From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-84399-1519173866-3-1424211539848785315 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='US-ASCII' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-api-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1519173865; b=t2CUX9YuoeSoaDWsrsuj0PEDREkAL6olUAsXCGTEyhKRWLM 74LO4uoq+IBnrnxnMyt2vtAvne2r8QA+EUE9iZYyNQtlm1fh5D5aYptxAbeTNimv 7NuEMuOkSutsY8oCG1GrA4+d7KQ7eIg3Il0JiPZrJsIs2Q/M0c/9JEHW7WM4WAYV 6Z2MvPsGe5hwcJiOIc1h65fs8CY85llOFxHwZORpFpr1574RWV7g7+spMDaBSA+H FITwjukbfiDW5aP0B++6gUG6CpSyV+y9qGzwsl2b56t9mKjIjrY0iIl2I2AuKlJ0 Adp70jC6/40ahbuxUrNN3mRcth5vOAE4MMYpgSw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :in-reply-to:references:mime-version:content-type :content-transfer-encoding:sender:list-id; s=arctest; t= 1519173865; bh=t233A1EIgh+/C/y18XwIsn1bsrCKNYQ0AF8zGa3mOXM=; b=P J/pMSGrEnkxV/PP2rZOAcgZaO5SBd4rhqxPVjOibnA9f4hJDIlNK8ybpnKI226Ze gis43zymatMBkLG1DHDhJ0K6/6MMCMZyyk6Yw1I7j4/f/iFPkbNq63BbdfCXny43 R1R1emJjUauYTUZMICoC5Cl0UgLJ/RuzwCZN3nS2ClnIBw93JfVwACAq+zFeUR0a B5ddoZR7nTkIC3b7akBF8vlSQYy4D+rZXIfCe5KQtKgtENOeiSJLZxRqgzETYjia mMCqEdPu/8urjoM7WsFWFG3oRMQweNXhKIqJuqLSxwhW1TS91zs66j8MEvd4VI+t xByEeGualUEiBtuO8jYJw== ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linux-foundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linux-foundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linux-foundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linux-foundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751000AbeBUAoJ (ORCPT ); Tue, 20 Feb 2018 19:44:09 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:41540 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750735AbeBUAoJ (ORCPT ); Tue, 20 Feb 2018 19:44:09 -0500 Date: Tue, 20 Feb 2018 16:44:06 -0800 From: Andrew Morton To: Mike Rapoport Cc: Alexander Viro , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, criu@openvz.org, gdb@sourceware.org, devel@lists.open-mpi.org, rr-dev@mozilla.org, Arnd Bergmann , Pavel Emelyanov , Michael Kerrisk , Thomas Gleixner , Josh Triplett , Jann Horn , Greg KH , Andrei Vagin Subject: Re: [PATCH v5 0/4] vm: add a syscall to map a process memory into a pipe Message-Id: <20180220164406.3ec34509376f16841dc66e34@linux-foundation.org> In-Reply-To: <1515479453-14672-1-git-send-email-rppt@linux.vnet.ibm.com> References: <1515479453-14672-1-git-send-email-rppt@linux.vnet.ibm.com> X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Tue, 9 Jan 2018 08:30:49 +0200 Mike Rapoport wrote: > This patches introduces new process_vmsplice system call that combines > functionality of process_vm_read and vmsplice. All seems fairly strightforward. The big question is: do we know that people will actually use this, and get sufficient value from it to justify its addition?