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=-3.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 977DCC433DB for ; Mon, 15 Feb 2021 09:14:11 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 371B264E05 for ; Mon, 15 Feb 2021 09:14:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 371B264E05 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FXUGJAGioUN8+vyzE++N5Srh8p1a/7sIMix8f1kdVOY=; b=sLRVs+/s995Oh2bD+FiyGI1BH 6ntjYUSUX77Kh63D0tNKBEaffMB53GtHFQwq/wDQeUwc7j0Ph5XJPOkhkWoIMzwYTGpDxti5pHXu8 XnNO9a1+BhliPP/m9Ra2eiSsoD5IXwJm2qscC4uOrZ/F03FzIOR+Faf27u37wCIReE1pex2FE1ZEe d1Aedr5uOMxvvl8cCoKOR3SG6NwWD0Humm03P1kwLVfeztrCiP1x8KvvlK+i0q8fR05BiBcgdYlvQ BFJwEe/OYwZ9t+CvfKjg/wrfxUYeGsMTpYWNulZoOZRnObbq+95/2eXobhdAOWAPFsfx/grKJBWQ4 pVnIB5wpw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lBZxB-0006k8-9W; Mon, 15 Feb 2021 09:14:01 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lBZx6-0006iJ-Gd; Mon, 15 Feb 2021 09:13:57 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1613380431; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=miCNDkPWZZBRVJ8Jtr1LFzD24yWA9N0KNTV3BkO+MBs=; b=TETHPiEq8kl7uQEKm1Aff4L3NsQE0DM02/lfPkpKudaCI6/5lNvCven/uHuRT24qzIXWlb R5BxAqdLhSywOBM2nG5lWN1rFZRScNEvDlYO6zf3OlgEc7VuRTl3HqG4uIymDgc/8zHABu C6iAKZCoFVJI6hxssRHEbP17I8dvFo0= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 9278BAD19; Mon, 15 Feb 2021 09:13:51 +0000 (UTC) Date: Mon, 15 Feb 2021 10:13:50 +0100 From: Michal Hocko To: James Bottomley Subject: Re: [PATCH v17 07/10] mm: introduce memfd_secret system call to create "secret" memory areas Message-ID: References: <20210214091954.GM242749@kernel.org> <052DACE9-986B-424C-AF8E-D6A4277DE635@redhat.com> <244f86cba227fa49ca30cd595c4e5538fe2f7c2b.camel@linux.ibm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <244f86cba227fa49ca30cd595c4e5538fe2f7c2b.camel@linux.ibm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210215_041356_799938_9D3A6081 X-CRM114-Status: GOOD ( 25.28 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , David Hildenbrand , Peter Zijlstra , Catalin Marinas , Dave Hansen , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, "H. Peter Anvin" , Christopher Lameter , Shuah Khan , Thomas Gleixner , Elena Reshetova , linux-arch@vger.kernel.org, Tycho Andersen , linux-nvdimm@lists.01.org, Will Deacon , x86@kernel.org, Matthew Wilcox , Mike Rapoport , Ingo Molnar , Michael Kerrisk , Palmer Dabbelt , Arnd Bergmann , Hagen Paul Pfeifer , Borislav Petkov , Alexander Viro , Andy Lutomirski , Paul Walmsley , "Kirill A. Shutemov" , Dan Williams , linux-arm-kernel@lists.infradead.