 13:48:25 +0000 (UTC) X-FDA: 79711236570.22.8A65E25 Received: from mail-yb1-f177.google.com (mail-yb1-f177.google.com [209.85.219.177]) by imf10.hostedemail.com (Postfix) with ESMTP id ADC20C008D for ; Thu, 21 Jul 2022 13:48:24 +0000 (UTC) Received: by mail-yb1-f177.google.com with SMTP id i14so2877695yba.1 for ; Thu, 21 Jul 2022 06:48:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=mYg0pXExwxUW6uWYOtJRBBMxq1fhaTSolEX7wK8C8KA=; b=oxcNWd3bUI9mO4bfTJg5FFegz5mK7HDT8MmLyjAGh02VBNKNPGd3EYGzZp6tbtNkTt Nlat0xvdmkdYb04t7/NHGhCWe4YDT7JbXFPaCnziMyfWmwhwKyOcpRsuNe2D4FHIjNf5 oq8B3XulrWuw69r8TIoY+zwC6dm2Zup8i6TrKYu4j34fzpTI5/4klQe2x6jUto7itvq3 9ToXNdop0qcF9Brn5vZt7WvLZUtR0cK7NXbKHHB757V1sOY/PU5dn3vgl9rR7CR7mk8Y pWgS2Z9ZY6ECo9kl4gFSdi15t+r6zYIGvMdUKwWPgKfqoGsAjJh3fnvBGCHHgh4iFFXh Inlg== 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=mYg0pXExwxUW6uWYOtJRBBMxq1fhaTSolEX7wK8C8KA=; b=SxIZINRuHubSmUfwl88EXWhpvujBo4qLxfKOE4b4vRYuWk65bZoNRSIMSlK45zPKp8 Hh9BFjzBdE1322xUQU4HN++ugXyN2DHBVBpH7+V2Ds55CnJvNP/Rz7fINKRN2x/Y/LQU ACkXeb+qBQq8P2neRan4dlE8RrapkbDCuDKIO7hYupX1KlEVI6vIhTV+DyWVA95CKLld E4XJtKGxyyVg7H8j2VQ/46OMwkaBpZRtV4/19oKDl8q0m9pzzIQT6781qqMLrWuvnTHn 8e7Y80/v0hrn1zQJjNJhtU7j+aWJb1oB3l/HPMGhKLQfBKtGvcDsMdJvFOtwClaZ0oMg ZIlg== X-Gm-Message-State: AJIora+ONWYbzUWX6ZyE6mN+e4/kaX4PPoKTJGBU6d3sUe3ZP81LzXOw Tt6I6WQlMx94nyDwgSKR9NgcoeM8xwIdAz64IoGE9g== X-Google-Smtp-Source: AGRyM1uw5xmLYGC/Gr6lj5CvGR4hMo/BK7xOaApowwLXRKW5wEw9IqTe5twBofh/1qHtyzFGDg/gratb6pk6lHg+ND0= X-Received: by 2002:a25:5006:0:b0:670:9834:8767 with SMTP id e6-20020a255006000000b0067098348767mr6452844ybb.147.1658411303743; Thu, 21 Jul 2022 06:48:23 -0700 (PDT) MIME-Version: 1.0 References: <20220712231328.5294-1-kirill.shutemov@linux.intel.com> <20220712231328.5294-8-kirill.shutemov@linux.intel.com> In-Reply-To: <20220712231328.5294-8-kirill.shutemov@linux.intel.com> From: Alexander Potapenko Date: Thu, 21 Jul 2022 15:47:47 +0200 Message-ID: Subject: Re: [PATCHv5 07/13] x86: Expose untagging mask in /proc/$PID/arch_status To: "Kirill A. Shutemov" Cc: Dave Hansen , Andy Lutomirski , Peter Zijlstra , "the arch/x86 maintainers" , Kostya Serebryany , Andrey Ryabinin , Andrey Konovalov , Taras Madan , Dmitry Vyukov , "H . J . Lu" , Andi Kleen , Rick Edgecombe , Linux Memory Management List , LKML Content-Type: text/plain; charset="UTF-8" ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1658411304; a=rsa-sha256; cv=none; b=HUJ1ddm7cPGugsNEHBGPoc66J4m1wmMBPJXnT75tSRS19ntmEK3d3bwm2tLtitGoUcJLdK O2rwVeZIs01DzviQnFcU/19itNXT7lj88gqWDhGUhLmI5UYUANeQw2pmdd7j1Ql9OzH8M2 1AlbW5qLICCyF2g/nvNgP1e6uuOUZ6o= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=oxcNWd3b; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf10.hostedemail.com: domain of glider@google.com designates 209.85.219.177 as permitted sender) smtp.mailfrom=glider@google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1658411304; 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:dkim-signature; bh=mYg0pXExwxUW6uWYOtJRBBMxq1fhaTSolEX7wK8C8KA=; b=0oRi8llyE9DatI3SYHZTZz6kq6MF2+dKGCK9SXca1uL0wVlw1wkbrEoRbJXllftYFPOTDB gSOGbd7UlVy24SzkartSIX86julD4WxHVUkVoejxzPCRwxjhOIbJqc8NwCg+dyL9YfEFjy m6uybnRodgMcOJ8/DhTUWS7VnWNicP8= X-Rspam-User: Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=oxcNWd3b; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf10.hostedemail.com: domain of glider@google.com designates 209.85.219.177 as permitted sender) smtp.mailfrom=glider@google.com X-Rspamd-Server: rspam01 X-Stat-Signature: kwcamcqehh6t6aubhjtoygwxifhy1a48 X-Rspamd-Queue-Id: ADC20C008D X-HE-Tag: 1658411304-255922 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 Wed, Jul 13, 2022 at 1:13 AM Kirill A. Shutemov wrote: > > Add a line in /proc/$PID/arch_status to report untag_mask. It can be > used to find out LAM status of the process from the outside. It is > useful for debuggers. > > Signed-off-by: Kirill A. Shutemov Tested-by: Alexander Potapenko