From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) by kanga.kvack.org (Postfix) with ESMTP id F187A8E0001 for ; Sun, 6 Jan 2019 16:46:57 -0500 (EST) Received: by mail-lj1-f198.google.com with SMTP id e12-v6so10834431ljb.18 for ; Sun, 06 Jan 2019 13:46:57 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id u10sor15902865lfu.33.2019.01.06.13.46.55 for (Google Transport Security); Sun, 06 Jan 2019 13:46:55 -0800 (PST) Received: from mail-lj1-f180.google.com (mail-lj1-f180.google.com. [209.85.208.180]) by smtp.gmail.com with ESMTPSA id m10-v6sm13590778ljj.34.2019.01.06.13.46.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 06 Jan 2019 13:46:53 -0800 (PST) Received: by mail-lj1-f180.google.com with SMTP id k15-v6so36511962ljc.8 for ; Sun, 06 Jan 2019 13:46:53 -0800 (PST) MIME-Version: 1.0 References: <20190106001138.GW6310@bombadil.infradead.org> In-Reply-To: From: Linus Torvalds Date: Sun, 6 Jan 2019 13:46:37 -0800 Message-ID: Subject: Re: [PATCH] mm/mincore: allow for making sys_mincore() privileged Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org List-ID: To: Matthew Wilcox Cc: Jann Horn , Jiri Kosina , Andrew Morton , Greg KH , Peter Zijlstra , Michal Hocko , Linux-MM , kernel list , Linux API On Sat, Jan 5, 2019 at 5:50 PM Linus Torvalds wrote: > > Slightly updated patch in case somebody wants to try things out. I decided to just apply that patch. It is *not* marked for stable, very intentionally, because I expect that we will need to wait and see if there are issues with it, and whether we might have to do something entirely different (more like the traditional behavior with some extra "only for owner" logic). But doing a test patch during the merge window (which is about to close) sounds like the right thing to do. Linus 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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 9E54CC43612 for ; Sun, 6 Jan 2019 21:46:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3A5E9213A2 for ; Sun, 6 Jan 2019 21:46:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="M/bEAEry" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3A5E9213A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 82E368E0003; Sun, 6 Jan 2019 16:46:58 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7B3508E0001; Sun, 6 Jan 2019 16:46:58 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6A3488E0003; Sun, 6 Jan 2019 16:46:58 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) by kanga.kvack.org (Postfix) with ESMTP id F187A8E0001 for ; Sun, 6 Jan 2019 16:46:57 -0500 (EST) Received: by mail-lj1-f198.google.com with SMTP id e12-v6so10834431ljb.18 for ; Sun, 06 Jan 2019 13:46:57 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:mime-version:references :in-reply-to:from:date:message-id:subject:to:cc; bh=Nn7oD0ol2iP0y2yprlx6IYbrc5ZCwYkBInEfjdZxW1Q=; b=lZ/rJhqJZ//P1vswWkImLXwpv3hIcgJBgzQzq59l/9eGHqW2+Ap/xK6nELH9jtapWU zA3hHJYzx97FEKkcg2/yLhSAHnTjF9iYsW7dXfx9qJiNsf5JX+7WllmmkEOeRyvHB4rM a++v1FPkJ0wOgfTr5G3L9xBO+CXOk2FDFHmWroU4/NrV569eMYw7YfsWfgfWYtn1eNWD uIkU4Tz06aK9Xwnb8HBNc9Bbr80tgR7HrMl80P09v9yWIj/sSLvS5PWu+QasLi47RRZv 9eOrpxb/dJ1r3OvulXmcg6j9UDOH2jGCcp3wI348MtHhPQGFpAFsvr73ehbpF9Pgccwl bBBQ== X-Gm-Message-State: AA+aEWYVPVMvltir/+YJgPSKjD4MAnwhuSQ5khNaIV8EYjsFEKW2xahH