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Palmer Dabbelt , linux-fsdevel@vger.kernel.org, Shakeel Butt , Andrew Morton , Rick Edgecombe , Roman Gushchin , Mike Rapoport Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gU3VuIDE0LTAyLTIxIDExOjIxOjAyLCBKYW1lcyBCb3R0b21sZXkgd3JvdGU6Cj4gT24gU3Vu LCAyMDIxLTAyLTE0IGF0IDEwOjU4ICswMTAwLCBEYXZpZCBIaWxkZW5icmFuZCB3cm90ZToKPiBb Li4uXQo+ID4gPiBBbmQgaGVyZSB3ZSBjb21lIHRvIHRoZSBxdWVzdGlvbiAid2hhdCBhcmUgdGhl IGRpZmZlcmVuY2VzIHRoYXQKPiA+ID4ganVzdGlmeSBhIG5ldyBzeXN0ZW0gY2FsbD8iIGFuZCB0 aGUgYW5zd2VyIHRvIHRoaXMgaXMgdmVyeQo+ID4gPiBzdWJqZWN0aXZlLiBBbmQgYXMgc3VjaCB3 ZSBjYW4gY29udGludWUgYmlrZXNoZWRkaW5nIGZvcmV2ZXIuCj4gPiAKPiA+IEkgdGhpbmsgdGhp cyBmaXRzIGludG8gdGhlIGV4aXN0aW5nIG1lbWZkX2NyZWF0ZSgpIHN5c2NhbGwganVzdCBmaW5l LAo+ID4gYW5kIEkgaGVhcmQgbm8gY29tcGVsbGluZyBhcmd1bWVudCB3aHkgaXQgc2hvdWxkbuKA mHQuIFRoYXTigJhzIGFsbCBJIGNhbgo+ID4gc2F5Lgo+IAo+IE9LLCBzbyBsZXQncyByZXZpZXcg aGlzdG9yeS4gIEluIHRoZSBmaXJzdCB0d28gaW5jYXJuYXRpb25zIG9mIHRoZQo+IHBhdGNoLCBp dCB3YXMgYW4gZXh0ZW5zaW9uIG9mIG1lbWZkX2NyZWF0ZSgpLiAgVGhlIHNwZWNpZmljIG9iamVj dGlvbgo+IGJ5IEtpcmlsbCBTaHV0ZW1vdiB3YXMgdGhhdCBpdCBkb2Vzbid0IHNoYXJlIGFueSBj b2RlIGluIGNvbW1vbiB3aXRoCj4gbWVtZmQgYW5kIHNvIHNob3VsZCBiZSBhIHNlcGFyYXRlIHN5 c3RlbSBjYWxsOgo+IAo+IGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2xpbnV4LWFwaS8yMDIwMDcx MzEwNTgxMi5kbnd0ZGhzdXlqM3hiaDRmQGJveC8KClRoYW5rcyBmb3IgdGhlIHBvaW50ZXIuIEJ1 dCB0aGlzIGFyZ3VtZW50IGhhc24ndCBiZWVuIGNoYWxsZW5nZWQgYXQgYWxsLgpJdCBoYXNuJ3Qg YmVlbiBicm91Z2h0IHVwIHRoYXQgdGhlIG92ZXJsYXAgd291bGQgYmUgY29uc2lkZXJhYmxlIGhp Z2hlcgpieSB0aGUgaHVnZXRsYi9zZWFsaW5nIHN1cHBvcnQuIEFuZCBzbyBmYXIgbm9ib2R5IGhh cyBjbGFpbWVkIHRob3NlCmNvbWJpbmF0aW9ucyBhcyB1bnZpYWJsZS4KCj4gVGhlIG90aGVyIG9i amVjdGlvbiByYWlzZWQgb2ZmbGlzdCBpcyB0aGF0IGlmIHdlIGRvIHVzZSBtZW1mZF9jcmVhdGUs Cj4gdGhlbiB3ZSBoYXZlIHRvIGFkZCBhbGwgdGhlIHNlY3JldCBtZW1vcnkgZmxhZ3MgYXMgYW4g YWRkaXRpb25hbCBpb2N0bCwKPiB3aGVyZWFzIHRoZXkgY2FuIGJlIHNwZWNpZmllZCBvbiBvcGVu IGlmIHdlIGRvIGEgc2VwYXJhdGUgc3lzdGVtIGNhbGwuIAo+IFRoZSBjb250YWluZXIgcGVvcGxl IHZpb2xlbnRseSBvYmplY3RlZCB0byB0aGUgaW9jdGwgYmVjYXVzZSBpdCBjYW4ndAo+IGJlIHBy b3Blcmx5IGFuYWx5c2VkIGJ5IHNlY2NvbXAgYW5kIG11Y2ggcHJlZmVycmVkIHRoZSBzeXNjYWxs IHZlcnNpb24uCj4gCj4gU2luY2Ugd2UncmUgZHVtcGluZyB0aGUgdW5jYWNoZWQgdmFyaWFudCwg dGhlIGlvY3RsIHByb2JsZW0gZGlzYXBwZWFycwo+IGJ1dCBzbyBkb2VzIHRoZSBwb3NzaWJpbGl0 eSBvZiBldmVyIGFkZGluZyBpdCBiYWNrIGlmIHdlIHRha2Ugb24gdGhlCj4gY29udGFpbmVyIHBl b3BsZXMnIG9iamVjdGlvbi4gIFRoaXMgYXJndWVzIGZvciBhIHNlcGFyYXRlIHN5c2NhbGwKPiBi ZWNhdXNlIHdlIGNhbiBhZGQgYWRkaXRpb25hbCBmZWF0dXJlcyBhbmQgZXh0ZW5kIHRoZSBBUEkg d2l0aCBmbGFncwo+IHdpdGhvdXQgY2F1c2luZyBhbnRpLWlvY3RsIHJpb3RzLgoKSSBhbSBzb3Jy eSBidXQgSSBkbyBub3QgdW5kZXJzdGFuZCB0aGlzIGFyZ3VtZW50LiBXaGF0IGtpbmQgb2YgZmxh Z3MgYXJlCndlIHRhbGtpbmcgYWJvdXQgYW5kIHdoeSB3b3VsZCB0aGF0IGJlIGEgcHJvYmxlbSB3 aXRoIG1lbWZkX2NyZWF0ZQppbnRlcmZhY2U/IENvdWxkIHlvdSBiZSBtb3JlIHNwZWNpZmljIHBs ZWFzZT8KLS0gCk1pY2hhbCBIb2NrbwpTVVNFIExhYnMKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1y aXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxt YW4vbGlzdGluZm8vbGludXgtcmlzY3YK