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 B0D82C433F5 for ; Thu, 12 May 2022 20:03:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4E6C48D0008; Thu, 12 May 2022 16:03:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4929F8D0006; Thu, 12 May 2022 16:03:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 35BDE8D0008; Thu, 12 May 2022 16:03:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 252618D0006 for ; Thu, 12 May 2022 16:03:17 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id F12CC61350 for ; Thu, 12 May 2022 20:03:16 +0000 (UTC) X-FDA: 79458165192.09.53BDD94 Received: from mail-pj1-f43.google.com (mail-pj1-f43.google.com [209.85.216.43]) by imf14.hostedemail.com (Postfix) with ESMTP id 4D79B1000B0 for ; Thu, 12 May 2022 20:03:14 +0000 (UTC) Received: by mail-pj1-f43.google.com with SMTP id cu23-20020a17090afa9700b001d98d8e53b7so6705128pjb.0 for ; Thu, 12 May 2022 13:03:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:in-reply-to:message-id:references :mime-version; bh=SXI94nD5gOripCd12HG6fXgsfpqLsOif30Q1Umyq2ic=; b=ZaLsm7ggSw/Imeo38KL9IncPH01fmrQ8x8F5kjUmb5hmTDUX6nWoJ5hG7LAI5a5WHZ +5kxUV7rS8ejV7DFGdZsSUigTVUpDiGCTKVRKGEYKyfYHzMkqi0zAwkQTY2SteeM2qEG USMbCG7r6d3lSffQNgh2SRYez9VDHKH6iVjgyskMmp+eGYfixKJHam7wcLUaP4TbWOc/ dE+sVD/VqFYP3zSsJwIBJsFayCS3dFpcoFNGFhI4GvKwk6tOYOJ7hGdjTx026IGef5m3 x/8by0H15oY7fG92KUYIPXjKryPwfB/BSrIO+xi58oI8+02AXTBiU9xugwd2kFXxVs0I WOAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:mime-version; bh=SXI94nD5gOripCd12HG6fXgsfpqLsOif30Q1Umyq2ic=; b=Rkgp2pNLcLV3U9Wck7VIjO1rlcCkMTDxEiQq8Et4eFNaXRiyiUcbYxFlgkUp/aBVO8 oZXOAOllfsf3YX40mD0dImCiSiK0GdQPA3DhDDMv7KNeda2jVnbOznTiWFpQLpS0OuaT jFcNCa/7FOlw3ZvIGuYvLnswXXTLFa8MtaYxEOGzM0jWFMzSb/ccUmgi8IM2SJEm+0m9 rZ+GfWkVpVeb/xL7oQdzx4GpNEvR+5CWsRr3pKZhMZPsAzwJLuhrEmYMETkMep4Vc5mC mwrGwxzvAMJ1RM1yiKb6Z9y3uqpMPxneTV/KQqwUbnLo+nOWKui5BYkxxUC37snu/xrM YxLA== X-Gm-Message-State: AOAM532cxj8ukjYVbUQm6ZeyELeD5Evurr2gEgvb/PKuNUyDFws2ujBu K+sANsbtIWJOBHWMuYi7Ryq6cA== X-Google-Smtp-Source: ABdhPJx0+XdCdYUGKStkMetq6YQirNkaz/Bv1+B4PjIfhCYrN4qmdFMen+1s6trarM9rZuwr96A10g== X-Received: by 2002:a17:902:bd81:b0:15f:2f8f:ea99 with SMTP id q1-20020a170902bd8100b0015f2f8fea99mr1439480pls.7.1652385795491; Thu, 12 May 2022 13:03:15 -0700 (PDT) Received: from [2620:15c:29:204:8122:ccb0:c783:c757] ([2620:15c:29:204:8122:ccb0:c783:c757]) by smtp.gmail.com with ESMTPSA id y23-20020a17090264d700b0015e8d4eb24esm293636pli.152.2022.05.12.13.03.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 May 2022 13:03:15 -0700 (PDT) Date: Thu, 12 May 2022 13:03:14 -0700 (PDT) From: David Rientjes To: Zach O'Keefe cc: Alex Shi , David Hildenbrand , Matthew Wilcox , Michal Hocko , Pasha Tatashin , Peter Xu , SeongJae Park , Song Liu , Vlastimil Babka , Yang Shi , Zi Yan , linux-mm@kvack.org, Andrea Arcangeli , Andrew Morton , Arnd Bergmann , Axel Rasmussen , Chris Kennelly , Chris Zankel , Helge Deller , Hugh Dickins , Ivan Kokshaysky , "James E.J. Bottomley" , Jens Axboe , "Kirill A. Shutemov" , Matt Turner , Max Filippov , Miaohe Lin , Minchan Kim , Patrick Xia , Pavel Begunkov , Thomas Bogendoerfer Subject: Re: [PATCH v5 10/13] mm/madvise: add MADV_COLLAPSE to process_madvise() In-Reply-To: <20220504214437.2850685-11-zokeefe@google.com> Message-ID: <6efd6391-ecc-c6b8-c2fe-26b8d9ccf923@google.com> References: <20220504214437.2850685-1-zokeefe@google.com> <20220504214437.2850685-11-zokeefe@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Rspamd-Queue-Id: 4D79B1000B0 X-Stat-Signature: 64fqam3gqa3qq1nqmjqurcat8fwn9ues X-Rspam-User: Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=ZaLsm7gg; spf=pass (imf14.hostedemail.com: domain of rientjes@google.com designates 209.85.216.43 as permitted sender) smtp.mailfrom=rientjes@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspamd-Server: rspam09 X-HE-Tag: 1652385794-55700 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, 4 May 2022, Zach O'Keefe wrote: > Allow MADV_COLLAPSE behavior for process_madvise(2) if caller has > CAP_SYS_ADMIN or is requesting collapse of it's own memory. > > Signed-off-by: Zach O'Keefe Acked-by: David Rientjes