V93EyQxoYhiOfDALs1rH6iNJWIKVh1t0pXzBo/tYLhnP+bCkbb65omwnnU3X9gFpu69PpCuvpX/ XnGvglgzmCFzaeQhAo/SZbaF44y1ANy6YbFp9qF8NyegIej2r92+kFgQ85951ZyO6uLqxRkvkMm cQSWr2mj3HSPKaoITgx3ssjJ2tZe/gvT6gfoZKVQJgL0REtP0aKGcUHfEd+cELG0LIdXPMj2D0p ER29sfHQytrUkTvhn0JigF6urPRSHg6P+4hysdiX5730CIdKgnyB+nOxu2XSSOlaO7ikb8elued SfLOPpoRTxFeaX3bjL8btddHk3c9DHSdrXnx3MkPRnle9AQlvfiFDCVlWZqadJrTEzOHYoLX1aU 4 X-Received: by 2002:a19:2b54:: with SMTP id r81mr31135585lfr.34.1546811217222; Sun, 06 Jan 2019 13:46:57 -0800 (PST) X-Received: by 2002:a19:2b54:: with SMTP id r81mr31135568lfr.34.1546811216113; Sun, 06 Jan 2019 13:46:56 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1546811216; cv=none; d=google.com; s=arc-20160816; b=mgm+QRkojaILe39LfiUhbdk2fd9mwKx3jnaw9JfnetWNcUA0sWdNW4LfPaybDzAjHO qrTsYcXic+YVSNyrCPDgC0Gi6pY7ZCV1XSK+ZpYUIGAEjX7LmnWqcG1a+IEXMh0SCkDk 87QLO7VC8V31CZBYq7vo6e2JPAB7vxIfJHqCAcS3BhVtg2jGyQhx3nglX+EhikB0Bf3b nlCvQolZWf4dZeLhHVsYyJUnNDCQQy/3XQmg+aR3tS9sjnTDLHHmYHE6BCRYfyxqW4u1 fQt6w69HZtlEHh9bVLDN0KCXHk/XGZ6O6654/21V6ui1oiWsMblvHZn4WpqoQMdeSi2f aLvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:dkim-signature; bh=Nn7oD0ol2iP0y2yprlx6IYbrc5ZCwYkBInEfjdZxW1Q=; b=BZA4s9Cqh8EMZuylKn4XDxQJSLkGlbtPlVweG8F3YDbduBW9ySylz7uy9LWAMwJXvM zgtZSjAEHJ5cDhX1uQQDHKKyNtpJRXYVdtAh/b9HsEWnkAKNpycr/UVDzU4HMQZDYvnz /6utubcp9GLAdlu3uwwqBCGWWJ9B5TT+egbC9uf3fJW2Y96bdobd5wXQrcJl7zY0cJ4X 3tvXr1Z9pDqazcw2IUYRCl9/QnfijI3k9gBnskRnDet5wdEn+Yc1Irx9WPQOJqYoN/Tk 7fEyC9Y0JXnrZ8ZrE3qTwqkTFAez3e5FYLT5zvReI29d7lece8byUKnF15nYceM/ZJKw 5V3g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=google header.b="M/bEAEry"; spf=pass (google.com: domain of torvalds@linuxfoundation.org designates 209.85.220.65 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. 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[209.85.208.180]) by smtp.gmail.com with ESMTPSA id m10-v6sm13590778ljj.34.2019.01.06.13.46.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 06 Jan 2019 13:46:53 -0800 (PST) Received: by mail-lj1-f180.google.com with SMTP id k15-v6so36511962ljc.8 for ; Sun, 06 Jan 2019 13:46:53 -0800 (PST) X-Received: by 2002:a2e:95c6:: with SMTP id y6-v6mr11741960ljh.59.1546811213226; Sun, 06 Jan 2019 13:46:53 -0800 (PST) MIME-Version: 1.0 References: <20190106001138.GW6310@bombadil.infradead.org> In-Reply-To: From: Linus Torvalds Date: Sun, 6 Jan 2019 13:46:37 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] mm/mincore: allow for making sys_mincore() privileged To: Matthew Wilcox Cc: Jann Horn , Jiri Kosina , Andrew Morton , Greg KH , Peter Zijlstra , Michal Hocko , Linux-MM , kernel list , Linux API Content-Type: text/plain; charset="UTF-8" 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: Message-ID: <20190106214637.WKjqV6rP1AeareyYWgF0z2KbdrUaahzyDcpNP9BzCyg@z> On Sat, Jan 5, 2019 at 5:50 PM Linus Torvalds wrote: > > Slightly updated patch in case somebody wants to try things out. I decided to just apply that patch. It is *not* marked for stable, very intentionally, because I expect that we will need to wait and see if there are issues with it, and whether we might have to do something entirely different (more like the traditional behavior with some extra "only for owner" logic). But doing a test patch during the merge window (which is about to close) sounds like the right thing to do. Linus